4D Master Massage Chair, by Osaki

Osaki 4D Master Massage Chair

Alleviate muscle tension, reduce stress, and promote relaxation using the Osaki 4D+!

This new revolutionary massage chair provides advanced features such as a thorough shoulder massage, muscle tension detection, and zero gravity positioning, which can be utilized with the Osaki Premium Master app or a call to Alexa.

Osaki OP-4D Master Massage Chair Features

Thorough Shoulder Massage   The Osaki Master 4D+ proudly introduces the first ever over the shoulder massage using airbag compression that rotates and moves like real hands. There are a total of 10 individual airbags that synchronize to deliver a soothing massage.
	Shoulder Massage Nodes   There is an extra massage node on each side of the shoulder pad to emulate an element of a hand massage on your shoulders.
Automatic Shoulder Adjustment   The chair uses an automatic body scan to detect the user's shoulder height and width, and then automatically adjusts the position of the massage rollers accordingly to provide a more effective and personalized massage.
	Muscle Tension Detection   The Osaki Master 4D+ utilizes its perceptive health pro program to detect any tension in your torso area. Using AI technology, the chair will tailor a massage program to your specific needs since every user has its own needs and body types.
Smart Voice Control	The Osaki Master 4D+ has Voice Control capabilities. The commands can be used through Alexa, followed by the predetermined commands in the manual.  Voice Control may be only used through Alexa devices   or the Alexa app on your phone.

	App Control   If you have an iPhone or Android, go to the App Store or Google Play Store to download the Osaki Premium 4D + Master App to control the massage chair with the full features from the remote on your phone.
	Touchscreen Controller   The Osaki Master 4D+’s touchscreen controller allows for easy navigation and adjustment settings. Using its swivel mount, the touchscreen can be conveniently positioned at different angles.
4D + Massage Mechanism   The Master is a four-dimensional massage chair with 4 levels of intensity and 5 levels of intensity, strength, and speed. The Master is also efficient in spot-treating or partially massaging the back area.
	Attachable Magnetic Pillow   It is recommended to attach the pillow to the side of the chair before starting a massage to receive a proper shoulder massage.
Made up of Laser-Crafted Steel, the SL-track allows the massage rollers to freely reach the entirety of your body. The SL-Track extends all the way from your neck and shoulders to your hamstrings.	Negative Oxygen Ions   The Osaki Master 4D+ is incorporated with built-in negative air ionization therapy. According to research, negative air ionization therapy helps relieve stress and improve energy.

Zero Gravity Reclining and Space Saving   With the Osaki Master 4D+’s one stage zero gravity reclining, encounter relaxation in a state of weightlessness. This essential technology was originally developed by NASA. Osaki’s Space Saving Technology allows for the chair to be placed 3 inches from the wall and still achieve a full recline.

Lumbar & Feet Heating   The Osaki Master 4D+’s lumbar and feet heating system takes advantage of its heating coils to effectively warm and alleviates soreness along the lower back and feet.   *The heating pads provide warmth in the range of approximately 75 - 83°F
The Osaki Master 4D+ was designed for users of different heights and body types. The chair’s automatic Extendable Footrest elongates up to 8 inches to adjust to any user in mind.
	The Osaki Master 4D+ utilizes calf massages to relax tensed leg muscles. The massage includes a sequence of kneading rollers that move vertically and airbag compression therapy to give a thorough massage to the calves.
The Osaki Master 4D+’s Specialized Foot Rollers were created to activate a series of acupuncture points using scientifically designed reflexology ridges. The foot extenders hold three rollers for each foot, to help give a complete massage from heel to toe.

 

Osaki Master 4D+ Full Body Massage Chair Specifications

Item Details
Power Supply	110 - 120V
Rate Frequency	50 / 60Hz
Chair Dimensions (W x L x H)	Upright 31.5" x 68.0" x 50.5"   Reclined 31.5" x 72.0" x 42.0"
Chair Weight	254.6 lbs
Width	Shoulder 24.5"   Seat 18"
Minimum Door Width	31.5"
User Maximum Weight	260 lbs
Package Dimensions (W x L x H)	Box 1 55.3" x 33.9" x 50.0"   Box 2 23.4" x 20.3" x 22.4"
Package Weight	Box 1 249.1 lb   Box 2 49.6 lb

4D Master Massage Recliner Dimensions

Osaki 4D+ Master Wellness Chair Video

Alexa Easy Setup Guide

 

4D+ Master Electric Massage Chair Downloads

User Manual

4D Master Massage Chair by Osaki Buyer’s Guide

The 4D Master Massage Chair by Osaki is an advanced full-body recovery system designed to deliver precise therapeutic relief at home. Engineered with an intelligent body scanning framework and a comprehensive SL-track, this premium chair targets deep muscle tightness from the neck down to the hamstrings. By utilizing sophisticated mechanical rollers alongside full-body compression, it effectively mimics the hands of a professional therapist to alleviate tension and promote deep relaxation.

Advanced Rolling Mechanism and 4D Technology

At the center of the chair's therapeutic delivery is the next-generation rolling mechanism. Unlike standard fixed tracks, these multi-directional rollers move along an extra plane of depth to adjust intensity, speed, and width dynamically. This specialized setup performs realistic kneading, tapping, and shifting motions that press deeply into muscle tissue. By modifying the roller depth across multiple levels, users can target stubborn knots in the upper back and lower lumbar region with maximum precision.

Ergonomic Compression and Integrated Seat Setup

To ensure total body alignment and continuous contact with the massage mechanisms, the chair features a fully contoured seat design. A network of forty-six strategically positioned air cells envelops the shoulders, arms, waist, and pelvis to apply rhythmic compression. This stabilization forces the body back against the main track, optimizing the pressure applied by the back rollers while gently increasing circulation to the lower extremities.

NASA-Inspired Zero Gravity and Medical Relief Concept

The engineering behind this wellness chair incorporates a specialized zero gravity reclining feature that holds the legs above the heart line. This posture effectively distributes body weight, which dramatically lowers spinal compression and mimics the physics of weightlessness. Clinically recognized for reducing lower back stress and relieving pressure on the joints, this medical concept helps maximize blood flow and enhances the efficiency of the heated lumbar pads during long therapeutic sessions.

Two-Wheeled Mobility and Space-Saving Frame

Moving a heavy luxury appliance around the home is simplified by a built-in two-wheeled base located at the rear of the frame. This mobility feature allows users to tilt and pivot the chair carefully when adjusting room layouts or sweeping the floor beneath it. Furthermore, the modern space-saving engineering ensures the frame requires only three inches of clearance from the wall to transition into a full recline, keeping the footprint highly efficient.

Intelligent Scanning and Adaptive Walker Customization

To accommodate various body types, the chair relies on an automated computer scan that measures the exact curvature and width of the user's spine before starting a session. The system also includes an extendable footrest that elongates up to eight inches to adapt seamlessly to taller individuals. This structural adaptation ensures that whether a user is tall or short, the compression pads and foot rollers remain properly aligned to target specific reflexology points from heel to toe.

4D Master Massage Chair by Osaki Review

The 4D Master Massage Chair by Osaki represents a powerful combination of modern engineering and high-end physical therapy. With its dynamic multi-axis rollers, comprehensive air cell matrix, and efficient space-saving recline, it offers a thoroughly customizable approach to home wellness. By prioritizing anatomical accuracy and deep tissue relief, this premium chair serves as an excellent investment for anyone looking to alleviate chronic pain and improve overall daily relaxation.