{"product_id":"osaki-duke-xl-4d-massage-chair","title":"Osaki Duke XL 4D Massage Chair","description":"\u003cstyle\u003e\n  .t4s-tab-content {\n    max-width: 940px;\n    margin: 0 auto;\n    line-height: 1.75;\n    color: #2f2f2f;\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Arial, sans-serif;\n    text-align: left;\n    padding: 24px 16px;\n    font-size: 17px;\n  }\n\n  .t4s-tab-content * {\n    box-sizing: border-box;\n  }\n\n  .t4s-tab-content h1 {\n    font-size: 36px;\n    color: #111;\n    margin: 0 0 18px 0;\n    padding-bottom: 16px;\n    border-bottom: 3px solid #b78b4a;\n    font-weight: 540;\n    line-height: 1.18;\n    letter-spacing: -0.4px;\n  }\n\n  .t4s-tab-content h2 {\n    font-size: 26px;\n    color: #7a5b2d;\n    margin: 54px 0 18px 0;\n    padding-bottom: 10px;\n    border-bottom: none;\n    font-weight: 520;\n    line-height: 1.25;\n    letter-spacing: -0.2px;\n  }\n\n  .t4s-tab-content h3 {\n    font-size: 20px;\n    color: #7a5b2d;\n    margin: 34px 0 12px 0;\n    font-weight: 500;\n    line-height: 1.35;\n  }\n\n  .t4s-tab-content p {\n    margin: 0 0 22px 0;\n  }\n\n  .t4s-tab-content ul,\n  .t4s-tab-content ol {\n    margin: 0 0 30px 0;\n    padding-left: 22px;\n  }\n\n  .t4s-tab-content li {\n    margin-bottom: 11px;\n  }\n\n  .t4s-tab-content strong {\n    color: #111;\n    font-weight: 500;\n  }\n\n  .t4s-tab-content a {\n    color: #111;\n    text-decoration: underline;\n    text-decoration-thickness: 1px;\n    text-underline-offset: 3px;\n    font-weight: 520;\n  }\n\n  .t4s-image-block {\n    margin: 34px 0 54px 0;\n  }\n\n  .t4s-image-block.hero-image {\n    margin: 18px 0 42px 0;\n  }\n\n  .t4s-image-block.feature-image {\n    margin: 28px 0 42px 0;\n  }\n\n  .t4s-image-frame {\n    overflow: hidden;\n    border-radius: 22px;\n    border: 1px solid #eadfce;\n    background: #fbf8f3;\n    box-shadow: 0 16px 38px rgba(0, 0, 0, 0.07);\n  }\n\n  .t4s-image-frame img {\n    display: block;\n    width: 100%;\n    height: auto;\n    object-fit: cover;\n  }\n\n  .t4s-image-frame.hero-frame img,\n  .t4s-image-frame.feature-frame img {\n    aspect-ratio: 16 \/ 9;\n    object-fit: cover;\n  }\n\n  .t4s-image-caption {\n    margin: 12px 4px 0 4px;\n    color: #6b6258;\n    font-size: 14px;\n    line-height: 1.55;\n  }\n\n  .t4s-summary-grid {\n    display: grid;\n    grid-template-columns: repeat(4, minmax(0, 1fr));\n    gap: 12px;\n    margin: 22px 0 34px 0;\n  }\n\n  .t4s-summary-card {\n    position: relative;\n    background: #fbf8f3;\n    border: 1px solid #eadfce;\n    border-radius: 16px;\n    padding: 30px 26px 28px 26px;\n    min-height: 168px;\n  }\n\n  .t4s-summary-card .t4s-icon {\n    position: absolute;\n    top: 22px;\n    right: 24px;\n    width: 34px;\n    height: 34px;\n    margin: 0;\n    color: #7a5b2d;\n  }\n\n  .t4s-summary-card .t4s-icon svg {\n    width: 34px;\n    height: 34px;\n    filter: none;\n  }\n\n  .t4s-summary-card .t4s-icon-line {\n    stroke-width: 2;\n  }\n\n  .t4s-summary-label {\n    display: inline-block;\n    padding-bottom: 7px;\n    border-bottom: 1px solid #b78b4a;\n    margin: 0 46px 22px 0;\n    color: #7a5b2d;\n    font-size: 12px;\n    text-transform: uppercase;\n    letter-spacing: 1px;\n    font-weight: 520;\n  }\n\n  .t4s-summary-value {\n    display: block;\n    color: #2f2f2f;\n    font-size: 16px;\n    font-weight: 430;\n    line-height: 1.5;\n  }\n\n  .t4s-hero-panel {\n    background: #fbf8f3;\n    color: #3f3f3f;\n    padding: 32px 30px;\n    border-radius: 18px;\n    margin: 28px 0 46px 0;\n    border: 1px solid #eadfce;\n    border-left: 6px solid #b78b4a;\n    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.04);\n  }\n\n  .t4s-hero-panel p {\n    color: #3f3f3f;\n    margin-bottom: 22px;\n    font-size: 17px;\n    line-height: 1.82;\n  }\n\n  .t4s-hero-panel strong {\n    color: #242424;\n    font-weight: 520;\n  }\n\n  .t4s-hero-eyebrow {\n    display: inline-block;\n    color: #7a5b2d;\n    text-transform: uppercase;\n    letter-spacing: 1.2px;\n    font-size: 12px;\n    font-weight: 520;\n    margin-bottom: 14px;\n  }\n\n  .t4s-cta-row {\n    display: flex;\n    flex-wrap: wrap;\n    gap: 12px;\n    margin-top: 24px;\n  }\n\n  .t4s-cta-secondary {\n    display: inline-flex;\n    align-items: center;\n    justify-content: center;\n    min-height: 54px;\n    padding: 0 28px;\n    border-radius: 999px;\n    text-decoration: none !important;\n    font-size: 14px;\n    font-weight: 540;\n    letter-spacing: 0.4px;\n    line-height: 1;\n    text-transform: uppercase;\n    background: #fff;\n    color: #2f2f2f !important;\n    border: 1px solid #b78b4a;\n    transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;\n  }\n\n  .t4s-cta-secondary:hover {\n    transform: translateY(-1px);\n    background: #fbf8f3;\n    border-color: #9a743c;\n  }\n\n  .t4s-cta-light {\n    background: #fff;\n    color: #2f2f2f !important;\n    border: 1px solid #b78b4a;\n  }\n\n  .t4s-benefit-grid {\n    display: grid;\n    grid-template-columns: repeat(2, 1fr);\n    gap: 14px;\n    margin: 28px 0 36px 0;\n  }\n\n  .t4s-benefit-card {\n    background: #fff;\n    border: 1px solid #eadfce;\n    border-left: 5px solid #b78b4a;\n    border-radius: 14px;\n    padding: 18px;\n    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.04);\n  }\n\n  .t4s-benefit-card strong {\n    display: block;\n    margin-bottom: 6px;\n  }\n\n  .t4s-tab-table-wrapper {\n    overflow-x: auto;\n    margin: 28px 0 36px 0;\n    border-radius: 16px;\n    border: 1px solid #eadfce;\n    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.05);\n  }\n\n  .t4s-tab-content table {\n    width: 100%;\n    min-width: 680px;\n    border-collapse: collapse;\n    background-color: #fff;\n    table-layout: fixed;\n  }\n\n  .t4s-tab-content th,\n  .t4s-tab-content td {\n    border-bottom: 1px solid #eadfce;\n    padding: 17px 20px;\n    text-align: left;\n    vertical-align: top;\n    white-space: normal;\n    overflow-wrap: break-word;\n    word-break: normal;\n  }\n\n  .t4s-tab-content thead th {\n    background: #111;\n    color: #f4e1bd;\n    font-weight: 540;\n    text-transform: uppercase;\n    letter-spacing: 0.7px;\n    font-size: 13px;\n  }\n\n  .t4s-tab-content tbody th {\n    background: #fbf8f3;\n    color: #111;\n    font-weight: 520;\n    width: 22%;\n  }\n\n  .t4s-tab-content tbody td:nth-child(2) {\n    width: 30%;\n  }\n\n  .t4s-tab-content tbody td:nth-child(3) {\n    width: 48%;\n  }\n\n  .t4s-tab-content tbody tr:nth-child(even) td,\n  .t4s-tab-content tbody tr:nth-child(even) th {\n    background: #fffaf2;\n  }\n\n  .t4s-callout {\n    margin: 36px 0;\n    padding: 24px 26px;\n    background: #111;\n    color: #fff;\n    border-radius: 18px;\n    border-left: 6px solid #b78b4a;\n  }\n\n  .t4s-callout p {\n    color: rgba(255, 255, 255, 0.9);\n    margin-bottom: 0;\n  }\n\n  .t4s-callout strong {\n    color: #f4e1bd;\n  }\n\n  .t4s-soft-callout {\n    margin: 34px 0;\n    padding: 24px 26px;\n    background: #fbf8f3;\n    border: 1px solid #eadfce;\n    border-left: 6px solid #b78b4a;\n    border-radius: 18px;\n  }\n\n  .t4s-feature-block {\n    padding: 24px;\n    border: 1px solid #eadfce;\n    border-radius: 18px;\n    background: #fff;\n    margin: 20px 0;\n    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.04);\n  }\n\n  .t4s-feature-block h3 {\n    margin-top: 0;\n  }\n\n  .t4s-feature-block p:last-child {\n    margin-bottom: 0;\n  }\n\n  .t4s-two-column {\n    display: grid;\n    grid-template-columns: 1fr 1fr;\n    gap: 18px;\n    margin: 26px 0 36px 0;\n  }\n\n  .t4s-fit-card {\n    background: #fff;\n    border: 1px solid #eadfce;\n    border-radius: 18px;\n    padding: 24px;\n  }\n\n  .t4s-fit-card.good {\n    border-top: 5px solid #b78b4a;\n  }\n\n  .t4s-fit-card.caution {\n    border-top: 5px solid #111;\n  }\n\n  .t4s-faq-item {\n    margin: 0 0 18px 0;\n    padding: 22px 24px;\n    background: #fff;\n    border: 1px solid #eadfce;\n    