Osaki OS-4000T Massage Chair
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Osaki OS-4000T Massage Chair
The Osaki OS-4000T Massage Chair combines advanced technology and luxurious comfort, making it one of the best-selling chairs on the market. With a sleek design, three color options, and a wide range of features such as Zero Gravity, S-Track massage, and lower back heat therapy, this chair delivers an exceptional full-body massage experience. It is ideal for users seeking daily relief from muscle tension and improved overall relaxation.
Choose from black, brown, or taupe finishes, each crafted with synthetic leather and backed by Osaki's 3-year limited manufacturer's warranty. Discover why the OS-4000T continues to lead in affordability, features, and user satisfaction.
Key Features
- Zero Gravity Technology: Reduces spinal pressure and enhances relaxation.
- Lower Back Heat Therapy: Targets lumbar tension with soothing heat pads.
- Truly Ergonomic S-Style Massage Track: Ensures consistent pressure along the spine.
- Body Scanning Technology: Customizes the massage to the user's body profile.
- Full-Body Air Compression Massage: 38 airbags deliver gentle compression to key areas.
- Reflexology Foot Rollers: Shiatsu-style massage rollers improve circulation and foot health.
Feature Highlights
Zero Gravity Technology
The chair features two-stage Zero Gravity recline, a technology developed by NASA, to relieve gravitational stress on the spine. This promotes decompression, deeper relaxation, and enhanced massage effectiveness.
Foot Massage Rollers
Dual mechanical rollers provide a Shiatsu-style massage to the soles of your feet, offering reflexology benefits. These rollers, combined with air compression, help relieve deep tissue tension and improve circulation.
Lower Back Heat Therapy
Two large heat pads in the lumbar region enhance the massage by loosening tight muscles, improving blood circulation, and providing relief from lower back pain.
Additional Features
- Manual massage options with adjustable intensity, speed, and width.
- Quad-style rollers mimic human hands for a realistic massage experience.
- Full-body air compression massage with optimized airbag system for reliability.
- Leg scan and extension feature for personalized leg rest adjustment.
- Adjustable shoulder width accommodates a variety of body sizes.
Specifications
| Specification | Details |
|---|---|
| Chair Weight (Net/Gross) | 244.8 lbs / 284.4 lbs |
| Overall Dimensions (LxWxH) | 35" x 52" x 34" |
| Shoulder Width / Seat Width | 18.5" / 16" |
| Minimum Doorway Clearance | 35" |
| Track Type | 30" S-Style Track |
| Chair Features | Zero Gravity, Heat Therapy, Body Scanning, Airbag Compression, Seat Vibration |
| User Height | 5'2" - 6'4" |
| User Weight Capacity | Max: 265 lbs |
Manuals
Osaki Standard Manufacturer’s Warranty
3 Year Standard Manufacturer's / Parts & Labor Warranty
Osaki guarantees that your qualified product will be replaced or repaired at our option, without cost to you, should it be deemed defective because of faulty parts, workmanship or structural defects during the first THREE (3) years of ownership, excluding specific limitations contained herein.
What Is Covered:
- This warranty explicitly covers all parts, labor and framework of the chair.
- This warranty includes parts costs and labor for the first year at no cost to the customer.
- This warranty includes parts costs covered for the second year at no cost to the customer.
- Structural Framework on selected products carries for three (3) years.
- The additional extended warranties include parts and labor costs covered at no cost to the customer.
MassageChairPlanet.com Staff Approved
Guardian Platinum Plus Plan | 5 Years Parts & Labor Warranty Plus In-Home Service + Accidental Damage
MassageChairPlanet.com offers an optional 5-year extended warranty package that covers parts and labor for a full 5 years with included in-home service. Go above and beyond the manufacturer’s warranty to protect your investment. This is easily the best value when it comes to your warranty options.
