OSAKI OS-4000T Massage Chair Review

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OSAKI OS-4000T Massage Chair

Introducing the newest update to the best-selling OS-4000 Massage Chair, the OS-4000T now includes foot rollers. The OS-4000T features beautifully updated upholstery and Zero Gravity, an S-track with a 30″ length, body scan technology, S-track, full-body air massage, seat vibration, and heat therapy for your lumbar region.

Kristina Martin

Reclining Feature
Intensity settings & Coverage Area
Heating Feature
Kneading feature
User Experience & Ease Of Use
Space Saving
Design and Aesthetics
Unique Technology & Features
Brand Reliability & Support


It is hard to beat the price of this contemporary-looking high-end Osaki OS-4000T massage chair, especially when you consider that it has zero gravity and mechanical foot rollers as well as massages for the neck, shoulder, back, thigh, buttock, and calf.


Reasons to Buy

Truly Ergonomic S-Track
Upgraded Synthetic Leather
Next Generation Air Massage Technology
Powerful vibration massage for buttocks
Micro adjustments

Reasons to Avoid

Not a space saver
No 3D/4D Roller Intensity Control options


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What We Look for & How We Rate Chairs Compared to Other Models

Reclining Feature

The chair offers multiple reclining positions, allowing me to find the perfect angle for maximum comfort and relaxation. This feature helps to alleviate pressure on my spine and reduces stress on my muscles and joints.

Intensity settings & Coverage Area

The chair offers adjustable intensity settings and covers a wide area from my neck to my feet, providing relief for sore muscles and promoting blood flow to targeted areas.

Heating Feature

The built-in heating feature helps to increase circulation and soothe sore muscles, providing added comfort and relaxation.

Kneading feature

The chair’s kneading feature is designed to replicate the sensation of a professional massage therapist’s hands, providing targeted relief to specific areas of the body. This feature helps to reduce muscle tension, improve circulation, and promote relaxation.

User Experience & Ease Of Use

The chair is easy to operate and provides a user-friendly experience. The remote control allows me to adjust the settings quickly and easily, ensuring that I can get the most out of my massage experience.

Space Saving

The chair’s space-saving design is perfect for smaller living spaces, allowing me to enjoy the benefits of a massage chair without taking up too much room.

Design and Aesthetics

The chair’s sleek and modern design fits in seamlessly with my home decor, and its neutral color palette makes it easy to match with any room.


The chair comes with a comprehensive 3 Year Limited Manufacturer Warranty (1 Yr. Labor & 3 Yrs. Parts and Frame) warranty, providing added peace of mind and protection for my investment.

Unique Technology & Features

The chair is equipped with advanced technology, including zero gravity positioning and airbag massage, providing a more immersive and customizable massage experience.

Brand Reliability & Support

OSAKI is a trusted brand in the massage chair industry, known for producing high-quality, reliable products. The company provides excellent customer support, ensuring that any issues are addressed promptly and effectively.

Osaki OS-4000T Specifications



Massage Roller2D Quad Style Roller
Massage Roller Track30″ S-Track
Massage Roller Adjustments3 Levels of Speed and Strength
Glute MassageAir Compression
Removable Back PadYes
Body Scan TechnologyYes
Foot MassageFoot Rollers and Air Compression
Zero Gravity ReclineYes
Automatic Programs5 Full Body, 3 Localized
Country of ProductionChina
Massage TechniquesTapping, Clapping, Shiatsu, Rolling. Swedish, Kneading
Stretch ProgramYes
Heat TherapyLumbar
Total Airbags46 Airbags
Airbag Intensity Adjustments5 Levels of Intensity
Calf MassageAir Compression
Ottoman Length AdjustmentPowered
Bluetooth SpeakersNo
UpholsterySoft Synthetic Leather
Timer Setting5 to 30 Minutes
Air MassageShoulders, Back, Arms, Waist, Seat, Calves, and Feet
Distance to Wall20″
Height Range5’2″ – 6’4″
Controller TypesLCD Pedestal Remote, Mini Remote
Dimensions Upright46″L x 32″W x 47″H
Dimensions Recline76″L x 32″W x 47″H
Seat Width20″
Shipping Dimensions52.4″L x 30.3″W x 37.2″H, 38.2″L x 25″W x 14.6″H
Shipping Weight284.4lbs.
Warranty3 Year Limited Warranty

My Personal Experience Using OSAKI OS-4000T Massage Chair

The Osaki OS-4000T is a massage chair that boasts a number of impressive features, making it one of the best options on the market today. As an expert in the massage chair industry, I can confidently say that this chair provides a unique and customized massage experience.

