Osaki OS-4S JP Premium Massage Review

Osaki OS-4S JP Premium Massage Review


Osaki OS-4S Japan Premium is a masterpiece when it comes to massage chair innovation and functionality. 

It deploys the use of dual ball 4D massage rollers to deliver one of the finest massage experience one can see in the industry. 

Read:  Best 7 Osaki Massage Chairs ON The Market

This Japanese manufactured chair has quality and well thought out design and use as its hallmark.

Osaki OS-4S JP Premium has revolutionized the massage chair industry with its 4D roller design.

For the first time also we have a massage chair that has an extended range of heights.

People who are petite in nature can fit perfectly well without any issues.

Features and Programs


4D Roller Design

The rollers on a massage chair are what determines how effective a massage chair will be. 

The rollers are what is akin to the human thumb used for massage.

 Osaki OS-4S JP Premium has one of the humanistic roller designs there is. 

The 4D rollers are designed to move, vertically, horizontally, in and out and then at a variety of speeds to create the 4th dimension.

This actually mimics the Japanese style of massage which deploys varying speeds to carry out the massage.

There are not many chairs in the market that deploy a 4D massage.

 Osaki OS-4S JP Premium is revolutionary in deploying this mechanism.


Body Scan Technology

Osaki OS-4S JP Premium uses computer body scan technology which maps out all the contours of your body in other to better understand where your acupressure points are located. This scanning method is what enables the chair to accommodate different body types and heights. 

The chair is intelligent in using this technology so it does not assign a one size fits all type of massage.

The Body scan technology in Osaki OS-4S JP Premium is double sensing, meaning it is able to accurately detect your spinal line and your shoulder length. 

This ensures a more accurate massage.


Full body Air Massage

Osaki OS-4S JP Premium presents its full-body massage system with a multi-layered airbag system that is fewer in number but covers much surface area.

With the reduced number of airbags, the chair will last longer and avoid wear and tear that results from the pumps and valves of the airbags.

Airbags are used to massage areas that the rollers in a massage chair cannot reach.

The airbags are located at the following positions

Outer Shoulder: These airbags are attached at the upper sides of the backrest, they inflate and deflate to create pressure that is used to massage your outer shoulder.

It can also serve as a grip to hold you in place while the rollers deepen their massage on your back.

Hand and Arm Massage: The airbags create pressure which is used to massage the hands and the arms. The pressure also ensures that the arms are held in place while the massage is taking place.

Hip Massage: As the airbags inflate, it creates pressure which squeezes the waist to make an impact on the hip muscles. 

This helps to relieve pain and stress.

Calf and foot massage: Osaki OS-4S JP Premium also uses airbags at the feet to massage the calves and the feet. The pressure presses down on the foot, while the back airbags also press on the calves to create a pressure effect that is so enjoyable.


Heat Therapy


Osaki OS-4S JP Premium deploys heat at both the backrest and the feet. 

The heat helps to loosen the muscles for a deeper and more effective massage. 

Most chairs only offer heat therapy at the lumbar region but the Osaki OS-4S JP Premium made a huge difference by also offering heat at the feet.


Auto Leg extension


The Ottoman footrest can easily extend to accommodate different legs sizes. 

This feature is particularly great as it helps to fit the feet to the correct points for the massage. The airbags will not miss out on the calf because of this adjustment.


Easy To Use Touch Screen Remote

The touchscreen slim remote is quite user-friendly and intuitive. It is designed to enable you to access all the functions that this chair has. The keypads are clear and easy to see. The remote also the ability to store you predefined settings for later use

You can choose your preferred massage styles and store it in memory. You just need to press a button to use your stored settings next time you take a massage.


Auto Recline 


Osaki OS-4S JP Premium has one stage zero gravity effect, it can recline to look like a flatbed.

You can achieve maximum weightlessness from this position, you decompress the spine and help to improve blood circulation during the massage. 


Massage Techniques and Styles


Osaki OS-4s JP premium have a boatload of Massage techniques and styles.

It has 25 preset massage programs for your use.

The 25 massage programs are divided into 3 categories

30minute course program 

This program is broken into 4 different parts.

VIP: Focuses on the whole-body massage and ensures that body parts that get tired easily are taken care of.

Sommelier: This course is a slow massage program that starts with a warm-up and ends with a cooldown.

it focuses on the whole body and feels like when multiple people are working on your body, quite luxurious and comforting.

Slow Stretch: This program stretches your whole body from the neck region to the legs. It is deeply satisfying to use especially if you feel like there are kinks in your joints that need to be worked out.

Air relaxation: This course stimulates air massage. The whole body is massaged with the airbag system. It removes all forms of tiredness from the body.

16-Minute Course Program

This program covers the following 

Whole-body massage: This consists of Kiwanmi rejuvenation, rejuvenation, whole body refresh, whole body soft, whole-body relax.

Neck and Shoulder: Kiwanmi rejuvenation, Rejuvenation, Whole-body relax, Whole-body refresh.

Waist Focus: Kiwanmi rejuvenation, Rejuvenation, Whole-body refresh Whole-body relax.

Stretch program: Extreme whole-body stretch, Whole-body stretch, Whole-body air.

Memory Program: Create and store your own customized settings.

7-Minute Course Program

Neck focus: Massages from the neck muscles to the shoulder muscle, it uses a press and release format.

Shoulder focus program: Hard massage around the shoulder area, it uses tapping, kneading and rubbing technique. 

Very good for releasing built-up tensions on the shoulder.

