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Osaki OS-4000T Massage Chair Review

Osaki OS-4000T Massage Chair Review

Osaki OS-4000T Zero Gravity Massage Chair Review

The Osaki OS-4000T massage chair is quite a unique model within the Osaki line-up. It has a great price point at $2895 with a feature list that can compare to most higher-end models, and that far surpasses any other model in the same price range, making it pretty clear to see why it's always a top seller! Allow us to provide some first-hand information about the chair's performance so that you can decide if it meets your needs. Let's get started!


The OS-4000T has a sleek and modern exterior that houses its advanced technology, which comes in four distinct color patterns; Brown & Black, Charcoal & Beige, Cream & Beige. The remote is large, and very easy to read when you are sitting back enjoying your massage, it also has a smaller secondary remote that detaches from the main one so you can control some of the basic functions while lying back.

Many will be quite impressed when they first sit down in the chair. It is very comfortable. The fabric in the armrests and on the head/neck pillow is very soft and much plusher than expected. The massage is somewhere between a mid-strong and strong massage, and there is a back panel of extra memory foam that you can take out to get a stronger massage if you wanted or leave in place for a gentler massage.

When You First Sit Down

Our floor model here was the black with the beige color and is pretty easy on the eyes when you look at it.
When you sit down and turn the chair on to start your massage, it immediately starts to recline back and scans your back. For your first massage, you should definitely experience the zero gravity position. So just press the "Zero-G" button and recline into the super comfy zero gravity position. Pair this with the auto program called relaxation and your first massage will highlight the features of the chair.

Relaxation mode can feel like a mix of shiatsu and a kneading massage, which can be very relaxing and an accurate simulation of a massage performed by human hands. You can also turn up the back massage intensity from the remote with relative ease.

Disclaimer for Bigger Users

If you're taller and/or broader, like a 6'2", 260 lbs male with broad shoulders, this chair can be a snug fit when the air massage kicks in. You may need to turn the airbag intensity all the way down because the tight squeeze might make you feel uncomfortable or cramped. So, if you are wider in the shoulder area, consider moving up to a larger or more accommodating massage chair for the extra room and added comfort. You can find a list of massage chairs for larger individuals here.

Air Bag Massage System

While I am on the subject of squeezing, the air massage (once I turned it down) was very nice, the armrests are more ergonomic than some of the other massage chairs I have experienced, which lead to a much more relaxing massage on my arms. Within the waist area there was a lot of action, airbags on the sides and underneath the seat squeezed my hips and pushed me back on the rollers a little bit, which was nice. The legs and foot massage were mild, which wasn't ideal but overall I enjoyed the air massage part of my experience.

Zero Gravity & Heating Options

The Zero Gravity function is available at the push of a button on both the large remote and the smaller secondary remote. I only went into the first stage of zero gravity for my massage, which was a very comfortable position. I understand why they added it to massage chairs, there was no stress on my joints and I was very comfortable which helped me relax even more.

About halfway through my massage I saw the heating button on the larger remote and decided to incorporate that into my massage (Something I wish I had done from the start). The OS-4000T has two heating pads in the lumbar area of your back so the heat reaches from your lower back to your shoulders. If I was a smaller person I probably would have felt the heat all the way up, but It stopped at my shoulder blades. The heat was amazing, and was the perfect amount of relaxing warm, instead of so hot that you start to sweat. Should you decide to buy one for yourself, start the heat therapy at the beginning of the massage. (You'll thank me later).

Easy to Use Remote

The remote is a very large display, all the way back in the zero gravity position I had no trouble reading it and seeing what was going on with my massage at any given time. All the buttons are large and thoughtfully laid out, with the manual adjustments hiding under a center flip-down panel.

What I liked most was the mini remote! As you recline back you can slide it off its magnetic tray and have convenient control over the basic function of the massage chair, like positioning, massage speed, and air massage intensity. It made it very easy to bring the chair back up from zero gravity without having to stretch at all to press a button on the main remote, very convenient and very user-friendly.

The End of Relaxation

Each of the automatic programs last for 15 minutes, when they are finished they automatically recline you back up into the seated position so you have no issues getting out of the massage chair. All in all a very good massage chair, definitely worth the money. Especially if you take advantage of the $200 Discount. This is easily one of my new favorite massage chairs, the massage is a very realistic style and the chair is an amazing value.

A Word on Shipping

The massage chairs are not too difficult to put together if you are comfortable with furniture assembly and following instructions. Having seen the boxes that this massage chair comes in.. (there are two of them, they are very big, weight about 200 lbs and come on a pallet) Unless you have a couple of strong friends or relatives to carry these boxes into your home and set up your massage chair, get the white glove delivery, it will save you plenty of headache and back strain, and will make for a much better experience with your massage chair.

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