The chair’s ergonomic S-Track massage system follows the natural curve of the spine, providing a uniform, hand-like massage along the neck, shoulders, and mid and low back. This sophisticated design is superior to many other massage chairs on the market which can apply an intense massage in the mid-back area and poorly target the neck and lower back regions.

Inspired by NASA technology, the 2-stage Zero Gravity feature is another highlight of the OS-4000T. The position aligns your back relative to your thighs at an optimal level of comfort, which relieves pressure on the spine and relaxes the neck and back. This feature increases blood oxygen levels, expands lung capacity, and helps correct spinal alignment.

Another new feature of the OS-4000T is the reflexology foot rollers which apply a soothing, kneading style to the bottom of your feet, stimulating the feet’s acupuncture points. This, combined with the airbags located throughout the chair, provides an immersive full-body massage experience.

The computer body scan technology of the OS-4000T allows the chair to customize your massage experience specifically for your body type and size. This translates into a more precise massage that hits all the key areas of your body. The chair also features two heating pads in the lower back region, which enhances your massage experience by increasing the body’s oxygen flow, playing a role in healing damaged tissue, and allowing for a stronger and deeper massage.

The OS-4000T also includes eight auto programs, five expertly crafted full-body automatic programs, two localized programs, and a full air mode. In addition, the six manual techniques, including kneading and tapping, allow you to create your own custom program.

Overall, the Osaki OS-4000T is an excellent massage chair that provides a personalized and comprehensive massage experience. Its features and technologies, such as the S-Track design, Zero Gravity, reflexology foot rollers, airbags, and heating pads, set it apart from its competitors.

What Makes OSAKI OS-4000T Massage Chair Stand Out from the Competition?

The OSAKI OS-4000T massage chair stands out from the competition with its unique features such as its Zero Gravity design which allows for the complete weight of your back to be virtually supported by the backrest, maximizing the intensity of the massage.

It also has a Computer Body Scan which allows for the rollers to map the back curvature with even more accuracy, translating into a more precise massage hitting all the key areas. The chair also has Unique Foot Rollers which provide a soothing kneading style application, Lower Back Heating Pads, and a Wireless Controller.

Compared to Other Chairs

The Osaki OS4000T is the most affordable among the Katana 700 and Inner Balance Jin 2.0 massage chairs, while still offering a variety of features that models don’t have. Unlike the other two massage chairs, the OS4000T doesn’t have an L-Track design.

Katana 700

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The Osaki OS4000T massage chair does not have the same features found in the Katana 700, including Bluetooth connectivity. However, it does have a few unique features that are not available with the Katana 700. These include calf rollers and an L-Track design that provides a deep tissue massage to target areas that other chairs might miss. Additionally, the model comes with a built-in music system that can help you relax while enjoying your massage experience. Unfortunately, Bluetooth connectivity is not available on this model. Therefore, if you are looking for a chair that will allow you to connect your device wirelessly to it, then the Katana 700 might be the better choice.

See Our Review >

Inner Balance Wellness Jin 2.0

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It is important to determine what your exact needs in a massage chair are in order to choose the right chair for you. There is no doubt that both the Inner Balance Jin 2.0 and the Osaki OS 4000T are two worthy choices.
Jin 2.0 has both lumbar and calf heating pads, while 4000T only has lumbar heat massage. The 4000T also has 46 total airbags, while the Jin 2.0 has 42. It features four rollers, has a compact design, is delivered fully assembled, and offers a relaxing experience. It has a large, easy-to-use controller with a variety of zero gravity positions.

See Our Review >

The Osaki OS4000T massage chair is a step above the Katana 700 and Inner Balance Jin 2.0 massage chairs in terms of safety features.

FeatureKatana 700OSAKI OS-4000T
Track TypeL-TrackS-Track
Zero Wall DesignNoNo
Foot RollerYesYes
Zero GravityYesYes
Bluetooth SpeakersYesNo
Lumbar HeatYesYes
Shiatsu Sensei Massage MechanismYesNo

It’s equipped with airbags in the neck and head area, providing additional support for your head during your massage session.

OSAKI OS-4000T Massage Chair Notable Benefits & Features

Most people looking for home massage are attracted to this full body and foot massage chair because of its combination of high-end features, color options, and affordable price. The best-selling Osaki OS-4000T is now in its latest version, and the Osaki OS-4000T features new reflexology foot massage rollers and an improved airbag massage system that is much more durable.

