Osaki OS-4000 Executive Zero Gravity Review

Osaki OS-4000 Executive Zero Gravity ReviewThe Osaki OS-4000 one of the Best Massage Chairs in the online market for all good reasons. It is competitive priced, well-designed massage chair which has huge range of features to meet your needs. It is best suited for different settings, along with personal use.

It can easily fit to your massage parlor. To recall, it has airbag technology so it can give you the experience of a real masseur and it can provides sensitive touch. It reduces the gravitational force on your back to give you intense relaxation.

Along with it, body scan feature is an added advantage, which gives great level of personalization, which is important to improve the quality of massage.

Key Features

Computerized Body Scan

It features integrated body scan hardware/software to map the curves of your back. It provides massage with added precision and it gives more recovery and healing with the use of the chair. Push the auto scan control button to activate the auto scan and it will position rollers as per your height.

S-Track System

Like body scan, S-Track system refers to the chair is made to fit the back of the user with added efficiency and accuracy to provide better overall performance and great healing outcomes.

Airbag Massage

The airbag massage technology in OS-4000 enables chair to get different level of massage on the calf, arms, feet, and shoulders. The later versions had great number of airbags, i.e. with around 48 airbags at one stage. But the latest model has 38 airbags and improved power efficiency, pressurization and materials for better performance and smoother massage.

2 Stage Zero Gravity

One of the most anticipated features in this massage chair is zero gravity. It is a concept which is discovered by none-other than NASA and is now applied in various technologies. It means it reduces the compression exerted on the spine when your body is in specific portion (i.e. feet higher than heart and a torso to leg angle). It is still applied to human beings using a massage chair, rather than astronauts who have to deal with extreme gravity.

Lower Back Heat Therapy

OS-4000 comes with lumbar heating which is placed well in the lower back. It doesn’t have heating for feet massage as you might get from anything which is more affordable as compared to higher range massage chair. It has two separate units of heater, positioned on either side of lower back.

  • Body scan
  • Various exclusive features
  • Zero gravity
  • Competitively priced
  • Wireless controller
  • Great warranty covering most settings
  • Bulky and large, like other mid to high range massage chairs in the market
  • Not suitable for people taller than 6”3’ height
  • Lacks roller massage feature in foot massager


In a nutshell, Osaki OS-4000 is a great solution for most of us who are searching for mid to lower range massage chairs. It has some great features you will love and Zero Gravity is an added advantage.

Buy Osaki OS-4000 Zero Gravity Executive Fully Body Massage Chair, Black
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