Osaki Massage Chair 4D: Platinum Sapphire 4D+
HSA/FSA eligible — pay with pre-tax dollars.
6-Month Price Protection: if our price drops within 6 months, Black Friday included, we'll refund the difference. Details
Every chair we sell is on the floor in both showrooms (3,500–4,000 sq ft each), so you can try them all in one visit. Walk-ins welcome · Hours
Key specs
- Size upright
- 33.5″ W × 62.5″ L × 48″ H
- Size reclined
- 33.5″ W × 75.5″ L × 38″ H
- Warranty
- Manufacturer warranty — see warranty details
- Delivery
- White-glove delivery and setup included
Osaki Platinum Sapphire 4D+ Massage Chair
Technical Specs & Product Details
Use this section as the first buying checkpoint before comparing the Osaki Platinum Sapphire 4D+ massage chair, which many shoppers call the Osaki Sapphire 4D massage chair, with other Osaki 4D models and premium full body massage chair options.
| Specification | Osaki Platinum Sapphire 4D+ Details | Buyer Benefit |
|---|---|---|
| Brand | Osaki | A recognized massage chair brand with a broad model lineup for premium comparison shopping. |
| Product Name | Osaki Platinum Sapphire 4D+ Massage Chair | Clear model identity for shoppers comparing Osaki massage chair 4D options. |
| Financing | Affirm financing available, 6, 12 or 24 months, as low as 0% APR (rates 0–36% APR, subject to an eligibility check) | Helps shoppers compare massage chair financing options before committing to a high-ticket wellness purchase. |
| Color Options | Black, Beige | Two refined finishes for modern living rooms, offices, media rooms, and home wellness spaces. |
| Core Massage System | 4D+ Sonic Wave Tech with Ultra Mechanism | Creates a more dynamic massage feel than basic roller movement alone. |
| Intensity Control | 12 intensity levels | Important for households where one user wants a gentle massage and another wants stronger pressure. |
| Massage Programs | 23 total massage programs, including 13 Sonic Wave programs | Gives buyers structured routines for daily relaxation, full-body reset, foot focus, and relaxing after activity. |
| Track Coverage | Extended SL-Track | Supports longer roller travel from the neck and back toward the lower-body line. |
| Recline | 3 Stage Zero Gravity | Helps the chair feel more supported and immersive during longer sessions. |
| Air Massage | 46-Cell Full Body Air Massage | Adds compression-style comfort across the body, not just roller pressure. |
| Heat | 4D Heated Back Rollers plus arms and calves heating | Adds warmth where shoppers often want it most: back, arms, and lower body. |
| Foot & Calf Massage | Sonic Wave Foot Reflexology with calf and foot rollers | Strong fit for tired feet, standing work, travel fatigue, and lower-body relaxation. |
| Arm & Hand Massage | Palm Rolling & Arm Shiatsu | Useful for desk workers, drivers, and shoppers who carry tension through hands and forearms. |
| Personalization | Advanced Body Scan, adjustable shoulder airbags, automatic foot extension | Helps align the massage to the user instead of relying on one-size-fits-all placement. |
| Controls | 7" Touchscreen Display | Reduces complexity and makes daily use easier for a premium smart massage chair. |
| Upright Dimensions | 33.5" W × 62.5" L × 48.0" H | Useful for measuring the chair’s everyday footprint before delivery. |
| Reclined Dimensions | 33.5" W × 75.5" L × 38" H | Helps plan room depth and recline clearance. |
| Chair Weight | 337.31 lb | Important for delivery planning, room placement, and upstairs access questions. |
| Shoulder Width | 18" | Helpful for fit expectations, especially for shoppers comparing body type comfort. |
| Seat Width | 20" | Important for judging seating comfort before buying or scheduling a showroom test. |
| Delivery | Free US shipping · white-glove delivery and setup · estimated delivery shown above | Lets you plan the delivery path, room placement, and setup before the chair ships. |
The Osaki Platinum Sapphire 4D+ Massage Chair is built for shoppers who want a serious Osaki 4D massage chair with a more immersive, sensory, full-body experience. It combines 4D+ Sonic Wave Tech, 12 intensity levels, Extended SL-Track coverage, 46-cell full body air massage, heated back rollers, arm and calf heat, Sonic Wave Foot Reflexology, calf and foot rollers, advanced body scan, and 3 Stage Zero Gravity.
