Osaki Massage Chair OP-Ai Xrest 4D+
HSA/FSA eligible — pay with pre-tax dollars.
Showrooms in San Jose and Pleasanton
Questions? Talk to a chair specialist · +1 669 214 8889
- 2-year warranty — manufacturer-backed coverage
- Extended factory warranty available
- Price-match promise — authorized-dealer pricing on identical chairs
Authorized dealer
House of Massage Chairs · Osaki Platinum
Muscle Tension Detection, automatic shoulder scanning, an adjustable 4D SL-track system, and three control paths make the Xrest easier to configure day to day.
01 · In Brief
The AI label is not the decision. The workflow is.
In brief
The Osaki OP-AI Xrest 4D+ massage chair is a premium single-mechanism model centered on scan-informed setup and adjustable control. Verified highlights include Muscle Tension Detection, a 4D SL-track mechanism, 16 automatic programs, active calf and foot massage, lumbar and foot heat, and touchscreen, app, and Alexa control. Current HMC price: $8,499.00. Compare the OP Kairos 4D LT if heated rollers or a wider seat matter more.
Scan
Scan data informs the starting program; automatic shoulder adjustment helps align the chair.
4D control
Five speeds, seven intensities, width adjustment, and spot or partial control change the roller feel.
Track
The SL-track runs from the neck and shoulders through the hamstring area.
Lower body
Calf kneading, air compression, three rollers per foot, and extension make the lower body active.
Control
Use the touchscreen, XRest phone app, or predetermined Alexa commands.
Space
One-stage zero gravity pairs with a published three-inch wall clearance.
02 · Anatomy of the Xrest
Five systems. One workflow.
Start with the scan, then decide what to change.
- 01
- 02
- 03
- 04
- 05
Fig. 01 — Muscle Tension Detection
The Scan
Scan first. Then decide how much automation you want.
Muscle Tension Detection uses scan information to tailor a starting program. Automatic shoulder adjustment separately scans body position for alignment.
- Muscle Tension DetectionScan-informed program logic
- Shoulder adjustmentAutomatic body-position scan
Why it mattersThe value is reduced setup, not the AI label itself.
The Mechanism
4D is adjustable here, not just a label.
The 4D mechanism provides five speeds, seven intensities, width adjustment, and spot or partial-back control along an SL-track to the hamstrings.
- Speed5 levels
- Intensity7 levels
- TrackSL-track to hamstrings
Why it mattersAdjustment range matters more than the 4D label alone.
The Lower Body
The footrest does more than hold your legs.
Vertical calf kneading works with air compression, while three rollers sit under each foot. The footrest extends up to nine inches.
- CalvesKneading rollers + air compression
- Feet3 rollers per foot
- ExtensionUp to 9″
Why it mattersTest calf contact and foot pressure directly; the hardware is verified, the feel is personal.
The Recline
Full recline without surrendering the wall.
One-stage zero gravity uses space-saving motion with a published three-inch wall clearance. Length increases from 66.5 inches upright to 76 inches reclined.
- Zero gravity1 stage
- Wall clearance3″
Why it mattersPlan reclined footprint, wall clearance, and walking space together.
The Controls
Three ways to run the same chair.
The swivel touchscreen is the primary controller. The XRest app supports iPhone and Android, while Alexa uses predetermined commands.
- TouchscreenSwivel-mounted controller
- PhoneiPhone + Android app
- VoiceAlexa commands
Why it mattersMultiple control paths matter most after you are reclined.
03 · The Automation Ritual
Automation earns its place by removing decisions.
A practical sequence is simple: scan, choose one of 16 automatic programs, then adjust only what you notice.
Less setup, with manual control still available.
- i.ScanEstablish the starting point
- ii.Choose a program16 automatic options
- iii.Fine-tune pressure7 intensity levels
- iv.Add warmthLumbar + feet heat
- v.Stay reclinedTouchscreen, app, or Alexa
Judge the Xrest on comfort, fit, routine, and control preference, not treatment outcomes.
04 · Body Fit
The scan helps. It does not replace fit.
The scan cannot change a 17-inch seat, 20-inch shoulder width, or 260-pound limit. Fit still wins.
Compare the fit in person →Let the chair scan, then verify where it lands.
Confirm that the shoulder system and roller path land comfortably after the scan.
The footrest extends up to nine inches.
No verified user-height range is published. Use the nine-inch footrest extension, then confirm calf and foot alignment directly.
17-inch seat. 20-inch shoulder width.
These dimensions matter most for larger frames and shared households.
Published maximum: 260 pounds.
Weight capacity is not a comfort guarantee; confirm seat, shoulder, calf, and foot fit.
Different users can start from a fresh scan.
Shared use is practical only if each regular user fits the physical chair.
05 · Feature Index
Feature, then consequence.
Verified features only. Published manufacturer sources conflict on the air-cell count, so no count is claimed here.
Uses scan information to tailor the starting program.
Five speeds, seven intensities, width, spot, and partial-back control.
Runs the roller route from neck and shoulders through the hamstrings.
Adds full-body compression; confirm the cell count if it matters.
Adds warmth at the lumbar area and feet.
Offers guided sessions with less setup.
Provides six manual massage styles for direct selection.
Combines calf kneading, air compression, and three rollers per foot.
Adds leg-length flexibility; no verified height range is published.
Pairs recline with space-saving movement.
Touchscreen, iPhone/Android app, or predetermined Alexa commands.
Audio, quick chair controls, and device charging.
