Osaki OS-4000T Massage Chair Review

Osaki OS-4000T Massage Chair Review

Osaki OS-4000T Massage Chair Review

Massage chairs come in various sizes with various features. What determines what you eventually buy is what your needs are and affordability.

Having a massage experience is a way to promote wellness that is encouraged by all and sundry including medical professionals.

Some intractable pain has been known to be relieved via the use of consistent massages. This is the reason massage therapists are amongst the most sought-after professionals in the US.

Osaki is a foremost brand that has produced a number of massage chairs that are used all around the world. In fact, they are among the top 3 producers of massage chairs.

The Osaki OS 4000T massage chair is among the earlier versions of the various brand of massage chairs that you see today.

While they have gone on to add more capabilities to their massage chairs. The users often cherish these earlier versions because they are equipped with a lot of features that surprise even new starters.

If you're looking for a massage chair that is within a reasonable budget. One that gives you all the comfort of an expensive massage chair. The Osaki OS 4000T massage chair is the chair to beat.



Let's look at the features of this massage chair.

Features of Osaki OS 4000T Massage Chair


The Osaki OS 4000T massage chair has a 30" S-track massage roller system. They enable the massage rollers to travel through the S-contour of the back. It is ergonomically designed to fit the tight curvature of the spine.

The S-track massage rollers system ends at the lower back region and does not extend to the glutes.

There are 3 types of roller tracks that a massage chairs often come with.

The S-track is described above. The L-track; this type of track allows massage rollers to travel from the neck base to your glutes. Unfortunately, it does not fit tightly with the S-curvature of the back.

The SL track, this type of track combines the effects of the above two types to make a massage experience feel customized. Most massage chairs defines luxury according to the type of roller tracks they carry.

The roller tracks are what enables the massage rollers to move to the different part of your back. Massage chairs use the track system to ensure that your get adequate massage.

If your main problem is lower back pain or upper back pain. The Osaki OS 4000T massage chair is the chair to help you with that issue. This is because the massage roller system will guide the rollers through your back.

Massage Rollers


Massage chairs use massage rollers to effectively give a comprehensive handlike massage. The Osaki OS 4000T massage chair features a twin massage roller. It is used for massaging the different parts of the back. These massage rollers run on massage roller tracks.

Massage rollers act like human hands when massaging your body. They use compression and other techniques to deliver an effective massage.

Osaki OS 4000T massage rollers are 2D. This means that they move back and forth on the back of the user. The 2D quad rollers massage is the most basic type of roller you can find on a massage chair. They have 3 different speed adjustments that are controlled by the user.

Other types of massage rollers

There are other types of rollers used in massage chairs. We have the 3D rollers which not only move back and forth but also protrude from the massage at controlled lengths. You will often find these types of roller tracks on mid-range massage chairs.

We also have 4D massage rollers, which are usually found in the highly advanced chair and define luxury. The 4D massage chairs have all the attributes of the 3D massage rollers but with a varying speed of delivery when in motion.

The massage rollers move on the various parts of the back to stimulate acupuncture points that are identified by the body scan technology.

What are acupuncture points? They are points on the skin that are believed to be connected to your central nervous system. When these points are stimulated, they release chemicals into your body systems that promote wellness and healing.

According to the National Institute of Health ( NIH), stimulation of acupuncture points helps in the treatment of dental surgery pain, nausea due to chemotherapy, osteoarthritis, fibromyalgia, low back pain, headaches, etc.

Air Massage Technology

Osaki OS 4000T deploys massage on various parts of the body. These are areas that a massage roller cannot reach. This is done by using air compression massage. The Osaki OS 4000T deployed 38 air compression bags on various parts of the chair to achieve this.

The air compression massage is deployed at the glutes, shoulders, arms, lumbar, calves, feet, and back. These airbags inflate and deflate to produce pressure. This is used to massage these mentioned areas of the body. The airbags now have increased volume and surface area to deliver an effective air massage.

Air massage technology is used to compensate for the lack of mobility of the massage rollers to other parts of the body. It massages using twist and stretch mechanisms on the various parts of the body where it is deployed.

The good thing about air massage is that the users get an enjoyable deep stretch while it is going on.

The airbags stationed at the hip area also help with messaging the hip as it gives an incredible hip air massage experience. Although some people may want to have rollers under the glutes. It is fair to say that Osaki OS 4000T features hip air massage that is also comparable.

You can control the airbag's intensity. This is one of the many good things about this massage chair. It has about 5 levels of airbag intensity control. This means you can adjust the intensity of the air compression massage from mild to strong.