border-radius: 16px;\n  }\n\n  .t4s-faq-item h3 {\n    margin-top: 0;\n  }\n\n  .t4s-faq-item p {\n    margin-bottom: 0;\n  }\n\n  .t4s-final-cta {\n    background: linear-gradient(135deg, #fbf8f3 0%, #fff 100%);\n    border: 1px solid #eadfce;\n    border-radius: 20px;\n    padding: 30px;\n    margin: 46px 0 10px 0;\n    text-align: center;\n  }\n\n  .t4s-final-cta h2 {\n    margin-top: 0;\n    border-bottom: none;\n    padding-bottom: 0;\n  }\n\n  .t4s-final-cta .t4s-cta-row {\n    justify-content: center;\n  }\n\n  .t4s-icon {\n    width: 64px;\n    height: 64px;\n    display: inline-flex;\n    align-items: center;\n    justify-content: center;\n    flex: 0 0 auto;\n    margin-bottom: 16px;\n    color: #7a5b2d;\n  }\n\n  .t4s-icon svg {\n    width: 64px;\n    height: 64px;\n    display: block;\n    overflow: visible;\n    filter: drop-shadow(0 8px 16px rgba(122, 91, 45, 0.16));\n  }\n\n  .t4s-icon-line {\n    fill: none;\n    stroke: currentColor;\n    stroke-width: 2.15;\n    stroke-linecap: round;\n    stroke-linejoin: round;\n  }\n\n  .t4s-icon-pulse {\n    animation: t4sIconPulse 2.4s ease-in-out infinite;\n    transform-origin: center;\n  }\n\n  .t4s-icon-float {\n    animation: t4sIconFloat 3.4s ease-in-out infinite;\n  }\n\n  .t4s-icon-rotate {\n    animation: t4sIconRotate 5.8s linear infinite;\n    transform-origin: center;\n  }\n\n  .t4s-icon-wave {\n    animation: t4sIconWave 2.1s ease-in-out infinite;\n  }\n\n  .t4s-icon-draw {\n    stroke-dasharray: 80;\n    stroke-dashoffset: 80;\n    animation: t4sIconDraw 2.5s ease-in-out infinite;\n  }\n\n  .t4s-section-heading {\n    display: flex;\n    align-items: center;\n    gap: 18px;\n    background: #fbf8f3;\n    border: 1px solid #eadfce;\n    border-left: 6px solid #b78b4a;\n    border-radius: 18px;\n    padding: 18px 20px;\n    box-shadow: 0 10px 26px rgba(0, 0, 0, 0.035);\n  }\n\n  .t4s-section-heading .t4s-icon {\n    width: 52px;\n    height: 52px;\n    margin-bottom: 0;\n  }\n\n  .t4s-section-heading .t4s-icon svg {\n    width: 52px;\n    height: 52px;\n  }\n\n  .t4s-feature-block .t4s-icon,\n  .t4s-fit-card .t4s-icon {\n    margin-bottom: 14px;\n  }\n\n  .t4s-feature-block .t4s-icon {\n    width: 76px;\n    height: 76px;\n  }\n\n  .t4s-feature-block .t4s-icon svg {\n    width: 76px;\n    height: 76px;\n  }\n\n  .t4s-visual-feature {\n    display: grid;\n    grid-template-columns: 86px 1fr;\n    gap: 22px;\n    align-items: start;\n  }\n\n  .t4s-visual-feature .t4s-icon {\n    margin-top: 2px;\n    margin-bottom: 0;\n  }\n\n  .t4s-visual-feature h3 {\n    margin-top: 0;\n  }\n\n  @keyframes t4sIconPulse {\n    0%, 100% { transform: scale(1); opacity: 0.95; }\n    50% { transform: scale(1.08); opacity: 1; }\n  }\n\n  @keyframes t4sIconFloat {\n    0%, 100% { transform: translateY(0); }\n    50% { transform: translateY(-5px); }\n  }\n\n  @keyframes t4sIconRotate {\n    from { transform: rotate(0deg); }\n    to { transform: rotate(360deg); }\n  }\n\n  @keyframes t4sIconWave {\n    0%, 100% { transform: translateX(0); }\n    50% { transform: translateX(4px); }\n  }\n\n  @keyframes t4sIconDraw {\n    0% { stroke-dashoffset: 80; opacity: 0.45; }\n    45%, 70% { stroke-dashoffset: 0; opacity: 1; }\n    100% { stroke-dashoffset: 80; opacity: 0.45; }\n  }\n\n  @media (prefers-reduced-motion: reduce) {\n    .t4s-icon-pulse,\n    .t4s-icon-float,\n    .t4s-icon-rotate,\n    .t4s-icon-wave,\n    .t4s-icon-draw {\n      animation: none !important;\n    }\n  }\n\n  @media (max-width: 820px) {\n    .t4s-summary-grid,\n    .t4s-benefit-grid,\n    .t4s-two-column {\n      grid-template-columns: 1fr;\n    }\n\n    .t4s-visual-feature {\n      grid-template-columns: 1fr;\n    }\n\n    .t4s-tab-content {\n      font-size: 16px;\n      padding: 20px 14px;\n    }\n\n    .t4s-tab-content h1 {\n      font-size: 30px;\n    }\n\n    .t4s-tab-content h2 {\n      font-size: 23px;\n    }\n\n    .t4s-hero-panel {\n      padding: 28px 22px;\n    }\n\n    .t4s-cta-secondary {\n      width: 100%;\n      text-align: center;\n      justify-content: center;\n    }\n\n    .t4s-summary-card {\n      min-height: auto;\n      padding: 26px 22px;\n    }\n\n    .t4s-summary-card .t4s-icon {\n      top: 22px;\n      right: 22px;\n    }\n\n    .t4s-tab-content table {\n      min-width: 640px;\n    }\n\n    .t4s-tab-content th,\n    .t4s-tab-content td {\n      padding: 15px 16px;\n    }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"t4s-tab-content\"\u003e\n\u003ch1\u003eOsaki Duke XL 4D\u003c\/h1\u003e\n\u003cdiv class=\"t4s-summary-grid\"\u003e\n\u003cdiv class=\"t4s-summary-card\"\u003e\n\u003cspan class=\"t4s-icon\"\u003e \u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 48 48\"\u003e\n\u003cpath d=\"M24 12v24\" class=\"t4s-icon-line t4s-icon-float\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M31 17c-2-2-10-3-12 1-3 6 14 4 11 11-2 5-11 4-14 1\" class=\"t4s-icon-line\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e \u003c\/span\u003e \u003cspan class=\"t4s-summary-label\"\u003eSale Price\u003c\/span\u003e \u003cspan class=\"t4s-summary-value\"\u003e$6,999.00\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"t4s-summary-card\"\u003e\n\u003cspan class=\"t4s-icon\"\u003e \u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 48 48\"\u003e\n\u003cpath d=\"M10 29h4m20 0h4v-7l-5-6h-7v13\" class=\"t4s-icon-line\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M10 16h16v13H10z\" class=\"t4s-icon-line\"\u003e\u003c\/path\u003e\n\u003ccircle r=\"3\" cy=\"32\" cx=\"18\" class=\"t4s-icon-line t4s-icon-rotate\"\u003e\u003c\/circle\u003e\n\u003ccircle r=\"3\" cy=\"32\" cx=\"32\" class=\"t4s-icon-line t4s-icon-rotate\"\u003e\u003c\/circle\u003e\n\u003c\/svg\u003e \u003c\/span\u003e \u003cspan class=\"t4s-summary-label\"\u003eCapacity\u003c\/span\u003e \u003cspan class=\"t4s-summary-value\"\u003eUp to 400 lb \u0026amp; Users Up to 6'8\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"t4s-summary-card\"\u003e\n\u003cspan class=\"t4s-icon\"\u003e \u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 48 48\"\u003e\n\u003cpath d=\"M24 10l13 5v8c0 9-5 14-13 17-8-3-13-8-13-17v-8l13-5z\" class=\"t4s-icon-line\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M17 24l5 5 10-11\" class=\"t4s-icon-line t4s-icon-draw\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e \u003c\/span\u003e \u003cspan class=\"t4s-summary-label\"\u003eWarranty\u003c\/span\u003e \u003cspan class=\"t4s-summary-value\"\u003eCurrent Osaki Offer: 2-Year Extended Parts \u0026amp; Labor\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"t4s-summary-card\"\u003e\n\u003cspan class=\"t4s-icon\"\u003e \u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 48 48\"\u003e\n\u003ccircle r=\"5\" cy=\"20\" cx=\"18\" class=\"t4s-icon-line t4s-icon-pulse\"\u003e\u003c\/circle\u003e\n\u003ccircle r=\"5\" cy=\"19\" cx=\"29\" class=\"t4s-icon-line t4s-icon-pulse\"\u003e\u003c\/circle\u003e\n\u003ccircle r=\"5\" cy=\"30\" cx=\"24\" class=\"t4s-icon-line t4s-icon-pulse\"\u003e\u003c\/circle\u003e\n\u003c\/svg\u003e \u003c\/span\u003e \u003cspan class=\"t4s-summary-label\"\u003eColors\u003c\/span\u003e \u003cspan class=\"t4s-summary-value\"\u003eBlack \u0026amp; Taupe\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cfigure class=\"t4s-image-block hero-image\"\u003e\n\u003cdiv class=\"t4s-image-frame hero-frame\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0649\/9516\/4367\/files\/osaki-duke-xl-4d-hero-home-lifestyle.png?v=1787576897\" loading=\"eager\" decoding=\"async\" alt=\"Osaki Duke XL 4D massage chair shown in a modern home interior from a front three-quarter angle.\"\u003e\u003c\/div\u003e\n\u003cfigcaption class=\"t4s-image-caption\"\u003eThe Osaki Duke XL 4D combines an oversized, size-accommodating frame with advanced 4D massage technology in a premium home-ready design.