Quad Style Roller

The enhanced massage experience is provided by the extra soft quad-style rollers in the Osaki OS-4000T massage chair, mimicking the feel of the human thumb. For better penetrating effects, the rollers can be adjusted to medium or narrow width according to individual needs. By dredging the main acupuncture points on the back, acanthus, forehead, and top of the head, the rolling manipulation clears collateral channels and dries them out.

Truly Ergonomic S-Track

With the Osaki OS-4000T Zero Gravity Massage Chair, your neck and back, especially the lumbar area, are supported by its ergonomic design following the natural S-curve of the spine. In this position, massage is more effective because it separates the discs of our spine individually and decompresses them, allowing nutrients to enter their tissues.

Lower Back Heat Therapy

The importance of heat in a massage experience has always been well known. As part of the lumbar area of the backrest of the Osaki OS-4000T massage chair, two large heat pads are placed so that gentle heat therapy can be applied to your lower back in an effort to loosen up those muscles that are often tight. As a result, your back massage will be more effective and you will experience much more relaxation.

Leg Scan & Extension

Using the zero-gravity button, you will recline into the first stage of zero gravity and the leg rest will expand to accommodate your legs better. It is an additional part of body scanning technology. This is ideal for taller users who can feel scrunched into the seat. When the leg rest reaches its maximum extension, it will retract again. Press your toes down on the footrest to stop the scan once you have found the position comfortable. By doing so, the airbags continue to massage the correct areas while your legs are comfortably seated within the leg rest.

Shoulder, Lumbar & Hip Massage

Designed to relax your shoulders, hips and lumbar areas, the Osaki Os-4000t massage chair has airbags in these areas. Additionally, these airbags are designed to work in tandem with the back massage rollers, so that you receive a much deeper massage of your back throughout the entire body. In the shoulder area, the shoulder airbags inflate and press your upper back on the backrest, so your back massage is a little deeper here. Similarly, your lower back is massaged from the hips and lumbar areas.

Large LCD Display Remote

Osaki OS-4000T’s remote control has a large backlit LCD display that gives you complete control over your massage. Select one of five pre-programmed massage routines, adjust a few settings and enjoy a personalized massage experience while you sit back and relax. When looking from the fully reclined position, you will be able to see exactly what is happening with your massage experience at any time. Moreover, this remote comes with a mini-remote so you don’t have to strain yourself to reach for the remote to control the chair’s basic functions.

Automatic Programs

A massage chair from Osaki features five automatic programs and three localized programs. There are five automatic programs: Muscle Relief, Thai, Stretching, Anti-Stress, and Demo. The three localized programs only target specific areas: Neck and Shoulders, Back and Lumbar, and Full Air.

Osaki Warranty

During the first three (3) years of ownership, Osaki guarantees that if you find your qualified product defective due to faulty parts, workmanship, or structural defects, they will replace it or repair it at their option, without charge to you. There is a one (1) year in-home labor warranty included with this plan as well as a three (3) year parts and structural framework warranty.

Other Osaki OS-4000T Modifications & Differences



With its LED light control system, the Osaki OS-4000XT massage chair provides an L-Track system with two steps of zero gravity, six automatic programs, and an Ache Sensor that detects the aching point of the user’s body when the arms are inserted naturally into the sensor. 

With the roller system, the neck is massaged first, then the lower back, glutes, and upper hamstrings are massaged. Multiple airbags are located throughout the massage chair to ensure a full-body massage experience. There are 24 airbags on the 4000XT massage chair.

Each airbag is located at the shoulder, arm, foot, and calf region. OS- 4000XT has one spinning reflexology massage roller located on the bottom of the feet, which provides a soothing kneading style application while increasing blood circulation throughout the body to relieve pain and tension. Acupressure points will be stimulated as the rollers spin, while airbags will generate a deeper massage along your feet’s bottoms as they inflate.



It offers space-saving technology, L-Track Massage, Adjustable Shoulders, and Zero Gravity to name just a few of the innovative features of the bestselling OS-4000 Series from Osaki. There is something unique about every chair in the OS-4000 series.

With its latest technology, the massage rollers map out the back’s curvature with great accuracy, resulting in a more effective massage and hitting all the right spots. This highly advanced chair will automatically adjust itself to accommodate any body type, so you will feel as though the massage is tailored specifically to your needs.

