Osaki OP-4D Master Massage Chair

FREE SHIPPING **All Continental USA**
LOWEST PRICE GUARANTEED **We Guarantee You Won't Find a Lower Advertised Price**
PRICE DROP PROTECTION **If Price Drops Within 30 Days Of Purchase Get Refund For The Difference**
AUTHORIZED DEALER **Buy Direct Savings**
NO SALES TAX **No Check Out Sales Taxes**
FAST EASY FINANCING **Interest Free Installments**
WARRANY INCLUDED **Manufacturer Direct Warranty Included**


OP-4D Master Massage Chair by Osaki


Alleviate muscle tension, reduce stress, and promote relaxation using the Osaki Master 4D+. This new revolutionary massage chair provides advanced features such as a thorough shoulder massage, muscle tension detection, and zero gravity positionings, which can be utilized with the Osaki Premium Master app or a call to Alexa.

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 area 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 through Alexa followed by the predetermined commands in the manual.

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 & 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 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. 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.

Calf Massage
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.

16 Auto Massage Modes

  • Master’s Choice -The master one.
  • Health Pro -Muscle tension detection.
  • Signature -An outstanding massage program
  • Sleeping -Help deal with insomnia.
  • Stretching -Stretch to recover.
  • Spine -Special care on your spine.
  • Deep Tissue -Deal with your muscle aches from spot to spot.
  • Core -Special care for your neck and back.
  • The Golfer -Special care for your lower back and feet.
  • Pilates -Pilates Stimulation.
  • Mobile Mode -Especially designed for smartphone addict.
  • Relax -General relaxation program.
  • Chinese -Chinese traditional massage.
  • Sports -For after sports
  • Morning -To get energetic in the morning.
  • Evening -The most relaxing one before bed.

 4 Manual Massage Modes

  • Kneading
  • Tapping
  • Shiatsu
  • Rolling



Additional Features

  • Side Control Panel
  • Phone Charging Surface
  • Bluetooth Surround Sound
  • USB Charging Port
  • LED Mood Lighting


  • Product NameOP-4D Master
  • User Manual Download
  • Power Supply 110-120V ~
  • Rate Frequency 50/60 Hz
  • Auto Timer 15 Minutes
  • Dimensions (W x L x H) Upright 30.5.” x 68.0“ x 50.5” Reclined 30.5” x 72.0” x 42.0” Width Shoulder 24.5”Seat 18”
  • Minimum Doorway Size 30.5"
  • Weight Net 254.6 lbs
  • Gross 298.7 lbs
  • Maximum User Weight260 lbs



Shipping & Delivery

Please allow a 3-5 days for your order to arrive. We ship products from multiple warehouse locations to bring you the best offers and the lowest prices.

Returns procedure can differ from brands *Mspa brand does not except returns (final sale only), simply contact us for a return instructions and return shipping labels.

Our Return Policy: https://www.purelyrelaxation.com/policies/refund-policy

We Guarantee You Wont Find a Lower Price Online

We work very hard to make sure we are offering the absolute best prices online for relaxation products. If you find another online store that offers a lower price then us please let us know and we try to match or beat their price. We want you to feel confident that you are getting the absolute best price for the product you are ordering today.

If you find that our website has a lower price for the same item you have ordered within the last 30 days of your purchase date we can also refund the difference.

Our Low Price Guarantee has some limitations:

You must purchase the item from our website before requesting your Price Match Guarantee.
Product must be a exact match of model #, features, and any warranty.
Promotions, rebates and buy one get one free offers are not eligible.
The item must be in stock on the competitors website the same day.
The item can not be discontinued, clearanced or a "sold as is" item.
The competitor must be an online store only -they can not have a retail location. This is due to the fact most brick and mortar stores get different manufacturer pricing when they sell in physical stores.
The website can not be a discounter or auction website such as eBay, overstock, Walmart, etc.
The competitor must be an official Authorized Retailer of the product.
The competitor must not be in violation of a minimum advertised price policy set by the manufacture.
The Price Match Guarantee includes the item price and the shipping cost, but it excludes sales tax.

Website Price Drop Protection Guarantee

We want you to feel confident that are getting the best deal without having to worry about missing a upcoming sale or deal! If you find that our website has a lower price for the same item you have ordered within 30 days of your purchase date we will refund the difference no questions asked.

To request your partial refund simply e-mail us a link to the same product on our website along with your name/order # from your past purchase within the 30 day period.

No Hassel or Questions... We Promise!

Why Shop With Us

Free & Fast Shipping

Go ahead, make it yours! FREE shipping on most products in the contiguous U.S.

Low Price Guarantee

Lowest price guarantee! Reach out if you find a lower online advertised price.

Price Drop Policy

30 day price drop protection! Never worry about missing a near future sale.

Authorized Dealer

We are an authorized dealer with manufacture direct warranties.