This is not the massage chair for someone shopping only by lowest price. It is for buyers comparing luxury massage chairs online who want the chair to feel refined, adjustable, and worth returning to after long workdays, travel, long days at a desk or on your feet.
Why The Sapphire 4D+ Deserves A Closer Look
Most massage chair pages fail because they list features without explaining why they matter. The Sapphire 4D+ is different because its strongest features work together: Sonic Wave sensation, 4D roller control, heat, air compression, zero gravity recline, foot reflexology, arm shiatsu, and body scanning. That is the difference between a chair that sounds advanced and a chair that feels useful every day.
If you are searching for a strong Osaki massage chair, a high end massage chair, or a premium massage chair for home, the real question is not whether this model has enough features. It does. The better question is whether you want a fuller, more immersive Osaki massage chair 4D experience instead of a simpler chair that only works one or two body zones well.
Key Features, Explained Like A Buyer Actually Thinks
4D+ Sonic Wave Tech
The signature reason to consider the Sapphire 4D+ is its 4D+ Sonic Wave Tech. A standard massage chair can press and roll, but Sonic Wave adds a more dynamic sensory layer. That matters for shoppers who want something more nuanced than simple pressure.
Why it matters: Stronger is not always better. Better is adjustable, controlled, repeatable, and comfortable enough to use often. This is why many premium shoppers search for Osaki 4D massage chair models instead of basic massage chair recliners.
Ultra Mechanism With 12 Intensity Levels
The Ultra Mechanism gives the Sapphire 4D+ a wide pressure range. One user can choose a softer daily relaxation session while another can select a stronger routine for upper back, lower back, shoulders, calves, or feet.
Massage chair cost feels easier to justify when the chair adapts across moods, body types, and household preferences.
Extended SL-Track Coverage
The Extended SL-Track helps the rollers travel along a longer body path, supporting a more complete massage from the neck and shoulders through the back line. If you are comparing SL-track massage chair models, this coverage is central to why the Sapphire 4D+ feels more complete than short-track chairs.
Why it matters: Buyers rarely hold tension in only one place. A longer coverage path makes the chair more relevant for whole-body relaxation, not just upper-back pressure.
4D Heated Back Rollers, Arm Heat, And Calf Heat
The Sapphire 4D+ uses heat as part of the massage routine, not as an afterthought. Heated back rollers add warmth to roller movement, while arm and calf heating extend the comfort stack beyond the torso.
Sonic Wave Foot Reflexology, Calf Rollers, And Foot Rollers
The lower-body experience is one of the strongest reasons to choose the Osaki Platinum Sapphire 4D+. The chair gives the feet and calves real attention through Sonic Wave Foot Reflexology, calf rollers, foot rollers, and calf heat.
Best for: tired feet after standing, long commutes, frequent travel, retail work, walking-heavy days, and buyers who want a massage chair with foot massage rather than a back-only model.
46-Cell Full Body Air Massage
The 46-cell full body air massage system adds compression-style comfort across multiple zones. Rollers provide detailed movement; airbags create a held, organized squeeze-and-release sensation.
Why it matters: Air compression massage makes the Sapphire feel more immersive and complete, especially for shoppers comparing full body massage chairs and top rated massage chairs.
Advanced Body Scan And Adjustable Shoulder Airbags
Body scanning helps the chair map the user before the session begins. Adjustable shoulder airbags help the upper-body compression feel more intentional. Automatic foot extension also supports shared household use.
Why it matters: A premium massage chair should not force your body into the chair’s default assumptions. It should work toward your fit.
7-Inch Touchscreen Display
The touchscreen display makes the Sapphire 4D+ feel less intimidating. You can select programs, adjust intensity, change massage speed, manage air intensity, and move between Sonic Wave, auto, manual, posture, and settings without feeling buried in controls.
Why it matters: A smart massage chair only creates value if people actually use it. Clear controls increase daily use.
What You’ll Notice In Your First 5 Minutes
- You settle deeper when the chair moves into 3 Stage Zero Gravity.