Some of the benefits of the Zero-Gravity feature:

  • Ease back pain almost immediately.
  • Increases and stimulates blood circulation.
  • Reduces swelling and minimizes stress.

Because massage chairs are reclined, they typically take up a lot of space. For a massage chair to fully recline, it takes up to 3 feet behind the backrest. Titan’s innovative design team has engineered a space-saving technology that slides the chair forward as it reclines. To maximize space savings, this chair can be positioned within 6 inches of a wall when fully reclined.



Among the most popular models in Osaki’s product line is the OS 4000 massage chair. With its wealth of features and luxury aesthetics, it’s not hard to see why. 

It has an S-Track with an ergonomic design. The first feature of the Osaki 4000 massage chair is that it has an ergonomic design with the S-Track system, which is designed to provide optimal comfort and contour to the spine.

Notable Features:

  • Upgraded PU covering for increase durability and comfort
  • 6 unique Pre-Set programs
  • Easy-to-use Large LCD display remote with wireless remote
  • Two Stage Zero-Gravity positioning
  • Foot, Calves, Arm, Hips, and Shoulder air pressure massage
  • Auto timer setting from 5-30 min. session
  • Five levels of speed and intensity for the massage
  • Seat Vibration Massage

Since spine curvatures vary from person to person, the S-track system provides the rollers with pressure and support without losing them along the way or at either end – a common problem with linear track systems.

As a result, every Osaki OS 4000 massage chair comes with the S-Track system. The Zero Gravity Two-Stage System. In any Osaki OS 4000 massage chair review, the zero gravity feature must be discussed since it is perhaps one of the most interesting and most misunderstood features.



With an L-track style massage chair such as the Osaki OS-4000LS, rollers begin at your neck and wrap all the way down your spine, then wrap underneath your glutes, and then to the bottom of your thighs. Foot rollers and a spring-loaded ottoman have been added to the 4000Ls.

Also included are 24 airbag compression massages, body scan technology, zero gravity, and innovative adjustable shoulder massages. It is equipped with the latest technology to map out the back curvature with great accuracy, resulting in a more effective massage that hits all key areas of the back. You can enjoy a customized massage experience no matter what your body type is because this chair self-adjusts. Due to the fact that massage chairs are reclined, they take up more space.

For a massage chair to fully recline, it must be 3 feet behind the backrest. A space-saving technology developed by Titan’s design team slides the chair forward when it reclines, allowing it to be positioned within 6 inches of a wall. The L-Track system massages the neck, glutes, and back portion of the thighs from the neck to the glutes. The tracks in which the massage heads move are curved to contour the back and glutes.

What Do Users Say About OS-4000T Medical Massage Chair?

“My chair is amazing, I get 10 minutes of massage before work in the morning and 30 minutes of stress relief after work, so yes, I use it a lot, and I might wear it out before long. I wish there were more videos about how to use the chair.”

“It has been a pleasure to use this chair twice, since my daughter owns it and I have used hers a couple of times. Though we live close to each other, I plan to get my own chair soon. If you’re looking for a massage chair, I highly recommend this one to you. Just the thought of getting a full body massage anytime you like, in the privacy of your own home, is a wonderful feeling, so if you’re searching for one, I think this is the one to get.”

Frequently Asked Questions

Who is the Osaki OS-4000T Massage Chair For?

Osaki OS-4000T is an excellent choice if you’re looking for a medium to medium/strong massage, especially for the price. This massage chair is a top seller because it offers several higher-end features and a quality massage at a fraction of the price of most comparable models.

Does this Chair Have a Vibration Setting for Lower and Upper Back?

Yes. A massage chair’s two vibration plates provide a soothing vibration massage that reverberates up your spine, relieving lower back pain and easing tight muscles.

Final Thoughts

There are some improvements to the Osaki OS4000T massage chair, but it still features a stylish and contemporary design like many of the other Osaki massage chairs. The 4000 still features zero gravity, but with 46 airbags instead of 25, primarily in the hips/thighs and upper arm areas, along with mechanical foot rollers…a highly popular feature among massage chair buyers. Additionally, it has a low back heating element and a “Stretch” program. With body scanning technology, the massage is customized based on your body shape and spinal contours.

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Kristina Martin

Kristina Martin attended the University Of Florida and graduated in 2001 from the College Of Medicine. Kristina is a Master of Physical Therapy (MPT). Her focus is to help her clients be as healthy as possible by providing personalized training and advice that is unique to them.
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