Intelligent Scanning Technology

Massage chairs can only massage accurately when they understand the contour of your back and your unique body makeup. The Osaki OS 4000T is equipped with intelligent body scan technology. This scans your whole back to determine the acupressure points that the massage rollers will pass through.

The massage chair's intelligent scan system makes it possible for each user to have a unique massage that is suitable to their body type. The intelligent body scan is actually called a computer body scan in normal parlance. This computer body scan helps the massage chair to deliver a more precise massage.

This computer scan is also quite important as it calibrates the massage chair according to your body size. The Osaki os 4000t is designed to accommodate people within the height range of 5'2'' to 6'4'' This means that there is a wide range of people that this massage chair can fit. An important reason for the body scan.

The intelligent body scan later metamorphized into a body scan technology seen in the new generation chairs.

Specialized Foot Massage


The foot contains a number of pressure points. This point when massaged can relieve headaches, stomach bloating, and other illnesses in the body. Massage chair makers understand this. That is the reason they deploy reflexology massage for the feet.

The Osaki OS 4000T massage chair features spinning reflexology massagers that are attached to the footrest. These rollers act as foot massagers. They work together with airbags to enable you to get a good foot massage. The spinning reflexology massagers provide a deeper massage. This is because they spin in opposite directions. This ensures that the different pressure points on the feet are dealt with.

The airbags firmly press on the foot as the rollers spin to give a precise massage hitting the acupressure points. The specialized foot massage is located at the footrest. This also provides a soothing kneading style application that will help you feel more relaxed. The unique foot roller of this massage chair is one of the reasons people buy it.

Extendable Ottoman

The extendable footrest or ottoman is a calf and foot massager that extends out of the chair according to your leg length. It houses the calf and foot massager and helps to deliver massage on the calves and feet. The extendable ottoman is a way of ensuring that each user enjoys a foot massage while in the massage chair.

Zero Gravity Position

The zero gravity position relieves pressure from your spine due to spinal decompression. This happens when a person is in a state of weightlessness. Most massage chairs are now equipped with zero gravity positions. This is because it is the best state to have an effective massage.

Here is what happens when your massage chair is in zero gravity, your legs are lifted to your heart level. This state increases blood flow and removes toxins from your body.

Another impact of a zero gravity massage chair is the impact it has on your neck. If you suffer from neck pain, massaging in the zero gravity massage chair helps to relieve the pain. This is because when you are lying down in a zero gravity massage chair, the gravity-induced pressure on your neck is also removed. This keeps your neck well positioned to realign its muscles and relax.

The zero gravity function of the Osaki os 400ot is activated by pressing a button to make the chair auto-recline. There are two positions for the zero gravity effect on the massager chair. The first one is 180 degrees, it lifts your legs to your heart level. The second auto recline is much steeper to give you a better experience.

The Osaki OS 4000T massage chair is a zero gravity massage chair because of the value it offers a user.

Effects of Zero gravity massage chair on your body

Zero gravity massage also expands your lungs and enhances deep breathing which is beneficial to your whole body system. A zero gravity massage chair enhances relaxation because of all the key areas that it impacts in your body while taking a massage. This often brings about a therapeutic feeling that is evident in your body system. Zero gravity massage chair promotes and enhances wellness.

Lumbar Heat Therapy

When you visit a masseuse, they usually apply heat therapy to your body before massaging your body. Why do they do this,? because heat is essential in massage. Heat therapy helps the user to relax while the massage is going on. Heat also loosens up your muscles and makes them pliable. Pliable muscles improve wellness because they can stretch and make your movement more mobile.

Elderly persons that use massage chairs understand the importance of having heat therapy because it encourages mobility and reduces arthritic pain.

Osaki OS 4000T offers heat therapy in the lumbar area of the massage chair. The lumbar heat therapy is directly targeted at the lumbar area to soften the low back muscles. This enables a deeper massage experience. This is especially useful for those who suffer from low back pain and sciatica.

Vibration Massage

The Osaki OS 4000T has a vibration massage that is located on the seat. The seat vibration enables the user to massage the glutes. Vibration massage actually softens and loosens tense muscles on the glutes and the hip.

The Seat vibration massage is a good addition to this massage chair. This is because it mimics the shaking effect that you that massage therapists use. If you have ever watched sports people get a quick massage while on the sports field. You will find massage therapists shaking the glutes to tone them and lose up knots just after an injury.

Vibration massage offers a massage experience that is hard to beat.

