The superb construction and equally outstanding performance as a full body massager are the main draws of the Osaki 4000 Executive Zero Gravity Massage Chair.

Large enough to accommodate your whole body in one massage session, this massage chair is just right for your budget, since it comes with a reasonable and affordable price tag attached to it.

No wonder it remains to be one of the top 5 best massage chairs (and one of the best selling, to boot), in the market today.

Osaki Os-4000 Massage Chair
Osaki Os-4000 Massage Chair
Check on Amazon

Osaki OS 4000 Specifications

  • Dimensions: 46 X 32 X 47 inches
  • Machine Weight: 215 lbs
  • Weight Capacity: 265 lbs
  • 6 Auto Programs, 6 Massage Types
  • Stroke Length: 26’’
  • Intelligent 4 Roller System
  • 32 Air Bags
  • Five speed and intensive levels
  • Limited Warranty: 1-year labor, 3- year parts & frame

Why Choose Osaki 4000 Executive Zero Gravity Massage Chair?

If you are on the lookout for a massage chair that will give your whole body a workout – from your neck down to your calves and feet – without breaking the bank, then this massage chair is the best choice for you. Known for its versatility, this massage chair is very user-friendly, with many settings that are very easy to configure, depending on your needs. Usage is further made easy, since it is also engineered to automatically adjust to your body.

Choosing the Osaki 4000 Massage Chair will also give you great value for your money, since you get a massage chair chock-full of features and pay only less than half of what you normally would on other massage chair models or brands. It is well-constructed, and comes with durable and high-quality parts, on top of a 3-year factory warranty, which you’ll get upon purchase.

OS 4000 Features

There are a lot of reasons why the Osaki 4000 Executive Zero Gravity Massage Chair is a popular choice among many people looking for a very good massage chair. Take a look at the following features to see for yourself why it also happens to be one of the best massage chairs currently available today.

Zero Gravity Design

This massage chair boasts a zero gravity design, using a set of S-track movable intelligent massage robot that will automatically detect the curve or shape of your body, and adjust accordingly. This also allows special attention to be paid to your neck, shoulder, and lumbar area, where you most often need a massage.

Six Auto Programs

You can have your pick out of the six unique auto-programs of this massage chair, namely Healthcare, Relax, Therapy, Smart, Circulation, and Demo.

Three Manual Massage Modes

If you opt for a manual massage on your upper body, there are three options available: Full Body, Partial, and Fixed modes.

Six Massage Styles

The Osaki 4000 Massage Chair also features six massage styles to suit your particular needs and preferences. Choose from among Rolling, Kneading, Clapping, Shiatsu, Swedish, and Combo, or a combination of any of the various styles.

Five Speed and Intensity Levels

You can also easily adjust the speed and intensity of the massage session, since it has 5 levels you can work with.

11-Motor System

The powerful 11-motor system of this massage chair supports all 32 air bags, strategically placed to provide air pressure on various parts of your body. 10 air bags are allocated for your feet, 10 for your calves, 3 on the seat for your buttocks and lower back, 2 for your upper and middle back, 2 for your shoulders, 3 for your neck, and 2 for your hips.

Neck & Shoulder Massage Feature

To ensure a full body massage, a neck and shoulder massage feature was added in this chair.

Osaki OS 4000 Zero Gravity Massage Chair
Osaki OS 4000 Zero Gravity Massage Chair
Check on Amazon

Ultra – long range massage

The massage stroke length is up to 30 inches – that’s only for higher end massage chair. This ensures that the more area of your back is massaged.

Intelligent 4 Roller System

It will provide a varied massage and a very lifelike massage.

Body Scan

This technology allows the Osaki 4000 massage chair to detect the pressure points and deliver appropriate massage to the stressed areas.

Recline function

This massage chair can recline 143 to 148 degrees in Zero Gravity design and 155 degrees in full recline that provides maximum relaxation and optimum massage experience.

Lower Back Heat Therapy

No need to spend on heat therapy for your lower back, since this massage chair also comes with a heat therapy configuration that especially targets your lower back.

User-friendly interface

Configuring this massage chair and choosing the appropriate settings is facilitated by the LCD display and wireless mini remote controller. Setting up your massage session is also simpler, because you can simply utilize its 20-minute Auto Massage modes.

Attractive design

The overall design of the Osaki 4000 Executive Zero Gravity Massage Chair ensures that it won’t look out of place when set up in the middle of your living room or even at your office. Since it is made of cool synthetic leather, you can rest assured that you will get years of use out of it without worrying about it becoming easily becoming worn from frequent usage.

User height and weight

The suggested user height for this massage chair ranges from 5’2” to 6’4”, while it can hold user weight of up to 265 pounds.


The addition of the neck and shoulder massage feature is definitely a good move on the part of the makers of this massage chair, easily complementing the lower back heat therapy feature that comes with it.

The auto programs and massage modes certainly make it easier for you to choose your own massage workout, as well as set it at a pace and intensity that you are most comfortable with.

Whether you want to recover from fatigue and de-stress, or to obtain relief from pain and aches, or you want to get long-term health benefits, the Osaki 4000 Executive Zero Gravity Massage Chair will do it all for you.


If you have limited space in your home or office, you will find this massage chair to be a bit large and thus take up a lot of space. You should also take into consideration the fact that, when reclined, it will take up even more floor area.

Those who are suffering or recovering from serious injuries to their calves will also find the chair’s calf massagers a bit too intense to the point of pain.

Osaki OS-4000
Osaki OS-4000
Check on Amazon


Just because you are bound by budget constraints does not mean you should settle for a massage chair with inferior features. Thanks to the Osaki 4000 Executive Zero Gravity Massage Chair, you will be able to enjoy the amazing features found in the more expensive models at only a fraction of the price! Now get that full body massage that you so need and deserve, in the comforts of your own home!

Leave a Reply