\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003cdiv class=\"t4s-hero-panel\"\u003e\n\u003cspan class=\"t4s-hero-eyebrow\"\u003eOsaki Massage Chair • 4D Mechanism • XL Design • SL-Flex Track • Zero Gravity\u003c\/span\u003e\n\u003cp\u003e\u003cstrong\u003eThe Osaki Duke XL 4D is designed for buyers who have found conventional massage chairs too restrictive.\u003c\/strong\u003e Its size-accommodating chassis supports users up to 400 lb and up to 6'8\", while a 4D massage mechanism, body scan technology, SL-Flex Track system, 48-cell air compression, deep calf massage, and three specialized foot rollers create a feature-rich full-body massage experience.\u003c\/p\u003e\n\u003cp\u003eJust as important, the Duke XL does not treat the larger frame as its only selling point. It adds a touchscreen controller, shortcut controls, USB-C charging, Bluetooth speakers, heating shawl therapy, Intelligent Health Detection, zero gravity reclining, and 20 automatic programs — making it a serious premium option for buyers who want both roomier fit and modern massage technology.\u003c\/p\u003e\n\u003cdiv class=\"t4s-cta-row\"\u003e\n\u003ca href=\"https:\/\/houseofmassagechairs.com\/collections\/osaki\" class=\"t4s-cta-secondary t4s-cta-light\"\u003eCompare Osaki Chairs\u003c\/a\u003e \u003ca href=\"https:\/\/houseofmassagechairs.com\/collections\/massage-chairs\" class=\"t4s-cta-secondary t4s-cta-light\"\u003eCompare All Massage Chairs\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003e\u003cspan class=\"t4s-section-heading\"\u003e \u003cspan class=\"t4s-icon\"\u003e \u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 48 48\"\u003e\n\u003cpath d=\"M14 12h20v24H14z\" class=\"t4s-icon-line\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M18 18h12M18 24h12M18 30h8\" class=\"t4s-icon-line t4s-icon-draw\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e \u003c\/span\u003e \u003cspan\u003eTechnical Specs \u0026amp; Verified Product Details\u003c\/span\u003e \u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eThe specifications below are the practical numbers to review before ordering the Osaki Duke XL 4D. Because this chair is specifically designed around a larger seating area and higher user capacity, room measurements and delivery access deserve as much attention as the massage features themselves.\u003c\/p\u003e\n\u003cdiv class=\"t4s-tab-table-wrapper\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eOsaki Duke XL 4D Details\u003c\/th\u003e\n\u003cth\u003eWhy It Matters\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eOsaki\u003c\/td\u003e\n\u003ctd\u003eA broad premium massage-chair line with multiple 4D, XL, and technology-focused models.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct Name\u003c\/th\u003e\n\u003ctd\u003eOsaki Duke XL 4D\u003c\/td\u003e\n\u003ctd\u003eAn XL-oriented 4D massage chair engineered around larger-user fit.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer-Listed Price\u003c\/th\u003e\n\u003ctd\u003e$6,999 sale price; $9,999 compare-at price at time of verification\u003c\/td\u003e\n\u003ctd\u003ePlaces the Duke XL 4D in the premium 4D category while emphasizing fit and feature density.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eColor Options\u003c\/th\u003e\n\u003ctd\u003eBlack, Taupe\u003c\/td\u003e\n\u003ctd\u003eTwo neutral finishes designed to work in living rooms, offices, and dedicated wellness spaces.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMassage Mechanism\u003c\/th\u003e\n\u003ctd\u003e4D Massage Mechanism\u003c\/td\u003e\n\u003ctd\u003eAdds adjustable depth, speed, and rhythm for a more variable massage experience than fixed-depth systems.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMassage Track\u003c\/th\u003e\n\u003ctd\u003eSL-Flex Track System\u003c\/td\u003e\n\u003ctd\u003eExtends roller coverage along the back and seat area while supporting changing body positions during recline.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBody Mapping\u003c\/th\u003e\n\u003ctd\u003eBody Scan Technology\u003c\/td\u003e\n\u003ctd\u003eHelps align the massage mechanism to the user's body before the session begins.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAutomatic Programs\u003c\/th\u003e\n\u003ctd\u003e20 Auto Programs\u003c\/td\u003e\n\u003ctd\u003eProvides ready-to-use massage routines without requiring manual adjustment every session.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManual Programs\u003c\/th\u003e\n\u003ctd\u003e5 Manual Modes\u003c\/td\u003e\n\u003ctd\u003eLets users move beyond preset routines and customize the massage experience.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAir Massage\u003c\/th\u003e\n\u003ctd\u003e48-Cell Air Compression Massage\u003c\/td\u003e\n\u003ctd\u003eAdds compression around body zones that roller mechanisms alone cannot fully surround.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLower-Body Massage\u003c\/th\u003e\n\u003ctd\u003eDeep Calf Massage + 3 Specialized Foot Rollers\u003c\/td\u003e\n\u003ctd\u003eMakes the lower-body experience a central feature rather than an afterthought.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFootrest\u003c\/th\u003e\n\u003ctd\u003eSpring-Loaded Extendable Footrest; up to approximately 7\" extension\u003c\/td\u003e\n\u003ctd\u003eHelps accommodate longer legs and supports the Duke XL's taller-user design.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecline\u003c\/th\u003e\n\u003ctd\u003eZero Gravity Reclining\u003c\/td\u003e\n\u003ctd\u003eCreates a supported reclined position for a more relaxed full-body session.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeat\u003c\/th\u003e\n\u003ctd\u003eHeating Shawl Therapy with published heat coverage for the lumbar, feet, chest, and abdomen areas\u003c\/td\u003e\n\u003ctd\u003eAdds warming comfort and allows heat to complement the roller and air-compression massage.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControls\u003c\/th\u003e\n\u003ctd\u003eTouchscreen Controller + Shortcut Panels\u003c\/td\u003e\n\u003ctd\u003eProvides full program access through the screen while keeping common adjustments within quick reach.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDevice Charging\u003c\/th\u003e\n\u003ctd\u003eUSB-C Charging Port\u003c\/td\u003e\n\u003ctd\u003eLets users keep a compatible device powered during longer sessions.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAudio\u003c\/th\u003e\n\u003ctd\u003eIntegrated Bluetooth Speakers\u003c\/td\u003e\n\u003ctd\u003eSupports music, podcasts, or relaxing audio directly from a connected device.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLighting\u003c\/th\u003e\n\u003ctd\u003eLED Lighting Detail\u003c\/td\u003e\n\u003ctd\u003eAdds subtle ambient lighting around the chair's premium exterior design.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUser Height\u003c\/th\u003e\n\u003ctd\u003eUp to 6'8\"\u003c\/td\u003e\n\u003ctd\u003eA key reason to consider the Duke XL if ordinary massage chairs feel short through the back or leg section.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaximum User Weight\u003c\/th\u003e\n\u003ctd\u003e400 lb\u003c\/td\u003e\n\u003ctd\u003eSignificantly expands fit potential for users who exceed the capacity of many standard massage chairs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeat Width\u003c\/th\u003e\n\u003ctd\u003e23\"\u003c\/td\u003e\n\u003ctd\u003eProvides more usable seating room for broader users.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShoulder Width\u003c\/th\u003e\n\u003ctd\u003e26\"\u003c\/td\u003e\n\u003ctd\u003eHelps prevent the upper body from feeling boxed in by narrow shoulder structures.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUpright Dimensions\u003c\/th\u003e\n\u003ctd\u003e35\" W × 60\" L × 45\" H\u003c\/td\u003e\n\u003ctd\u003eUse these measurements when planning the chair's everyday placement.