- The advanced body scan makes the session feel more aligned to your body type.
- You notice the 4D+ Sonic Wave rhythm feels different from standard roller massage.
- The 46-cell air compression creates a wrapped, full-body massage chair sensation.
- The Sonic Wave Foot Reflexology gives tired feet immediate attention.
- The heated rollers and calf heat make slower programs feel calmer and more premium.
- The 7-inch touchscreen makes intensity adjustments fast enough to use during the session.
Best-Fit Buyer: Who Should Choose The Sapphire 4D+?
Best For
- Buyers searching for an Osaki massage chair 4D with a premium Sonic Wave experience.
- Shoppers comparing premium Osaki 4D models and other luxury massage chair options side by side.
- Households that need multiple intensity levels for different users.
- Desk workers who want neck, shoulder and arm massage.
- Standing workers, travelers, and active users who want stronger foot and calf massage coverage.
- Buyers who want a high end massage chair with heat, air compression, zero gravity, and a refined touchscreen.
- People who want to test an Osaki massage chair showroom experience before purchase.
Not Ideal If
- You are shopping mainly for a cheap massage chair or lowest possible price.
- You need the smallest compact massage chair for a tight apartment.
- You dislike advanced controls and want a very basic recliner massage chair.
- You are highly sensitive to deeper pressure and do not plan to test the chair first.
- You need medical treatment for an injury or condition rather than a home relaxation product.
- You cannot verify room dimensions, reclined length, and delivery path before purchase.
How The Sapphire 4D+ Compares To Other Osaki Chairs
The Sapphire 4D+ should be compared as a premium Osaki chair with a full-sensory Sonic Wave identity. It is not just a massage chair for sale with a long spec list. It is a decision for shoppers who care about massage feel, program variety, body scan consistency, zero gravity positioning, air compression, heated rollers, and lower-body coverage.
| Comparison Option | Best If You Want | How To Decide In Store |
|---|---|---|
| Osaki Platinum Sapphire 4D+ | Sonic Wave experience, 12 intensity levels, 23 programs, heated back rollers, 46-cell air massage, and premium foot/calf focus. | Try a Sonic Wave program, then repeat it at a lower and higher intensity to feel the control range. |
| Osaki Zion 4D | A 4D mechanism on an SL track with automatic body scan, 32-cell air massage, two calf rollers, voice command, and wireless charging. | Run the same full-body program on both chairs and judge whether Sonic Wave and the 46-cell air system feel worth the step up. |
| Osaki 4D+3D Bravo Duo Flex | A different Osaki feel at a lower price point with a different mechanism and value story. | Compare track feel, program transitions, and whether Sapphire’s Sonic Wave experience feels worth the upgrade. |
| Osaki OS-Pro 4D DuoMax | Another premium Osaki option for shoppers comparing mechanism feel, control flow, and massage intensity. | Run a similar full-body program on both chairs and judge which one your body wants to return to. |
| Osaki Massage Chair Collection | A full Osaki lineup comparison by price, feature level, body fit, and showroom availability. | Shortlist two to three chairs and test them back-to-back instead of guessing online. |
For listed dimensions across seven single-mechanism Osaki chairs, including the Zion 4D and the two XL frames, see Osaki 4D and XL massage chairs compared.
Honest recommendation: If you are comparing Osaki massage chair price, do not compare only the dollar amount. Compare what comes with the chair: free US shipping with white-glove delivery and setup, Osaki's 5-year manufacturer warranty (see warranty details), and our 6-Month Price Protection.
Premium Lifestyle Positioning
The Osaki Platinum Sapphire 4D+ is a home wellness routine disguised as a piece of furniture. After desk work, the shoulder airbags, arm shiatsu, and heated back rollers become the features you notice first. After standing or travel, the calf and foot rollers make the lower-body work feel central instead of secondary. After a long week, the zero gravity positioning and Sonic Wave programs help turn the chair into a repeatable reset.
That is the real value of a premium massage chair. Not one dramatic session. A routine you can return to because the chair feels comfortable, adjustable, and worth making space for.
Why Buy From House Of Massage Chairs?