Compare Top-Selling Osaki Massage Chairs
| OS-4000T | OS-Pro First Class | OS-PRO Maestro | OS-PRO Admiral | PRO OS-4D Paragon | |
|---|---|---|---|---|---|
| Model |  |
 |
 |
 |
 |
| Color Options | Black, Brown, Cream | Dark Grey, Beige, Black/Beige, Brown Beige | Black/Silver, Brown, Beige, Burgundy, Blue | Black, Brown, Taupe | Black, Brown, Beige, Grey |
| Massage Track | S-Track | L-Track | S+L-Track | L-Track | L Track |
| Massage Track Length | 31" | 49" | 52" | 50" | -- |
| Space Saving | No | Yes | Yes | Yes | Yes |
| Intensity | Medium-Strong | Medium-Strong | Medium-Very Strong | Medium-Strong | -- |
| Back Roller Type | 2D | 3D | 4D | 3D | 4D |
| Roller Width Adjustment | Yes | Yes | Yes | Yes | Yes |
| Adjustable Intensity | Yes | Yes | Yes | Yes | Yes |
| Adjustable Speed | Yes | Yes | Yes | Yes | Yes |
| Auto Pre-Programs | 6 | 23 | 8 | 16 | 13 |
| Manual Techniques | 6 | 5 | 4 | 6 | -- |
| Zero Gravity | Yes | Yes | Yes | Yes | Yes |
| Heat | Yes | Yes | Yes | Yes | Yes |
| Stretch Function | Yes | Yes | Yes | Yes | Yes |
| Foot Massage | Yes (rollers + airbags) | Yes (rollers + airbags) | Yes (rollers + airbags) | Yes (rollers + airbags) | Yes (rollers + airbags) |
| Calf Massage | Yes (airbags) | Yes (rollers + airbags) | Yes (airbags) | Yes (airbags) | Yes (airbags) |
| Hip/Waist Air Bag Massage | Yes (airbags) | Yes (airbags) | Yes (airbags) | Yes (airbags) | Yes (airbags) |
| Upper Arm-Shoulder Massage | Yes (airbags) | Yes (airbags) | Yes (airbags) | Yes (airbags) | Yes (airbags) |
| Arm Massage | Yes (airbags) | Yes (airbags) | Yes (airbags) | Yes (airbags) | Yes (airbags) |
| Neck-Head Massage | Yes | Yes | Yes | Yes | Yes |
| Spot Massage | Yes | Yes | Yes | Yes | -- |
| Deep Tissue | Yes | Yes | Yes | Yes | -- |
| Body Scan | Yes | Yes | Yes | Yes | Yes |
| Inversion Therapy | No | No | No | No | No |
| Chromotherapy | Yes | No | No | No | No |
| Vibration | Yes | No | No | No | No |
| User Memory | No | Yes | No | No | -- |
| Control With Mobile App | No | No | Yes | No | Yes |
| Timer | 5-30 Mins | 15 Mins | 15 Mins | 5-30 Mins | 5-30 Mins |
| Pause Function | Yes | Yes | Yes | Yes | Yes |
| Leg Length Adjustment | Motorized | Spring Loaded | Motorized | Spring Loaded | Motorized |
| Remote | Yes, Wired | Yes, Wired | Yes, Wired | Yes, Wired | Yes, Wired |
| Rocking Technology | No | No | No | No | No |
| Number of Airbags | 38 | 24 | 32 | 24 | -- |
| Bluetooth Speakers | No | Yes | Yes | Yes | Yes |
| Suggested User Height | 5' 2" - 6'4" | 5'-6'5" | 5'-6'5" | 5'2"-6'3" | -- |
| Max User Weight | 260 lbs | 260 lbs | 260 lbs | 260 lbs | -- |
| Dimensions Upright (L x W x H) | 58.3"L x 35.4"W x 48"H | 63" L x 30" W x 46.5" H | 59.1" L x 28.0" W x 47.2" H | 64.2" L x 30.7" W x 50" H | 63.8"L x 35.2" W x 49.2"L |
| Dimensions Reclined (L x W x H) | 74.8"L x 35.4"W x 45.3"H | 72" L x 30" W x 46.5" H | 70.1" W x 28.0" L x 38.6" H | 74.8" W x 30.7" L x 40.6" H | 77.0"L x 35.2" W x 38.8" H |
| Chair Weight | 255 lbs | 311 lbs | 240.6 lbs | 239 lbs | 220 lbs |
| Manufacturer Origin | China | China | China | China | China |
| Buy Now | Buy Now | Buy Now | Buy Now | Buy Now |