Shoulder, Lumber, and Hip squeeze


Most massage chairs often make use of airbag massage for parts of the body like the shoulders and the lumber and even the neck. The Osaki OS 4000T massage chair is not excluded. It uses airbag massage to produce a squeezing effect on the shoulders, arms, and hips.

The airbags inflate to provide pressure. The pressure squeezes the shoulders and other areas of the body where it is deployed. The shoulder air massage is really appropriate for those who have to seat for long hours while working.

Auto Leg scan

The calf and foot massager can extend as soon as you seat in the chair and turn its own. The ottoman will usually extend to your leg's length, The extensions continue until your leg has adjusted to a comfortable position.

The Osaki OS 4000T carries out this function via an auto leg scan. Once the extension has reached your comfortable leg length, firmly press your feet down to stop it from continuing. The auto leg scan is designed to help users adjust their feet comfortably in the massage chair.

This feature is useful to those who have long legs, it is a feature to consider when buying a massage chair.

Auto recline

The Osaki OS 4000T is a powered chair. This means that it does not use a manual mechanism for reclining or adjusting the massage chair. It is one of the mechanically sound massage chairs that has been built to be easily operated by the user.

At the push of a button on the remote control. The chair reclines effortlessly with ease. I don't know about you but I want to use a massage chair that is not stressful to operate. Stress defeats the whole purpose of getting a massage chair.

Ability to easily recline and seat up in a massage chair counts when you want to buy a massage chair

Massage Programs

Massage programs are essential for massage chair users. This is because they determine what a user can do with their massage chair. The Osaki OS 4oooT has 5 full body auto massage programs and 3 localized programs. The 5 auto massage programs include demo, relax, therapy, smart, and relaxation.

It also offers manual massage programs. These include techniques such as tapping clapping, kneading, rolling, shiatsu, and Swedish massage.

When it comes to manual massage programs, understanding what each massage technique does is important as it enhances the use of your massage chair. Let's define each one

Manual massage programs

Shiatsu massage: This massage technique uses thumbs, fingers, elbows and even knees to apply pressure on acupuncture points on the body to release stress and alleviate muscle tension from the body.

Rolling massage technique: This massage technique releases muscle tension, increases flexibility, and loosens the skin.

Swedish massage: This type of massage involves many techniques. Such techniques include tapping, rolling, kneading, and percussion to energize the body and eliminate pain.

Kneading massage technique: This technique compresses soft tissues. It also works in a circular motion, pulling, and compressing inner tissues to deliver a deeper massage.

Clapping technique; This massage technique forms a vacuum via the use of the cupping method. When performed on the upper body, it aids expectoration and clears the lungs

Tapping: This massage technique relieves soft tissue pain. It happens via the application of short-duration taps to the body.

With these distinct manual massage techniques, you can perform a spot massage using a specific massage technique. This technique is directed to a particular spot where you have issues. This feature allows the user to pinpoint the massage rollers to a specific spot where they want to concentrate on. You can also set it to partial massage. The partial massage concentrates on massaging specific regions of your back.

Remote Control

The remote control of a massage chair is one component that is quite important for a user. This is because it determines how quickly you will get accustomed to using your massage chair. Osaki OS 4000T has a very wide tablet-like LCD remote control.

The LCD remote has very clear buttons for controlling the massage chair. It also comes with a small mini wireless controller located in the main remote control. This is to make it easy for you to control the chair when you do not want to get up to use the bigger remote control.


Osaki OS 4000T massage chair offers a 3years solid warranty that covers parts and labor. This means that if your massage chair malfunction within the first three years. You can replace it. If any of the parts malfunction, they can be replaced and you do even have to pay for the labor of replacing them. If you want an extended warranty that lasts 4 years or 5 years, you can purchase an extra year or 2 years at a minimal cost to you.


Osaki OS 4000T massage chair is a great massage chair. It has all the features you can desire in a chair that is within the prior model. One of the reasons I love this massage chair is because even though it is a precursor of more highly advanced chairs. It contains a lot of features that make it look like a luxury massage chair. If you are interested in buying a massage chair with enough features, low cost, and still meets your needs. This is the massage chair to buy. It costs about $2499.00


The Osaki OS 4000T has the following specifications

Dimensions Upright 46"L x 32"W x 47"

Dimensions Recline 76"L x 32"W x 47"

Seat Width 20"

Weight 244.8lbs.

Recommended Weight 265lbs.

Shipping Dimensions 52.4"L x 30.3"W x 37.2"H, 38.2"L x 25"W x 14.6"

Shipping Weight 284.4lbs.