A high-ticket massage chair is too personal to buy from specs alone. Two chairs can both say “4D massage chair” and feel completely different. Roller character, shoulder fit, foot pressure, calf fit, touchscreen simplicity, recline angle, air compression, heat feel, and delivery path all matter.
House of Massage Chairs helps shoppers compare premium massage chairs, Osaki massage chair reviews, showroom fit, delivery, warranty, financing, and model differences before purchase. That guidance is especially important when choosing a luxury massage chair online.
Buying Guidance: Choose Sapphire 4D+ If These Priorities Matter Most
| Your Priority | Why Sapphire 4D+ Makes Sense | What To Verify Before Buying |
|---|---|---|
| Immersive 4D feel | 4D+ Sonic Wave Tech and 12 intensity levels create a more adjustable massage chair 4D experience. | Test Sonic Wave at different intensities to confirm comfort. |
| Full-body coverage | Extended SL-Track, 46-cell air massage, arm shiatsu, shoulder airbags, foot rollers, and calf rollers create a broader routine. | Confirm fit through seat width, shoulder width, and body scan comfort. |
| Premium foot focus | Sonic Wave Foot Reflexology and lower-body rollers make it stronger for tired feet than many back-focused chairs. | Test footwell comfort and calf pressure if possible. |
| Zero gravity relaxation | 3 Stage Zero Gravity gives you multiple recline options for a calmer session feel. | Measure reclined dimensions and wall clearance before delivery. |
| Household use | Multiple programs, intensity control, body scan, and automatic foot extension support more than one user. | Have each regular user run the body scan and one full program before you order. |
| Premium buying confidence | Showroom testing, product comparison, warranty discussion, financing, and delivery support reduce purchase risk. | Free US shipping with white-glove delivery and setup. Manufacturer warranty — see warranty details. |
Frequently Asked Questions About The Sapphire 4D+
Where can I buy the Osaki Platinum Sapphire 4D+ massage chair?
At House of Massage Chairs, an authorized Osaki dealer. You can order the Osaki Platinum Sapphire 4D+ online with free US shipping and white-glove delivery and setup, or buy it at our showrooms at Westfield Oakridge in San Jose and Stoneridge in Pleasanton, where walk-ins are welcome. Call or text (669) 214-8889 with questions before you order.
Can I try the Osaki Platinum Sapphire 4D+ before buying?
Yes. The Osaki Platinum Sapphire 4D+ is on the floor in both our San Jose (Westfield Oakridge) and Pleasanton (Stoneridge) showrooms. Each is 3,500–4,000 sq ft and carries 45+ chairs, so you can compare everything in one visit without driving to another store, and walk-ins are welcome with no appointment needed. Try a Sonic Wave program at a lower and higher intensity, the foot reflexology, and the zero gravity recline.
Is the Osaki Platinum Sapphire 4D+ worth it?
Yes, if you want a premium Osaki massage chair with 4D+ Sonic Wave Tech, 12 intensity levels, Extended SL-Track coverage, heated back rollers, 46-cell full body air massage, zero gravity, and strong foot-and-calf massage. The Osaki Platinum Sapphire 4D+ is worth the investment for buyers who plan to use it consistently and want a luxury massage chair, not a basic recliner.
What does 4D+ Sonic Wave mean on the Osaki Platinum Sapphire 4D+?
It means 4D roller control with a Sonic Wave layer on top. The Osaki Platinum Sapphire 4D+ lists 4D+ Sonic Wave Tech and an Ultra Mechanism with 12 intensity levels on an Extended SL-Track. Of its 23 massage programs, 13 are Sonic Wave programs, so you can compare the Sonic Wave rhythm with standard roller massage in the same session.
Does the Osaki Platinum Sapphire 4D+ massage the feet and calves?
Yes. The Osaki Platinum Sapphire 4D+ includes Sonic Wave Foot Reflexology, calf rollers, foot rollers, and calf heating, and the footrest extends automatically. This makes the lower-body experience one of its strongest selling points. Heat is not limited to the legs: the Sapphire 4D+ also lists 4D heated back rollers and arm heating.
How much space does the Osaki Platinum Sapphire 4D+ need?