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReclined Dimensions\u003c\/th\u003e\n\u003ctd\u003e35\" W × 67\" L × 37\" H\u003c\/td\u003e\n\u003ctd\u003eMeasure the full reclined footprint before delivery.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eChair Weight\u003c\/th\u003e\n\u003ctd\u003e325.6 lb\u003c\/td\u003e\n\u003ctd\u003eImportant for delivery planning, stairs, elevators, flooring, and future relocation.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum Doorway\u003c\/th\u003e\n\u003ctd\u003e35\" assembled \/ 28\" disassembled\u003c\/td\u003e\n\u003ctd\u003eUseful for determining whether the chair can reach its intended room before delivery day.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003ctd\u003e110–120V, 50\/60Hz\u003c\/td\u003e\n\u003ctd\u003eDesigned for standard U.S. residential electrical service.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003e\u003cspan class=\"t4s-section-heading\"\u003e \u003cspan class=\"t4s-icon\"\u003e \u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 48 48\"\u003e\n\u003cpath d=\"M24 11c4 0 7 3 7 7s-3 7-7 7-7-3-7-7 3-7 7-7z\" class=\"t4s-icon-line\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M18 37c1-7 3-10 6-10s5 3 6 10\" class=\"t4s-icon-line\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M12 23c3 2 6 2 9 0\" class=\"t4s-icon-line t4s-icon-wave\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M27 23c3 2 6 2 9 0\" class=\"t4s-icon-line t4s-icon-wave\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e \u003c\/span\u003e \u003cspan\u003eWhy The Osaki Duke XL 4D Deserves A Closer Look\u003c\/span\u003e \u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eThe defining question for the Duke XL 4D is not simply whether it has advanced massage technology. It is whether that technology is packaged inside a chair that gives larger and taller users enough room to actually enjoy it.\u003c\/p\u003e\n\u003cfigure class=\"t4s-image-block feature-image\"\u003e\n\u003cdiv class=\"t4s-image-frame feature-frame\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0649\/9516\/4367\/files\/osaki-duke-xl-4d-size-accommodating-design.png?v=1787577036\" loading=\"lazy\" decoding=\"async\" alt=\"Tall adult seated comfortably in the Osaki Duke XL 4D massage chair, showing the chair’s spacious XL design.\"\u003e\u003c\/div\u003e\n\u003cfigcaption class=\"t4s-image-caption\"\u003eThe XL frame supports users up to 400 lb and up to 6'8\", with a 23-inch seat and 26-inch shoulder width for a roomier fit.\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003cp\u003eThe Duke XL addresses that issue with a 400 lb weight capacity, support for users up to 6'8\", a 23-inch seat, 26-inch shoulder width, and an extendable lower-body section. That makes fit one of the chair's genuine product advantages rather than a marketing afterthought.\u003c\/p\u003e\n\u003cp\u003eOnce fit is solved, the rest of the feature set becomes much more compelling: a 4D mechanism for adjustable depth and rhythm, body scanning for alignment, a flexible SL-style track, 48-cell air compression, zero gravity, deep calf work, three specialized foot rollers, heat, and a modern touchscreen control system.\u003c\/p\u003e\n\u003cdiv class=\"t4s-benefit-grid\"\u003e\n\u003cdiv class=\"t4s-benefit-card\"\u003e\n\u003cstrong\u003eXL user accommodation\u003c\/strong\u003e Up to 400 lb and up to 6'8\", with wider seating and shoulder dimensions than many conventional massage chairs.\u003c\/div\u003e\n\u003cdiv class=\"t4s-benefit-card\"\u003e\n\u003cstrong\u003e4D massage mechanism\u003c\/strong\u003e Adjustable depth, speed, and rhythm provide more variation than fixed-depth massage systems.\u003c\/div\u003e\n\u003cdiv class=\"t4s-benefit-card\"\u003e\n\u003cstrong\u003eSL-Flex Track\u003c\/strong\u003e Extends massage coverage through the back and seat area while supporting reclined positioning.\u003c\/div\u003e\n\u003cdiv class=\"t4s-benefit-card\"\u003e\n\u003cstrong\u003e48-cell air compression\u003c\/strong\u003e Adds enveloping compression around multiple body zones to complement the rollers.\u003c\/div\u003e\n\u003cdiv class=\"t4s-benefit-card\"\u003e\n\u003cstrong\u003eLower-body focus\u003c\/strong\u003e Deep calf massage, specialized foot rollers, and an extendable footrest make the leg and foot section a major strength.\u003c\/div\u003e\n\u003cdiv class=\"t4s-benefit-card\"\u003e\n\u003cstrong\u003eModern daily controls\u003c\/strong\u003e Touchscreen operation, shortcut controls, USB-C charging, Bluetooth speakers, and LED lighting make the chair easier to live with.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"t4s-callout\"\u003e\n\u003cp\u003e\u003cstrong\u003eBuyer takeaway:\u003c\/strong\u003e The Duke XL 4D makes the most sense when body fit is just as important as massage technology. Its strongest distinction is the combination of an XL chassis and premium 4D feature set in the same chair.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003e\u003cspan class=\"t4s-section-heading\"\u003e \u003cspan class=\"t4s-icon\"\u003e \u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 48 48\"\u003e\n\u003cpath d=\"M16 12v24M32 12v24\" class=\"t4s-icon-line\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M10 20h28\" class=\"t4s-icon-line t4s-icon-wave\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M38 20l-5-5M38 20l-5 5\" class=\"t4s-icon-line t4s-icon-wave\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M38 29H10\" class=\"t4s-icon-line t4s-icon-wave\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M10 29l5-5M10 29l5 5\" class=\"t4s-icon-line t4s-icon-wave\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e \u003c\/span\u003e \u003cspan\u003eKey Features, Explained For Real-World Use\u003c\/span\u003e \u003c\/span\u003e\u003c\/h2\u003e\n\u003cdiv class=\"t4s-feature-block\"\u003e\n\u003cdiv class=\"t4s-visual-feature\"\u003e\n\u003cspan class=\"t4s-icon\"\u003e \u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 48 48\"\u003e\n\u003ccircle r=\"5\" cy=\"20\" cx=\"18\" class=\"t4s-icon-line t4s-icon-pulse\"\u003e\u003c\/circle\u003e\n\u003ccircle r=\"5\" cy=\"19\" cx=\"29\" class=\"t4s-icon-line t4s-icon-pulse\"\u003e\u003c\/circle\u003e\n\u003ccircle r=\"5\" cy=\"30\" cx=\"24\" class=\"t4s-icon-line t4s-icon-pulse\"\u003e\u003c\/circle\u003e\n\u003c\/svg\u003e \u003c\/span\u003e\n\u003cdiv\u003e\n\u003ch3\u003e4D Massage Mechanism + Body Scan Technology\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eTechnology:\u003c\/strong\u003e The Duke XL uses a 4D massage mechanism together with automatic body scanning. The roller system can vary massage depth, speed, and rhythm instead of following one fixed-feeling pattern.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat it does:\u003c\/strong\u003e The body scan helps establish where the user's shoulders and back sit before the program runs, while the 4D mechanism provides greater control over how the massage feels.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy it matters:\u003c\/strong\u003e On an XL chair used by people of different heights and builds, correct roller positioning is especially important. Better alignment helps the technology work with the user rather than forcing the user to fit the chair.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"t4s-feature-block\"\u003e\n\u003cdiv class=\"t4s-visual-feature\"\u003e\n\u003cspan class=\"t4s-icon\"\u003e \u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 48 48\"\u003e\n\u003cpath d=\"M16 12v24M32 12v24\" class=\"t4s-icon-line\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M10 20h28\" class=\"t4s-icon-line t4s-icon-wave\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M38 20l-5-5M38 20l-5 5\" class=\"t4s-icon-line t4s-icon-wave\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M38 29H10\" class=\"t4s-icon-line t4s-icon-wave\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e \u003c\/span\u003e\n\u003cdiv\u003e\n\u003ch3\u003eSL-Flex Track System\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eTechnology:\u003c\/strong\u003e Osaki pairs the 4D mechanism with an SL-Flex Track designed to maintain extended roller coverage through the back and toward the seat area while accommodating changes in chair position.