Osaki OS-4000 Deluxe Massage Chair Features, Specs And Installation Info


The Osaki OS-4000 deluxe massage chair is one of the bestselling chairs in the Osaki brand. It’s zero gravity feature, the many airbags, the complete body massage and its price make this one of the most sought after chair in the market.

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Osaki os-4000 Deluxe Massage Chair Features

The Osaki OS-4000 often comes as a wonderful surprise to many massage chair buyers.  It has all the features of high-end chairs at 60% less than the cost of the luxury chairs. If you’re looking for an affordable massage chair that does the job just as well as luxurious ones, then the Osaki 4000 should be the first one to look at.

Zero Gravity

The zero gravity feature is one of the main reasons why customers like this chair.  This feature (based on NASA technology) puts you at the ultimate position to relax. Your body weight is distributed equally putting less stress on your spine and back, making relaxation much easier (and nicer). This position in massage chairs also intensifies a back massage.

Body Scan Feature

The body scan is a great Osaki Os-4000 feature to customize the chair to your body height and size. As you sit on the chair, it scans your body height and width as well as your position in the chair and it adjusts itself so that the rollers, the air bags, the leg massager and other massage features are customized to your body.

30-Inch Roller Stroke

For a complete back massage, it can’t get any better than this. The roller massages from the neck to the start of the spine.

Heating Pads

Often a pleasant surprise to many. Some customers don’t really think of heating pads as a top requirement when buying massage chairs. But once they try the heating pads on the lumbar area, they are often happy to know how much it contributes to their feeling of relaxation.

    • Over 6 automatic programs: Healthcare, Relax, Therapy, Smart, Circulation, and Demo
    • Different massage techniques are used such as rolling, kneading, clapping, shiatsu, Swedish, and combo With five levels of speed & intensity. These techniques can be manually combined to make a massage session that you like best (although for many, the automatic programs above do the job quite well already)
    • Auto Timer feature
  • Material: synthetic leather and metal base
  • Recommended User height: 4’11” to 6’3″

Osaki Os-4000 Dimensions

  • Overall Size: 46 L, 32″ W, 47″H
  • Weight: 214 lbs
  • Power Supply Wire: 2.1m
  • Maximum weight capacity: 265 lbs.
  • Seat Dimensions:
    • Seat Height: 22″
    • Seat Width: 22″
    • Seat Depth: 19″
  • Requires at least 31″ of backspace for reclining

Osaki os-4000 Massage Chair Reviews

Read Reviews of the Osaki Os-4000 massage chair from these trusted sites:

Buy Osaki 4000 For Sale At The Best Price

If you buy Osaki 4000 for sale online, you will notice that many of the online shops sell it for the same price. So it really is only a question of two things

    1. Which shop is reputable?
    2. Which ones offer free shipping?

Here are three online shops that have been selling the best massage chairs for many years and are trusted brands:

Available In 4 Different Colors

Black Osaki Os 4000 in Brown
Charcoal Os4000 And many people’s favorite, the Cream colored one



A detailed explanation of the Osaki 4000 massage chair features and specs

A video of the 2 main features of the Osaki os-4000 executive massage chair from massagechairs.com, one of the leading online retailers.


Osaki OS-4000 Executive Massage Chair Specs and Features

Warranty Period 3 Year warranty which includes full coverage of all parts and labor for 1 year, 2nd and 3rd-year parts
Main Features
  • Zero Gravity
  • Rollers
  • Body Scan Technology
  • Auto Recline (recline angle)
yes, chair’s backrest can be adjusted from 115° to 160°
  • Total No. of Air bags
  • Height adjustment
  • Heating Element
yes, in the lumbar area
  • Number of motors
  • Intensity
can be adjusted
  • foot unit
yes, new Os-4000t has additional foot rollers
Massage Features
  • Arm
  • Waist/Hip
  • Leg/Thigh – feet
  • Neck
yes; neck air squeeze
  • Shoulder
yes; air
  • Head
  • Back
yes, with options for spot massage, partial or upward-downward massage
  • Pelvic/Seat
seat vibration available
  • Shin/Calf
yes, air
Automatic Programs Available Healthcare, Relax, Therapy, Smart, Circulation, and Demo
Manual Massage Yes
  • Intensity control/adjustment
  • Memory capability
  • Speed control
  • height adjustment
  • width adjustment
  • Removable Adjustable pillow
  • Removable back pad
  • shoulder massage unit
  • Maximum User Weight
265 lbs.
  • Power Supply
120V AC
  • Power Consumption
  • Colors
Color Combinations: black/beige, brown/black
  • Dimension
Overall Size: 46 L, 32″ W, 47″H (refer to details above)
  • Chair Weight
214 lbs
  • Upholstery
synthetic leather
  • Manufactured Where
  • remote control
yes (with a second smaller one which you can hold in your hand to easily adjust intensity while in sessions)
  • rated time
automatically set on a 15-minute timer; Auto-timer with 5-30 minute programming options

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