Plan for 33.5 inches of width and 75.5 inches of length. The Osaki Platinum Sapphire 4D+ measures 33.5" W × 62.5" L × 48.0" H upright and 33.5" W × 75.5" L × 38" H reclined, and the chair weighs 337.31 lb. Measure the room for the reclined length, then check doorways, hallways, stairs, and turns before delivery.
Will the Osaki Platinum Sapphire 4D+ fit my body?
18 inches at the shoulders and 20 inches at the seat are the listed widths for the Osaki Platinum Sapphire 4D+. No user height range or weight limit is listed for this model, so call or text (669) 214-8889 with your height and weight before you order, and test shoulder airbag fit, calf pressure, and footwell comfort in person if you can.
What is the difference between the Osaki Platinum Sapphire 4D+ and the Osaki Zion 4D?
The Sonic Wave layer and the air system. The Osaki Platinum Sapphire 4D+ adds 4D+ Sonic Wave Tech, 13 Sonic Wave programs, 46-cell full body air massage, Sonic Wave Foot Reflexology, and a 7-inch touchscreen. The Osaki Zion 4D uses a 4D mechanism on an SL track with 32-cell air massage, two calf rollers, voice command, and wireless charging. Both list a 20-inch seat width.
What warranty comes with the Osaki Platinum Sapphire 4D+?
5 years. The Osaki Platinum Sapphire 4D+ comes with Osaki's manufacturer warranty, and House of Massage Chairs is an authorized Osaki dealer. Osaki lists 3 years of full service plus 2 additional years of parts for this model, so ask us for the written coverage before you order. Your Sapphire 4D+ purchase is also covered by our 6-Month Price Protection, and you can pay with Affirm, as low as 0% APR, subject to eligibility.
Is the Osaki Platinum Sapphire 4D+ HSA/FSA eligible?
Yes. The Osaki Platinum Sapphire 4D+ is HSA/FSA eligible with a Letter of Medical Necessity (LMN). Our HSA/FSA massage chair guide explains how buying with HSA or FSA funds works, and you can call or text (669) 214-8889 with questions before you order the Sapphire 4D+.
Ready To Decide If The Sapphire 4D+ Fits Your Home?
Choose the Osaki Platinum Sapphire 4D+ if you want a premium Osaki 4D massage chair with Sonic Wave technology, zero gravity, heated rollers, full-body air compression, and serious foot-and-calf coverage.
Walk-ins are welcome at our San Jose and Pleasanton showrooms, no appointment needed. The Sapphire 4D+ is on the floor at both, and each carries 45+ chairs, so you can compare everything in one visit.
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Try it before you buy. Every chair we sell is on the floor in both showrooms — San Jose (Westfield Oakridge) and Pleasanton (Stoneridge Mall). Walk-ins welcome, no appointment needed · Questions? Call or text (669) 214-8889.
Still deciding? How to choose a massage chair by budget · Massage chairs compared for comfort and fit
What showroom visitors say on Google
Google reviews of our San Jose and Pleasanton showrooms (store reviews, not reviews of this product), quoted as written.
Great experience. I have been to this store twice and tried many of the chairs before choosing the Osaki Trion. The sales consultants are patient, competent and thorough. I never felt pressured to make a decision until I was ready.
J. M. · Pleasanton showroom · Google review
Amazing service from Gio! Totally no rush, no pressure to make a purchase! Gio was open, and took the time and initiative to make sure we were getting the chair that best fits our needs and pricing. We glad we made this purchase!
Y. G. · Pleasanton showroom · Google review
Henry and Shawn were absolutely amazing in helping us select the chair of my dreams. They went over and above in not only helping me compare the models and benefits but to also explain the technology behind the various ones I tried. Go here and be happy with the chair you pick!
M. R. · San Jose showroom · Google review
Just had an amazing experience buying my first massage chair. Gabe was very patient and explained in detail all the different chairs available in their showroom. They have a lot of different chairs in their showroom. I highly recommend coming here if you need to buy a massage chair!
S. L. · Pleasanton showroom · Google review
My husband and I stopped in on the fly to look at a foot massager. We got the best help from Shawn. He was so patient with us in our indecisiveness. Shawn is very knowledgeable in the inventory and we willingly tried a massage chair to check the new tech of the chairs. We tried several different chairs and ended up purchasing the 'Ferrari' chair. We are so grateful for his patience, his knowledge, and his continually helping us and with all the settings. We are excited about our new purchase and we are looking forward to the benefits and relaxing moments that await. Thank you Shawn for your help and good luck to you!
