Osaki OS-4000 Zero Gravity Massage Chair Review 2022

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Last time I reviewed the Inada Sogno Dreamwave Massage Chair, though priced high, comes loaded with rich features. The Osaki OS-4000 Zero Gravity pretty much boasts similar features and comes at a very reasonable price. Its incredible relaxing techniques and excellent massage programs are guaranteed to provide you relief from stress and pain.

It is designed for your well-being and is one of the top selling massage recliners in the USA. Its unmatched features and unbeatable quality are what makes it stand out even from the high priced chairs on the market.

Below I have shared my honest Osaki OS-4000 Zero Gravity Massage Chair review by highlighting all of its features. Take your time to read through this review article and explore what your new massage chair would offer you.

Also, check our list of top 3 Osaki Massage Chairs of 2022.

Osaki OS-4000 Zero Gravity Features and Details

Osaki OS-4000 Zero Gravity

The Osaki OS-4000 Zero Gravity is from the OSAKI brand and is one of their top models. It quickly gives relieve by targeting the stress points and providing a full body massage. Here are some of its immense features to entertain you.

1: Body Scan

The Osaki OS-4000 has an exclusive body scan feature that scans your body using its built-in smart sensors. Once scanned, it feeds the data quickly into its system which then automatically triggers the most suitable massage for your body.

This feature is so intelligent that it also adjusts the rollers to match with the shape and curves of your body including your height and width. In this way, you’ll enjoy a comfortable and relaxing massage.

2: Zero Gravity

It is one of its core selling points. The Zero Gravity technology was exclusively developed by NASA and was later on installed in several applications. This allows the massage chair to recline you in a position where your feet will be on the same level with your heart. Zero Gravity puts your body in complete weightlessness and prepares a suitable posture for ideal massage therapy.

In the zero gravity position, the Osaki Massage Chair works throughout your body and targets the pressure points, helps to increase the circulation of blood and reduces strain on the vertebrae. You have two options of zero gravity. In this way, you can adjust the chair to the perfect position with a simple push of a button.

3: Massage Functions, Styles & Presets

It features four massage functions along with massage styles and presets. The four functions include:

  1. Tapping: The roller gives you the feeling of fingers tapping along the length of the spine. This gives relief from headaches and back pain.
  2. Kneading: During kneading, the rollers create a circular motion that relieves the muscle tension and knots.
  3. Clapping: The rollers work around the muscular tissue and creates the moment of palm patting. This eases the muscle ache.
  4. Rolling: These are very relaxing movements. The roller creates a fluid motion that mimics the human hands of sliding or putting pressure up and down the spine. It warms your muscle gives relief from pain and soothes the stress points.

The massage styles and presets include

  • It offers five massage groups that include healthcare, therapy, and circulation, smart and relax.
  • The exclusive back and lumbar, neck and shoulders and lower body massage functions.
  • Luxurious five massage styles that include Swedish massage, Shiatsu, pulse mode, vibration, and airbag

4: Wireless Control

Unlike other massage chairs that usually have push button controls, the Osaki OS-4000 has a wireless remote and a control panel on the chair. It is user-friendly and easy to adjust.

5: Heat Therapy

A heating unit is installed inside the massage chair that focuses on the lumbar area. During the massage, it activates automatically and gives you a full rejuvenating and revitalizing experience. It also helps to soften the back muscles and eliminate the pain.

6: S-Track Feature

Its ergonomic S-track conforms to the shape of your spine’s S-shape. It works together with the body scan feature to target the problematic areas, especially the neck, shoulders and lumbar region. This makes the massage more effective than ever.

  • Offers Zero gravity positioning.
  • Comes with 30-inch Roller stroke.
  • S-Track to give maximum relief from pain.
  • 48 Airbags that makes the massage more effective.
  • Full body scan.
  • Five levels of speed and intensity.
  • Backed with 3-year solid warranty by the manufacturer.
  • It’s quite a big massage chair and needs enough space to install it.
  • 48 air bags might be less.


Overall, the Osaki OS-4000 Zero Gravity recliner comes with rich features and is a quality product. Not only it has an affordable price tag but also brings about health benefits in your life. You can check out its price on Amazon and decide for yourself based on the user reviews. We rate it five out 5.

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