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat it does:\u003c\/strong\u003e The track gives the rollers a longer working path than a short back-only mechanism and supports the body as the chair reclines.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy it matters:\u003c\/strong\u003e Buyers who want more than shoulder-to-lumbar coverage should pay attention to track design. The Duke XL is built around a full-body seating experience rather than a short roller path inside an oversized shell.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"t4s-feature-block\"\u003e\n\u003cdiv class=\"t4s-visual-feature\"\u003e\n\u003cspan class=\"t4s-icon\"\u003e \u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 48 48\"\u003e\n\u003cpath d=\"M11 18h18c4 0 4-6 0-6-2 0-3 1-4 3\" class=\"t4s-icon-line t4s-icon-wave\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M10 25h25c5 0 5 7 0 7-2 0-4-1-5-3\" class=\"t4s-icon-line t4s-icon-wave\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M14 35h13\" class=\"t4s-icon-line t4s-icon-wave\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e \u003c\/span\u003e\n\u003cdiv\u003e\n\u003cfigure class=\"t4s-image-block feature-image\"\u003e\n\u003cdiv class=\"t4s-image-frame feature-frame\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0649\/9516\/4367\/files\/osaki-duke-xl-4d-foot-calf-massage-system.png?v=1787577061\" loading=\"lazy\" decoding=\"async\" alt=\"Close view of the Osaki Duke XL 4D foot and calf massage section with a user’s legs positioned inside the chair.\"\u003e\u003c\/div\u003e\n\u003cfigcaption class=\"t4s-image-caption\"\u003eDeep calf massage, three specialized foot rollers, and an extendable footrest give the Duke XL 4D a lower-body system designed to match its larger frame.\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDeep Calf Massage + Three Specialized Foot Rollers\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eTechnology:\u003c\/strong\u003e The Duke XL combines dedicated calf compression with three specialized rollers beneath each foot and a spring-loaded extendable footrest.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat it does:\u003c\/strong\u003e Air compression holds and works the lower legs while the rollers provide active contact beneath the soles. The footrest can extend to accommodate longer legs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy it matters:\u003c\/strong\u003e Tall users can fit well through the shoulders and still be uncomfortable if the legrest is too short. The Duke XL's lower-body design is built to make the XL concept continue all the way to the feet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"t4s-feature-block\"\u003e\n\u003cdiv class=\"t4s-visual-feature\"\u003e\n\u003cspan class=\"t4s-icon\"\u003e \u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 48 48\"\u003e\n\u003cpath d=\"M12 31h24\" class=\"t4s-icon-line\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M16 31V18h11c4 0 7 3 7 7v6\" class=\"t4s-icon-line\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M14 37h7\" class=\"t4s-icon-line t4s-icon-wave\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M27 37h7\" class=\"t4s-icon-line t4s-icon-wave\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e \u003c\/span\u003e\n\u003cdiv\u003e\n\u003cfigure class=\"t4s-image-block feature-image\"\u003e\n\u003cdiv class=\"t4s-image-frame feature-frame\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0649\/9516\/4367\/files\/osaki-duke-xl-4d-zero-gravity-recline.png?v=1787577113\" loading=\"lazy\" decoding=\"async\" alt=\"Osaki Duke XL 4D massage chair shown in a zero gravity reclined position from a side angle.\"\u003e\u003c\/div\u003e\n\u003cfigcaption class=\"t4s-image-caption\"\u003eZero gravity reclining changes the body's relationship to the rollers and air cells while creating a more supported full-body position.\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eZero Gravity Reclining\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eTechnology:\u003c\/strong\u003e The Duke XL includes powered zero gravity reclining.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat it does:\u003c\/strong\u003e The chair shifts the body into a more reclined, supported position while keeping the user aligned with the massage system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy it matters:\u003c\/strong\u003e Recline is not only about comfort. A different body angle changes how the back contacts the rollers and how the legs settle into the calf and foot section, which can make a full-body program feel more immersive.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"t4s-feature-block\"\u003e\n\u003cdiv class=\"t4s-visual-feature\"\u003e\n\u003cspan class=\"t4s-icon\"\u003e \u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 48 48\"\u003e\n\u003cpath d=\"M18 34c-4-5 3-8 0-13-2-4 1-7 3-9\" class=\"t4s-icon-line t4s-icon-float\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M26 35c-4-5 3-9 0-14-2-4 1-7 3-10\" class=\"t4s-icon-line t4s-icon-float\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M34 34c-3-4 2-7 0-11\" class=\"t4s-icon-line t4s-icon-float\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e \u003c\/span\u003e\n\u003cdiv\u003e\n\u003ch3\u003eHeating Shawl + 48-Cell Air Compression\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eTechnology:\u003c\/strong\u003e The Duke XL pairs a movable heating shawl system with 48-cell air compression massage. Published specifications describe heat application around areas including the lumbar region, feet, chest, and abdomen depending on shawl positioning.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat it does:\u003c\/strong\u003e The shawl adds warming comfort while air cells inflate and release around the body to complement the roller mechanism.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy it matters:\u003c\/strong\u003e Rollers provide concentrated mechanical contact; air compression creates a broader wrapped sensation. Combining the two gives a session more variety without relying on the rollers for every part of the experience.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"t4s-feature-block\"\u003e\n\u003cdiv class=\"t4s-visual-feature\"\u003e\n\u003cspan class=\"t4s-icon\"\u003e \u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 48 48\"\u003e\n\u003cpath d=\"M14 12h20v24H14z\" class=\"t4s-icon-line\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M18 18h12M18 24h12M18 30h8\" class=\"t4s-icon-line t4s-icon-draw\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e \u003c\/span\u003e\n\u003cdiv\u003e\n\u003cfigure class=\"t4s-image-block feature-image\"\u003e\n\u003cdiv class=\"t4s-image-frame feature-frame\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0649\/9516\/4367\/files\/osaki-duke-xl-4d-touchscreen-controller-controls.png?v=1787578000\" loading=\"lazy\" decoding=\"async\" alt=\"Close view of the Osaki Duke XL 4D touchscreen controller and armrest shortcut controls in use.\"\u003e\u003c\/div\u003e\n\u003cfigcaption class=\"t4s-image-caption\"\u003eA touchscreen controller handles the full feature set while integrated shortcut buttons keep common adjustments within easy reach.\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eTouchscreen Controller + Shortcut Controls\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eTechnology:\u003c\/strong\u003e The Duke XL uses a mounted touchscreen controller together with integrated shortcut controls on the armrest.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat it does:\u003c\/strong\u003e The touchscreen gives access to 20 automatic programs, five manual modes, and chair settings, while the shortcut panel reduces the need to navigate menus for common adjustments.