S. C. · San Jose showroom · Google review
Great experience shopping for a massage chair here! The store has a wide selection of massage chairs that you can actually try, which really helped us compare the different options.
My husband and I spent about two hours trying different chairs, and Shawun was very patient and helpful throughout the entire process. He let us try all the chairs we were interested in and clearly explained the features and differences between each one. We finally found a chair that we both really liked.
We really appreciate Shawun help, as well as Michael’s assistance. Great selection and very helpful service. Highly recommended!
N. M. · Pleasanton showroom · Google review
My wife and I have been looking at Massage Chairs on line for quite some time. Everything I've read, said to go out and try several to see what is the best fit, comfort and price.
Today, we went to House of Massage Chairs and met with Henry Ipek. He showed us numerous massage chairs to find out what was the best fit for us. I think we probably tried 10 different chairs while we were in the store.
Finally, my wife and I finally agreed on one chair that we both loved. It wasn't the chair I came in for or saw on line, but it was 10X better. We spent a little more than we initially wanted to, but when you figure this is going to last us a long time, we went ahead and pulled the trigger.
Henry was wonderful dealing with and gave us a good and fair price on the massage chair.
We couldn't be more happy with our purchase and the service we got from Henry.
T. S. · San Jose showroom · Google review
We were very impressed with the selection of massage chairs and the service we received. We were able to take our time trying many different models. Shawun was knowledgeable and patient, explaining the features of each chair and helping us find one that both my wife and I liked. Michael was also very helpful. We really appreciated their friendly service and would definitely recommend this store.
S. C. · Pleasanton showroom · Google review
Henry at House of Massage Chairs provided truly exceptional service from start to finish. He spent a generous amount of time with my wife and me, helping us find the right massage chair for both of our needs. He patiently walked us through the different brands, features, and technologies, explaining each brand’s approach and how those differences translate into the actual massage experience. His knowledge and attention to detail helped us feel informed and confident in our decision.
What really set Henry apart was how far he went to help us beyond the store visit. He assisted with delivery and even helped us navigate the return of a massage chair we had recently purchased. That level of care and follow-through made a big difference to us.
Throughout the entire process, we felt that Henry genuinely cared about finding the best fit for us. If you’re considering a massage chair, I highly recommend visiting House of Massage Chairs and asking for Henry. Thank you, Henry, for your patience, expertise, and outstanding service!
B. C. · San Jose showroom · Google review
Salesman Gabe spent time with us explaining the features of each chair and the differences between chairs. No pressure sales.
D. H. · Pleasanton showroom · Google review
We had a wonderful experience here! Henry was incredibly welcoming, knowledgeable, and professional. He took the time to understand what we were looking for and quickly helped us narrow down the options based on our preferences.
The store carries a great selection of different brands and models, probably one of the most comprehensive selections we’ve seen in the Bay Area. It was really convenient to be able to try so many different chairs in one place, and we found one we loved pretty quickly.
Henry also did a great job explaining the differences between the chairs, as well as the warranty and after-sales service for each option. We really appreciated how transparent and thorough he was—it made us feel very comfortable and confident about our purchase.
Overall, it was such a pleasant and stress-free shopping experience. Great selection, great service, and very knowledgeable staff. Highly recommend Henry and this store if you’re looking for a massage chair!
C. C. · San Jose showroom · Google review
We visited the store intending to buy a chair on father's day. Gabe's exceptional patience, comprehensive knowledge of all available chairs, and friendly, non-pressuring demeanor made the experience truly enjoyable. We spent over 3 hrs trying almost every chair, so much so that we didn't realize the mall had already closed. Despite this, Gabe graciously encouraged us to take our time and not rush our decision. Ultimately, we purchased a chair that exceeded our initial budget, but its quality has proven invaluable as we use it daily. Thank you Gabe again!
C. B. · Pleasanton showroom · Google review
Read all reviews on Google: San JoseRead all reviews on Google: Pleasanton
Quoted as written on Google, reviewer initials only. Ratings and review counts as of Oct 2026.