OS-4000XT Breaking Massage Boundaries Osaki has been breaking boundaries in the world of massage technology ever since its inception, and it is continuing that tradition with the evolutionary 4000XT. Fall...
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Osaki OS-4000XT


Black Osaki OS-4000XT

Breaking Massage Boundaries

Osaki has been breaking boundaries in the world of massage technology ever since its inception, and it is continuing that tradition with the evolutionary 4000XT. Fall in love with your new massage chair as it calibrates areas of higher tension, targets stress with powerful compression massages, reclines to weightless positions, and works out stress using six unique massage styles. Experience the very edge of massage technology in the OS-4000XT.

  • Tuape
  • Brown
  • Black

3D Surround
Sound Audio

Connect your phone to the 4000XT via Bluetooth to fully control the spatial audio accompanying your massage. Listen to your favorite tracks, audio books, murder mystery podcasts, or ASMR in genuine high-fidelity 3D audio.

3D Surround Sound Audio

Tension Sensor

The verge of massage technology means locating specific fields of higher tension without being intrusive or obstructive. As such, Osaki has developed a tension sensor to discreetly locate problem areas and handle them accordingly.

Tension Sensor

The Laser-Crafted Steel L-Track allows the encyclopedic massage rollers to seamlessly reach the periphery of your body, all the way from your hamstrings to your neck and shoulders.

L-Track Massage

32 Cell
Full Body
Air Massage

  • Shoulder
  • Armrest
  • Calf
  • Foot
Infrared Lumbar Heating

Zero Gravity Reclining

Experience relaxation in a state of weightlessness with the 4000XT’s two stage zero gravity reclining. This boundary-breaking technology was originally developed by NASA, and has now been adapted to provide a truly thoroughgoing massage experience.

  • Side
  • 1 Step
  • 2 Step
Zero Gravity Reclining

Lumbar Heating

Relinquish unwanted tension with the OS-4000XT’s lumbar heating system. These dual infrared heating coils effectively warm and soothe aches and pains along the spine while improving overall circulation and health.

Lumbar Heating

6 Auto Massage Modes

Neck & Shoulder Mode

Neck & Shoulder

This calming massage targets tension in the upper body and kneads out knots & aches.

Thai Mode


As a replication of the traditional Thai massage, this vigorous massage uses strength and intensity to heal the body.

Strengthen Mode


Revitalize key muscle groups and joints through routine use of this powerful massage.

Recover Mode


Rebuild lost strength in your lower back through the implementation of this massage into your daily routine.

Relax Mode


This gentle massage mode is great for overall health and general use.

Sleeping Mode


Use this gentle massage to quietly drift asleep for an afternoon nap or to effectively combat sleepless evenings.

6 Manual Massage Styles

Kneading Massage Style


Deep, rhythmic, and thorough rocking motions.

Tapping Massage Style


Quick, precise, and effective pointed motions.

Swedish Massage Style


Rough, varying, and intense kneading motions.

Clapping Massage Style


Fast, broad, and wide patting motions.

Rolling Massage Style


Slow, general, and long stroking motions.

Shiatsu Massage Style


Sound, acute, and intentional compressing motions.

The edge of massage technology can now reside along the edge of your room. Using Osaki’s Space Saving Technology, you may place your 4000XT up to 2 inches away from the wall and still achieve a full recline.

Space Saving Technology

Remote Controller

Remote Controller

The OS-4000XT’s Specialized Foot Rollers are uniquely designed to activate various acupuncture points through the use of scientifically designed reflexology ridges.

Specialized Foot Rollers

Designed for any user. The 4000XT was designed with users of varying heights and body types in mind; therefore, the chair’s Extendable Footrest grows up to 6.5 inches for maximum comfort.

Extendable Footrest


Product Name
Osaki OS-4000XT
Power Supply

110-120V ~

Rate Frequency

50/60 Hz

Rated Power Consumption


Auto Timer

15 minutes

(W x L x H)
28.8” x 67.2“ x 44.5”
28.8” x 79” x 37”
175.2 lbs
217.1 lbs
Maximum Body
Weight of User

260 lbs

Doorway Size

28.8 inches

Shipping & Handling Information

Shipping Rates & Policies

  • All standard shipping is a curbside delivery service. This offer covers most items shipped by ground within the contiguous U.S. By curbside delivery, massage chairs will arrive UNASSEMBLED in its original factory boxes unless otherwise mentioned. The trucking company will deliver the items to your driveway or entryway, and you will be responsible for entering it into your residence or business. Since massage chairs are heavy, you may require assistance from a friend or a family member.

  • Threshold Delivery : With threshold delivery mode, massage chairs will be delivered to the nearest ground level entrance of home, business, or apartment building. [EXTRA COST]

  • White Glove Delivery : With white glove delivery, massage chairs will be hand-delivered into your destination and assembled together. White glove delivery need to add about 1-2 weeks to the standard lead time of delivery. Choose the shipping method as White Glove Delivery if you want the service. [EXTRA COST]

  • Please provide a valid street address with each order (we are currently unable to ship to P.O. boxes).
  • Please note we do not ship internationally or to Alaska and Hawaii.

How Fast Will You Receive An Order

All orders are processed between 7 a.m. and 5 p.m. (PST), Monday through Friday. Your order will try to be shipped within 48 hours, unless otherwise noted. Please see Shipping Information for delivery and shipping policies.
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