Osaki OS-4000T Massage Chair Review

What We Like👍

  • Foot roller addition dramatically improves foot massage
  • Great massage variety
  • Full screen remote display makes it easy to control chair
  • Chair pitch reclines beyond 180 degrees during second zero gravity stage
  • 2-in-1 neck massage. The neck can be massaged using the pillow fitted with airbags, or the entire padding can be flipped over the back of the chair to receive a firmer neck roller massage
  • Ideal for those seeking a mild to mid-strong massage pressure

What We Don't Like👎

  • Even with the 2-in-1 neck massage, there are better options if a top notch massage in that area is a priority
  • Shoulder airbag housing can be too narrow for someone who has broader shoulders
  • If a deep tissue massage is required, look elsewhere
We wanted to take the opportunity to write a review of the Osaki OS-4000T Massage Chair. The OS-4000T is one of our best sellers and, as such, we wanted to discuss the chair’s features in detail.

About Osaki

The OS-4000T is manufactured by the Texas-based Osaki, which is a popular distributor for massage chairs. Osaki boasts a product line of over a dozen different massage chairs with a wide array of features and prices ranging from their entry-level models all the way up to $8999 (Osaki OS-Pro Maestro). Osaki has been in business for over a decade and is widely regarded as one of the leading massage chair companies in the United States.

Osaki is known for their sturdily built massage chairs and the Massage Chair Deals team has personally used their massage chairs for years with little, if any, issues. If an issue ever does pop up, the company is also known for their stellar customer service and are always just a phone call away with their knowledgeable support. It is just one of the reasons that Massage Chair Deals offers their entire product line for our customers to purchase. Quality is one of the primary factors our team looks at when we choose what massage chair companies to partner with, and Osaki is all quality.

Zero Gravity Recline

The Osaki OS-4000T features a two-stage Zero Gravity recline which — at its maximum recline pitch — positions the chair well past 180 degrees.

This NASA-inspired feature evenly distributes your weight across the chair and promotes a “weightless” feel, much like astronauts experience when they transport up to space. This stress-relieving position delivers a firmer roller massage than when you’re in the upright position due to your body weight being on top of the rollers. The Zero Gravity position also allows for deeper spinal decompression, decreases stress on the heart, and expands lung capacity.

Recommended User Height & Weight

The OS-4000T is suggested for users up to 6’3″ in height and weighing up to 265 pounds. Because of this tremendous variance, the chair scans your body when a program is selected so the massage is customized for your unique height and weight. Whether you’re 5’5″ or 6’2″ and weigh 130 pounds or 220 pounds, it will personalize the massage just for your body frame.

Despite the suggested user height and weight, this model is primarily designed for smaller frames, but once in the Zero Gravity position, we’ve found that it comfortably fits most body types due to its automated footrest.

For all the features this chair offers, it's largely considered one of the best value massage chairs for the price.

New Addition: Foot Rollers

New to the OS-4000T is its excellent foot rollers massage. This feature was just newly added to chair by Osaki within the past few years due to popular demand and it really gives the chair a whole new feel. This is also why the chair was renamed as the Osaki 4000T; prior to the foot rollers addition, it was referred to as the OS-4000. The massage targeting the feet and calves comes equipped with spinning rollers on the soles of your feet in addition to the 6 air massage airbags that inflate on the sides of the feet and the 8 airbags that deploy around the calves.

S-Track Roller Mechanism & Airbags

As for the back, the OS-4000T comes with a 30 inch back roller that covers the upper back all the way up to the upper glutes. In addition, airbags are deployed around the shoulders, head, lower back, the side of the seat, and the seat cushion itself. The OS-4000T also has a total of eight airbags that deploy around the arms and hands when you insert your arms in a special “pocket.” This provides a rejuvenating massage for your arms and hands. The chair has 38 airbags in total for complete body coverage.

The combined total of the airbags and rollers provides an excellent mid-strength range massage that specifically targets the arms, head, lower back, feet, calves, hips, and shoulders as the seat itself vibrates.

Lumbar Heat & Wireless Remote

Another useful feature is the OS-4000T’s lower back heat. Research has shown that lumbar heating is effective in promoting oxygen flow and loosening tight muscles. It also forces your body to stay firmly against the backrest in order to maximize your massage session. It also makes a great, relaxing feature during the winter months as it warms up the body. That, combined with the Zero Gravity position and the great massage makes for the perfect one-two punch.

Also new with the OS-4000T is that it now comes with a wireless remote. This wasn’t available on the chair’s old model. This is useful so that you’re able to adjust the massage features to your liking without having to abruptly halt your massage session to play with the full size remote.

Auto Programs & Manual Massage

All the features listed above are completely customizable. You can use any of the chairs feature to your liking by adjusting the speed of the rollers, the massage’s pressure intensity, and the width of the rollers. It will take a few sessions to perfect your massage because of the vast amount of features this chair offers, but we were able to get to churn out a great massage within a few attempts when we first put it to the test.

If you’re looking for a customized massage for just the lower back or the neck and shoulders, you can also use the remote to target just one area of the body. It’s a completely versatile massage chair that’s designed to target the troubled areas where you need a massage most.

The chair comes with six out-of-the-box auto programs (Healthcare, Relax, Therapy, Smart, Circulation and Demo). In addition, the chair’s manual mode offers the popular Shiatsu, Swedish, Kneading, Clapping, Rolling and Combo techniques.


The chair is available in a wide array of colors to match your room’s decor, including black & beige, brown & black, and taupe.

The Osaki OS-4000T retails for $3199, but is currently $2499. For all the features this chair offers, it’s largely considered one of the best value massage chairs for the price.

The $2499 price also comes with a three-year limited warranty from Osaki. For our customers within the contiguous United States, we also offer completely free curbside shipping. We may at times also offer additional discounts during the year. We recommend calling us toll-free at 844-862-4391 and ask if we’re offering any specials. A friendly customer service representative is available 24 hours a day.

MassageChairDeals.com is an authorized Osaki vendor.
Osaki OS-4000T Review: 4.7 out of 5 stars.

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