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy it matters:\u003c\/strong\u003e Feature-rich chairs can become frustrating when the controls are harder to use than the massage itself. The combination of a large touchscreen and physical shortcuts makes the Duke XL easier to operate repeatedly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"t4s-feature-block\"\u003e\n\u003cdiv class=\"t4s-visual-feature\"\u003e\n\u003cspan class=\"t4s-icon\"\u003e \u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 48 48\"\u003e\n\u003cpath d=\"M24 36c-6-4-11-8-11-14 0-4 3-7 7-7 2 0 3 1 4 2 1-1 2-2 4-2 4 0 7 3 7 7 0 6-5 10-11 14z\" class=\"t4s-icon-line t4s-icon-pulse\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e \u003c\/span\u003e\n\u003cdiv\u003e\n\u003ch3\u003eIntelligent Health Detection\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eTechnology:\u003c\/strong\u003e Osaki lists Intelligent Health Detection as part of the Duke XL 4D's smart feature set.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat it does:\u003c\/strong\u003e It adds wellness-oriented sensing and on-screen information to the chair experience alongside the separate body scan used for massage positioning.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy it matters:\u003c\/strong\u003e For technology-focused shoppers, it adds another layer of personalization and feedback beyond simply selecting a massage program.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Treat any health or wellness readings as informational only. The Duke XL 4D is a consumer massage chair, not a substitute for medical monitoring, diagnosis, or professional healthcare advice.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003e\u003cspan class=\"t4s-section-heading\"\u003e \u003cspan class=\"t4s-icon\"\u003e \u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 48 48\"\u003e\n\u003cpath d=\"M15 23l8-8 8 8v13H15z\" class=\"t4s-icon-line\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M20 36v-8h8v8\" class=\"t4s-icon-line\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M34 18l3 3M11 21l3-3\" class=\"t4s-icon-line t4s-icon-pulse\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e \u003c\/span\u003e \u003cspan\u003eTechnology That Makes Daily Use Easier\u003c\/span\u003e \u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eThe Duke XL 4D carries more convenience technology than its large-frame positioning might suggest. Bluetooth speakers let you pair personal audio with a session, the USB-C port provides device charging, LED lighting adds a subtle visual accent, and the shortcut panel keeps essential chair functions accessible without repeatedly returning to the touchscreen.\u003c\/p\u003e\n\u003cp\u003eThe result is a chair designed not only for a strong first demonstration, but for routine use. That distinction matters: advanced hardware only creates value when the user can comfortably fit the chair, start a program quickly, adjust it easily, and return to it without friction.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan class=\"t4s-section-heading\"\u003e \u003cspan class=\"t4s-icon\"\u003e \u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 48 48\"\u003e\n\u003cpath d=\"M18 34c-4-5 3-8 0-13-2-4 1-7 3-9\" class=\"t4s-icon-line t4s-icon-float\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M26 35c-4-5 3-9 0-14-2-4 1-7 3-10\" class=\"t4s-icon-line t4s-icon-float\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M34 34c-3-4 2-7 0-11\" class=\"t4s-icon-line t4s-icon-float\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e \u003c\/span\u003e \u003cspan\u003eWhat You Are Likely To Notice First\u003c\/span\u003e \u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eThe chair feels substantially roomier through the seat and shoulders than many conventional massage-chair shells.\u003c\/li\u003e\n\u003cli\u003eBody scanning helps establish the massage position before the main roller program begins.\u003c\/li\u003e\n\u003cli\u003eThe 4D mechanism gives you more control over intensity and massage character than a fixed-depth roller system.\u003c\/li\u003e\n\u003cli\u003eThe lower-body section feels intentionally developed, with calf compression, three foot rollers, and a longer-user-friendly footrest.\u003c\/li\u003e\n\u003cli\u003eThe heating shawl adds a different kind of comfort than fixed lumbar-only heat.\u003c\/li\u003e\n\u003cli\u003eThe touchscreen provides the full feature set while shortcut buttons make mid-session changes easier.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan class=\"t4s-section-heading\"\u003e \u003cspan class=\"t4s-icon\"\u003e \u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 48 48\"\u003e\n\u003cpath d=\"M12 31h24\" class=\"t4s-icon-line\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M16 31V18h11c4 0 7 3 7 7v6\" class=\"t4s-icon-line\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M14 37h7\" class=\"t4s-icon-line t4s-icon-wave\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M27 37h7\" class=\"t4s-icon-line t4s-icon-wave\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e \u003c\/span\u003e \u003cspan\u003eWho Is The Osaki Duke XL 4D Best For?\u003c\/span\u003e \u003c\/span\u003e\u003c\/h2\u003e\n\u003cdiv class=\"t4s-two-column\"\u003e\n\u003cdiv class=\"t4s-fit-card good\"\u003e\n\u003cspan class=\"t4s-icon\"\u003e \u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 48 48\"\u003e\n\u003cpath d=\"M24 10l13 5v8c0 9-5 14-13 17-8-3-13-8-13-17v-8l13-5z\" class=\"t4s-icon-line\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M17 24l5 5 10-11\" class=\"t4s-icon-line t4s-icon-draw\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e \u003c\/span\u003e\n\u003ch3\u003eBest For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTaller users who need a massage chair designed to accommodate heights up to 6'8\".\u003c\/li\u003e\n\u003cli\u003eLarger users who need a published weight capacity up to 400 lb.\u003c\/li\u003e\n\u003cli\u003eBroad-shouldered shoppers who often feel squeezed by narrow massage-chair shells.\u003c\/li\u003e\n\u003cli\u003eBuyers who want 4D massage rather than choosing size accommodation at the expense of advanced roller technology.\u003c\/li\u003e\n\u003cli\u003ePeople who prioritize calf and foot massage as much as back massage.\u003c\/li\u003e\n\u003cli\u003eHouseholds that value touchscreen controls, Bluetooth audio, USB-C charging, and convenient shortcut buttons.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"t4s-fit-card caution\"\u003e\n\u003cspan class=\"t4s-icon\"\u003e \u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 48 48\"\u003e\n\u003cpath d=\"M16 12v24M32 12v24\" class=\"t4s-icon-line\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M10 20h28\" class=\"t4s-icon-line t4s-icon-wave\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M38 20l-5-5M38 20l-5 5\" class=\"t4s-icon-line t4s-icon-wave\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e \u003c\/span\u003e\n\u003ch3\u003eNot Ideal If\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou specifically need a small or lightweight massage chair for a tight room.\u003c\/li\u003e\n\u003cli\u003eYour delivery route cannot comfortably accommodate a chair weighing approximately 325.6 lb.\u003c\/li\u003e\n\u003cli\u003eYou prefer a very simple chair with only a few programs and a basic handheld remote.\u003c\/li\u003e\n\u003cli\u003eYou do not need an XL frame and would rather prioritize a smaller footprint.\u003c\/li\u003e\n\u003cli\u003eYou expect wellness sensors or massage features to replace medical evaluation or treatment.\u003c\/li\u003e\n\u003cli\u003eYou are purchasing without confirming doorway, room, and reclined dimensions first.