06 · In Your Home
Plan the room before delivery day.
is the published wall clearance. Upright length is 66.5 inches; reclined length is 76 inches.
Footprint
Upright: 31.5″ W x 66.5″ L x 60.5″ H. Reclined: 31.5″ W x 76.0″ L x 56.0″ H.
Delivery path
Chair weight is 254.6 lb; minimum published door width is 31.5 inches. Measure the entire route.
Power
Published supply: 110-120V, 50/60Hz. Plan an accessible existing outlet.
Finishes
- Taupe
- Black
- Brown
Delivery planning
White Glove is included on the current listing; access and fitment conditions still apply.
07 · Ownership
The transaction has three facts to settle.
Delivery
White Glove is included on the current HMC listing.
HMC describes eligible White Glove service as in-home placement, basic setup, packaging removal, outlet connection, and a basic function check, subject to access and service availability.
Warranty
Use the HMC order terms, not an old product paragraph.
The current HMC purchase module lists a 2-year manufacturer-backed warranty and extended factory coverage. Confirm written parts, labor, in-home service, exclusions, and extension terms before checkout.
Access & service
Measure first, then confirm the service path.
Confirm delivery access, return or cancellation terms, damage reporting, and the first service contact before shipment.
The OP-AI Xrest 4D+ is a relaxation and wellness product, not a medical device.
08 · The Buyer Fit
Choose it for the workflow, not the acronym.
A strong fit if you…
- Want scan-informed automation to handle more initial setup.
- Want five speed and seven intensity levels.
- Prioritize active calf and foot massage.
- Want touchscreen, app, and Alexa control.
- Need a published three-inch wall clearance.
- Fit the 17-inch seat, 20-inch shoulder width, and 260-pound limit.
Consider another model if you…
- Want heated rollers or a published 54-inch track; compare the Kairos.
- Need a seat wider than 17 inches.
- Prefer fewer connected controls.
- Cannot confirm delivery access or room fit.
- Require a published user-height range; one is not verified for the Xrest.
Closest Alternative
When the Kairos is the better handoff.
The blueprint’s closest alternative is the OP Kairos 4D LT. Use the differences below to decide which deserves a closer look.
| Decision point | OP-AI Xrest 4D+ | OP Kairos 4D LT |
|---|---|---|
| Personalization | Muscle Tension Detection plus automatic shoulder adjustment. | Real-time body sensing 4D mechanism. |
| Roller & heat emphasis | 4D mechanism with five speed and seven intensity levels; lumbar and foot heat. | 4D heated roller mechanism plus six heating zones. |
| Programs | 16 automatic programs and 6 manual massage styles. | 20 automatic modes and 5 manual massage styles. |
| Controls | Touchscreen, XRest phone app, and Alexa voice commands. | Touchscreen and intelligent voice control; no verified Xrest-style phone app. |
| Room & seat | 31.5″ wide; 17″ seat; 3″ wall clearance. | 35″ wide; 20″ seat. |
Specification Index
The verified record.
Identity & commerce
Massage mechanism
Scanning & programs
Compression, heat & lower body
Recline & placement
Chair dimensions & fit
Controls & convenience
Power & packaging
Purchase support
Confirm the written warranty scope and body fit before purchase. Published manufacturer air-cell counts conflict, so no count is stated as fact.
Questions
OP-AI Xrest 4D+ questions, answered.
What is the current price and availability of the Osaki OP-AI Xrest 4D+?+
HMC currently lists the chair at $8,499.00, compare-at $14,999.00, and in stock. Use the purchase area above for the final checkout status.
What are the dimensions and wall-clearance requirements for the OP-AI Xrest 4D+?+
Upright: 31.5 x 66.5 x 60.5 inches. Reclined: 31.5 x 76.0 x 56.0 inches. Published wall clearance: 3 inches.
What user height and weight range is appropriate for the OP-AI Xrest 4D+?+
Maximum published user weight is 260 lb; the footrest extends up to 9 inches. No verified user-height range is published, so confirm physical fit directly.
What massage mechanism and track does the OP-AI Xrest 4D+ use?+
It uses a 4D mechanism with 5 speeds, 7 intensities, adjustable width, spot or partial-back control, and an SL-track to the hamstring area.
What does the AI label actually do on the OP-AI Xrest 4D+?+
Verified AI-labeled functions are Muscle Tension Detection and automatic shoulder adjustment. Control is available by touchscreen, XRest app, or predetermined Alexa commands.
What lower-body massage does the OP-AI Xrest 4D+ include?+
Calf kneading works with air compression; each foot has three rollers, and the footrest extends up to 9 inches.
What warranty and delivery terms apply to the OP-AI Xrest 4D+?+
The current HMC module lists a 2-year manufacturer-backed warranty, extended factory coverage, and White Glove delivery included. Confirm the written warranty scope and delivery access before checkout.
Before You Decide
Let the scan prove itselfon your body.
Test scan alignment, preferred pressure, calf and foot contact, touchscreen reach, footrest length, and the 17-inch seat.
Contact us to confirm current showroom availability for the OP-AI Xrest 4D+ before you visit.
The Decision
Osaki OP-AI Xrest
4D+ Massage Chair.
Choose the Xrest for scan-informed setup, adjustable 4D control, active lower-body hardware, multiple control paths, and three-inch wall clearance. Compare the Kairos if heated rollers or a wider seat matter more.
Osaki OP-AI Xrest 4D+ Massage Chair · Current price: $8,499.00. Confirm warranty scope, body fit, delivery access, and showroom availability before purchase.