Shoulder blade focus: Attacks the shoulder blades and the pivot muscles of the shoulders with flexing, stretching technique.

Waist focus: Massages with rubbing and tapping from the lower back to the spinal column.

Sciatic focus: Massages by rubbing and tapping technique, it pushes on the hamstrings using the airbag massage.


Massage Intensity and Speed


Osaki OS-4S JP Premium massage chair added speed and intensity as a vital part of this chair because that is what makes the 4th-dimensional part of the rollers.

It has the following massage intensity options.

Airbag Intensity: The airbag systems have 5 different levels of intensity that can be deployed independently to 4 different zones- (arms, shoulders, hips, and feet)

Roller intensity: This can be adjusted from 7 to 12 different levels.

Roller speed: Can be adjusted to 4 different speeds.

Roller Width: It has 3 width adjustments: narrow, medium, wide.


Special Features


Triple Mode air systems

Osaki OS-4S JP Premium massage chair airbag massage systems are highly advance and re-engineered to deliver extensive massage with minimum effort. 

The airbags which are just 34 in number are designed to have the triple mode system. 

This means that the airbags do not just deliver one type of massage like you will see in other massage chairs.

The airbags are designed to deliver 3 types of modes, you can choose anyone you want.

Hand Knead: A Kneading compression massage for your hands.

Pulse: An intense airbag massage that can be applied to anywhere your airbags are attached. For example, if you want to focus on the hips, you can set a hard massage at the hips with this function.

Normal: This the normal air compression you will get in other chairs.


Upper Shoulder Roller Extension 

Most massage chairs usually commence their massage from the shoulder downwards, the neck muscle connecting the neck to the head is usually ignored.

This is a critical place where there is a build-up of stress. 

Hypertensive patients can tell that this is part of the body where you feel pain most.

Osaki OS-4S JP Premium decided to do something about it, the 4Dmassage rollers were extended to reach those critical areas  that will normally be ignored.

This is the most important unique feature of this chair that makes it different from other chairs.

The neck massage makes a whole lot of difference, if you suffer from stress-induced illness, this will help to remove the build-up of stress.


2 Ball Head Massage System


Most massage chairs have only one ball for its rollers, the Osaki OS-4S JP Premium went the extra length to attach a dual ball system to its rollers. 

This revolutionary idea makes it the most human-like massage chair ever. 

As one buyer exclaimed, I have never seen anything like it, he even asked how he ever lived without this chair.

The advanced dual ball system can extend up to 4.9’’ in its 3rd dimension, it also makes use of about 41 kneading styles to carry out the massage.


Memory Setting


There are very few massage chairs in the market that gives you the opportunity to save your favorite massage programs. 

Osaki OS-4S JP Premium does that. With the memory setting, you can save your favorite massage and just push a button to use it later. 

You don’t have to waste timing picking your programs each time you want a massage.


Highly Advanced Back Massage System


Osaki OS-4S JP Premium uses its acupoint technology to map out your back and then divides it into 3 different portions, namely upper back, mid-back and lower back. 

It then uses different massage styles to attack each portion. 

This gives you a wholesome massage that is quite satisfying. 

The innovation is in knowing what style to use for what portion of the back. 

The intelligent system deployed in this chair is quite advanced and is noteworthy.


Deep Tissue Massage

If you are looking for a chair that has extensive deep tissue massage capabilities, the Osaki OS-4S JP Premium is the chair for you.

This is because with its extensive protrusion of about 4.9’’ it will get into deep layers of muscles and treat troubled spots. 

Unraveling tight muscles and providing relief.

Read more about the best Japanese Massage Chairs on the market




The specifications for Osaki OS-4S JP Premium are:

Name Value
Product Name Osaki Os-4s JP Premium
Dimensions Upright: L*W*H= 46.4*30*48Recline:L*W*H=78.7*30*27.6
Power Usage Voltage: 110=120v, Wattage= 130W ,Frequency: 50/60Hz
Recommended Height and Weight 4’11’-6’2’’, 284lbs
Upholstery Superior quality synthetic leather
Weight of chair 164lbs

Warranty and Service


Osaki OS-4S JP Premium offers you a 3-year solid warranty on faulty parts, structural defects or workmanship for the first 3 years of use at no cost to you.

The warranty will not cover willful damage or shipping costs, it will also not cover wear and tear due to usage including zipper malfunction.

 Delivery options for Osaki OS-4S JP Premium include 

 Curbside delivery: Curbside delivery is free and you will have to assemble the chair yourself.

 White glove delivery: This delivery option comes with assembling by the professionals. It has a cost attached though.

 How to obtain a warranty

You would provide proof of purchase.

You should have a return authorization number that will enable you to ship the product to the service center.

You are also welcome to contact the customer service center at Osaki for further clarification.




  • Dual ball massage roller systems
  • Improved airbag massage system
  • Multiple preset programs
  • Extended height range accommodation- fit for petite people.
  • User flexibility with a wide variety of adjustability settings
  • Double heat therapy




  • One stage zero gravity
  • S-track formation.
  • No Sound system, Chromotherapy, and no hideaway, Ottoman.




Osaki OS-4S JP Premium massage chair is a Japanese made massage chair that boasts of high quality, durability. 

Its advanced technological innovations in Roller design, body scan technology, and airbag systems ensures that you do not miss out on any particular need you may be looking for in a massage chair. 

Price: 5999USD

Read more:  Osaki Maestro 4D Massage Chair Review