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003e\u003cspan class=\"t4s-section-heading\"\u003e \u003cspan class=\"t4s-icon\"\u003e \u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 48 48\"\u003e\n\u003cpath d=\"M16 12v24M32 12v24\" class=\"t4s-icon-line\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M10 20h28\" class=\"t4s-icon-line t4s-icon-wave\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M38 20l-5-5M38 20l-5 5\" class=\"t4s-icon-line t4s-icon-wave\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M38 29H10\" class=\"t4s-icon-line t4s-icon-wave\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e \u003c\/span\u003e \u003cspan\u003eHow To Compare The Duke XL 4D With Other Massage Chairs\u003c\/span\u003e \u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eThe Duke XL 4D should primarily be compared against other premium 4D massage chairs and larger-user models. The question is not which chair has the longest feature list — it is which chair gives your body the right combination of fit, massage feel, lower-body comfort, and room compatibility.\u003c\/p\u003e\n\u003cdiv class=\"t4s-tab-table-wrapper\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eShopping Priority\u003c\/th\u003e\n\u003cth\u003eDuke XL 4D Position\u003c\/th\u003e\n\u003cth\u003eWhat To Compare\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eTall-user fit\u003c\/th\u003e\n\u003ctd\u003eMajor strength — published support for users up to 6'8\".\u003c\/td\u003e\n\u003ctd\u003eCompare shoulder alignment, head position, and full leg extension in another XL model.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHigher weight capacity\u003c\/th\u003e\n\u003ctd\u003eMajor strength — up to 400 lb.\u003c\/td\u003e\n\u003ctd\u003eCompare both stated capacity and actual seat\/shoulder comfort.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e4D massage\u003c\/th\u003e\n\u003ctd\u003eStrong fit — 4D mechanism plus body scan.\u003c\/td\u003e\n\u003ctd\u003eCompare actual roller intensity and rhythm rather than relying on the 4D label alone.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFoot \u0026amp; calf massage\u003c\/th\u003e\n\u003ctd\u003eStrong fit — deep calf massage and three specialized foot rollers.\u003c\/td\u003e\n\u003ctd\u003eTest footwell size, calf fit, and roller intensity with your own legs and feet.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAir compression\u003c\/th\u003e\n\u003ctd\u003e48-cell system.\u003c\/td\u003e\n\u003ctd\u003eCompare not only air-cell count, but also which zones contact your body effectively.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSmart controls\u003c\/th\u003e\n\u003ctd\u003eTouchscreen, shortcuts, USB-C, Bluetooth, and health-detection features.\u003c\/td\u003e\n\u003ctd\u003eDecide whether you prefer feature-rich controls or a simpler everyday interface.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoom efficiency\u003c\/th\u003e\n\u003ctd\u003eFull-size XL chair.\u003c\/td\u003e\n\u003ctd\u003eMeasure 35\" × 67\" for the published reclined footprint and confirm delivery access.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"t4s-soft-callout\"\u003e\n\u003cp\u003e\u003cstrong\u003eComparison tip:\u003c\/strong\u003e Use the \u003ca href=\"https:\/\/houseofmassagechairs.com\/pages\/best-4d-massage-chairs-compared\"\u003ebest 4D massage chairs comparison\u003c\/a\u003e to build a shortlist, then compare the Duke XL against chairs with similar roller technology and a body fit that genuinely works for you.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003e\u003cspan class=\"t4s-section-heading\"\u003e \u003cspan class=\"t4s-icon\"\u003e \u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 48 48\"\u003e\n\u003cpath d=\"M15 23l8-8 8 8v13H15z\" class=\"t4s-icon-line\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M20 36v-8h8v8\" class=\"t4s-icon-line\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M34 18l3 3M11 21l3-3\" class=\"t4s-icon-line t4s-icon-pulse\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e \u003c\/span\u003e \u003cspan\u003eWhy Buy An Osaki Massage Chair From House Of Massage Chairs?\u003c\/span\u003e \u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eA massage chair can look ideal on paper and still feel wrong once you sit in it. That is especially relevant with an XL model, because seat width, shoulder position, calf fit, footrest length, roller alignment, and entry and exit comfort all depend on the individual user.\u003c\/p\u003e\n\u003cp\u003eHouse of Massage Chairs gives shoppers a way to compare Osaki with other premium brands instead of buying from a specification sheet alone. For a specific Duke XL 4D trial, call ahead before visiting because showroom floor inventory can differ from the online assortment.\u003c\/p\u003e\n\u003cdiv class=\"t4s-benefit-grid\"\u003e\n\u003cdiv class=\"t4s-benefit-card\"\u003e\n\u003cstrong\u003eCompare the Osaki lineup\u003c\/strong\u003e Browse current \u003ca href=\"https:\/\/houseofmassagechairs.com\/collections\/osaki\"\u003eOsaki massage chairs\u003c\/a\u003e to see different 4D, XL, AI, and Duo options.\u003c\/div\u003e\n\u003cdiv class=\"t4s-benefit-card\"\u003e\n\u003cstrong\u003eShop across brands\u003c\/strong\u003e Browse all \u003ca href=\"https:\/\/houseofmassagechairs.com\/collections\/massage-chairs\"\u003emassage chairs for sale\u003c\/a\u003e instead of limiting the decision to one manufacturer.\u003c\/div\u003e\n\u003cdiv class=\"t4s-benefit-card\"\u003e\n\u003cstrong\u003eUnderstand brand differences\u003c\/strong\u003e Use the \u003ca href=\"https:\/\/houseofmassagechairs.com\/pages\/massage-chair-brands-compared\"\u003emassage chair brands comparison\u003c\/a\u003e to narrow your shortlist.\u003c\/div\u003e\n\u003cdiv class=\"t4s-benefit-card\"\u003e\n\u003cstrong\u003eCompare advanced 4D chairs\u003c\/strong\u003e Review the \u003ca href=\"https:\/\/houseofmassagechairs.com\/pages\/best-4d-massage-chairs-compared\"\u003ebest 4D massage chairs guide\u003c\/a\u003e before choosing between premium mechanisms.\u003c\/div\u003e\n\u003cdiv class=\"t4s-benefit-card\"\u003e\n\u003cstrong\u003eSan Jose showroom\u003c\/strong\u003e Review the \u003ca href=\"https:\/\/houseofmassagechairs.com\/pages\/san-jose-showroom\"\u003eSan Jose showroom\u003c\/a\u003e details and call ahead to confirm Duke XL 4D availability before traveling.\u003c\/div\u003e\n\u003cdiv class=\"t4s-benefit-card\"\u003e\n\u003cstrong\u003ePleasanton showroom\u003c\/strong\u003e Review the \u003ca href=\"https:\/\/houseofmassagechairs.com\/pages\/pleasanton-showroom\"\u003ePleasanton showroom\u003c\/a\u003e details and confirm the exact model you want to test.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003e\u003cspan class=\"t4s-section-heading\"\u003e \u003cspan class=\"t4s-icon\"\u003e \u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 48 48\"\u003e\n\u003cpath d=\"M14 12h20v24H14z\" class=\"t4s-icon-line\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M18 18h12M18 24h12M18 30h8\" class=\"t4s-icon-line t4s-icon-draw\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e \u003c\/span\u003e \u003cspan\u003eBuying Guidance: When The Duke XL 4D Makes The Most Sense\u003c\/span\u003e \u003c\/span\u003e\u003c\/h2\u003e\n\u003cdiv class=\"t4s-tab-table-wrapper\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYour Priority\u003c\/th\u003e\n\u003cth\u003eWhy The Duke XL 4D Fits\u003c\/th\u003e\n\u003cth\u003eWhat To Verify Before Buying\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMore room through the chair\u003c\/th\u003e\n\u003ctd\u003e23\" seat width, 26\" shoulder width, and an XL chassis.\u003c\/td\u003e\n\u003ctd\u003eConfirm that the chair feels spacious without positioning your arms or shoulders too far from the massage zones.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTall-user compatibility\u003c\/th\u003e\n\u003ctd\u003ePublished fit up to 6'8\" with an extendable footrest.\u003c\/td\u003e\n\u003ctd\u003eCheck head, shoulder, calf, and foot alignment at your actual height.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHigher weight capacity\u003c\/th\u003e\n\u003ctd\u003ePublished maximum of 400 lb.\u003c\/td\u003e\n\u003ctd\u003eStay within the manufacturer's stated limit and confirm comfortable entry and exit.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAdvanced back massage\u003c\/th\u003e\n\u003ctd\u003e4D mechanism, body scan, and SL-Flex Track.\u003c\/td\u003e\n\u003ctd\u003eCompare your preferred intensity against at least one other 4D chair.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLower-body massage\u003c\/th\u003e\n\u003ctd\u003eDeep calf system, three foot rollers, and an extendable footrest.\u003c\/td\u003e\n\u003ctd\u003eTest foot roller intensity and calf fit; these sensations are highly personal.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoom planning\u003c\/th\u003e\n\u003ctd\u003ePublished reclined size is 35\" W × 67\" L × 37\" H.\u003c\/td\u003e\n\u003ctd\u003eMeasure the final room and delivery path before ordering.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003e\u003cspan class=\"t4s-section-heading\"\u003e \u003cspan class=\"t4s-icon\"\u003e \u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 48 48\"\u003e\n\u003cpath d=\"M16 17c2-4 13-5 15 1 2 6-7 6-7 12\" class=\"t4s-icon-line\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M24 36h.1\" class=\"t4s-icon-line t4s-icon-pulse\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e \u003c\/span\u003e \u003cspan\u003eFrequently Asked Questions\u003c\/span\u003e \u003c\/span\u003e\u003c\/h2\u003e\n\u003cdiv class=\"t4s-faq-item\"\u003e\n\u003ch3\u003eIs the Osaki Duke XL 4D designed for tall and larger users?\u003c\/h3\u003e\n\u003cp\u003eYes. Published specifications list support for users up to 6'8\" and a maximum user weight of 400 lb. The chair also has a 23-inch seat width, 26-inch shoulder width, and an extendable footrest. Individual fit still depends on body proportions, so testing the chair or a comparable XL model is useful when possible.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"t4s-faq-item\"\u003e\n\u003ch3\u003eIs the Osaki Duke XL 4D actually a 4D massage chair?\u003c\/h3\u003e\n\u003cp\u003eYes. Osaki lists a 4D massage mechanism along with body scan technology. The 4D system is designed to vary massage depth, speed, and rhythm rather than operating at one fixed roller character.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"t4s-faq-item\"\u003e\n\u003ch3\u003eWhat is the SL-Flex Track on the Duke XL 4D?\u003c\/h3\u003e\n\u003cp\u003eThe Duke XL uses an SL-Flex Track system that extends the massage path through the back and toward the seat area while accommodating changes in body position during recline. It works together with the 4D mechanism rather than functioning as a separate massage system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"t4s-faq-item\"\u003e\n\u003ch3\u003eDoes the Osaki Duke XL 4D have zero gravity?\u003c\/h3\u003e\n\u003cp\u003eYes. Zero gravity reclining is a verified feature of the Duke XL 4D. It places the user in a supported reclined position and changes how the body contacts the chair during a massage session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"t4s-faq-item\"\u003e\n\u003ch3\u003eHow many massage programs does the Duke XL 4D have?\u003c\/h3\u003e\n\u003cp\u003eOsaki lists 20 automatic programs and five manual massage modes. This gives buyers both quick preset sessions and more direct control over the massage experience.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"t4s-faq-item\"\u003e\n\u003ch3\u003eHow does the foot and calf massage work?\u003c\/h3\u003e\n\u003cp\u003eThe Duke XL 4D combines dedicated deep calf massage, air compression, and three specialized foot rollers beneath each foot. The spring-loaded extendable footrest also helps accommodate longer legs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"t4s-faq-item\"\u003e\n\u003ch3\u003eDoes the Duke XL 4D include heat?\u003c\/h3\u003e\n\u003cp\u003eYes. The chair includes Heating Shawl Therapy. Published product specifications describe warming use around areas such as the lumbar region, feet, chest, and abdomen depending on how the shawl is positioned. Heat should be understood as a comfort feature rather than a medical treatment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"t4s-faq-item\"\u003e\n\u003ch3\u003eWhat are the dimensions of the Osaki Duke XL 4D?\u003c\/h3\u003e\n\u003cp\u003ePublished dimensions are approximately 35\" W × 60\" L × 45\" H upright and 35\" W × 67\" L × 37\" H reclined. The chair weighs approximately 325.6 lb. Minimum doorway guidance is 35\" assembled or 28\" when disassembled, so delivery access should be checked in advance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"t4s-faq-item\"\u003e\n\u003ch3\u003eWhat controls and smart features does the Duke XL 4D include?\u003c\/h3\u003e\n\u003cp\u003eThe chair includes a touchscreen controller, integrated shortcut controls, Intelligent Health Detection, USB-C charging, Bluetooth speakers, and LED lighting. Any wellness information shown by the health-detection system should be treated as informational and not as medical data or diagnosis.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"t4s-faq-item\"\u003e\n\u003ch3\u003eShould I try the Duke XL 4D before buying?\u003c\/h3\u003e\n\u003cp\u003eIf possible, yes — especially if XL fit is one of your main reasons for considering the chair. Shoulder alignment, roller intensity, calf fit, footwell comfort, and entry and exit are personal. House of Massage Chairs showroom inventory changes, so call ahead to confirm whether the Duke XL 4D or the closest comparable Osaki XL model is currently available to test.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"t4s-final-cta\"\u003e\n\u003ch2\u003e\u003cspan class=\"t4s-section-heading\"\u003e \u003cspan class=\"t4s-icon\"\u003e \u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 48 48\"\u003e\n\u003cpath d=\"M12 31h24\" class=\"t4s-icon-line\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M16 31V18h11c4 0 7 3 7 7v6\" class=\"t4s-icon-line\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M14 37h7\" class=\"t4s-icon-line t4s-icon-wave\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M27 37h7\" class=\"t4s-icon-line t4s-icon-wave\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e \u003c\/span\u003e \u003cspan\u003eIs The Osaki Duke XL 4D The Right Fit For You?\u003c\/span\u003e \u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eChoose the Duke XL 4D if you need more room than a conventional massage chair provides but still want advanced 4D rollers, body scanning, zero gravity, strong calf and foot massage, heat, air compression, and modern touchscreen controls.\u003c\/p\u003e\n\u003cdiv class=\"t4s-cta-row\"\u003e\n\u003ca href=\"https:\/\/houseofmassagechairs.com\/collections\/osaki\" class=\"t4s-cta-secondary t4s-cta-light\"\u003eCompare Osaki Models\u003c\/a\u003e \u003ca href=\"https:\/\/houseofmassagechairs.com\/pages\/best-4d-massage-chairs-compared\" class=\"t4s-cta-secondary t4s-cta-light\"\u003eCompare 4D Chairs\u003c\/a\u003e \u003ca href=\"https:\/\/houseofmassagechairs.com\/pages\/shipping-policy\" class=\"t4s-cta-secondary t4s-cta-light\"\u003eReview Delivery Options\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"House of Massage Chairs","offers":[{"title":"Black","offer_id":45833724231887,"sku":null,"price":6999.0,"currency_code":"USD","in_stock":true},{"title":"Taupe","offer_id":45833724264655,"sku":null,"price":6999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0649\/9516\/4367\/files\/duke-xl-4d-black-5785669_1195x1071_e3f921ef-6703-46d0-802a-7b581b894aab.webp?v=1787569328","url":"https:\/\/houseofmassagechairs.com\/products\/osaki-duke-xl-4d-massage-chair","provider":"House of Massage Chairs","version":"1.0","type":"link"}