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Osaki OS 4000 Massage Chair Review

Osaki OS 4000 Massage Chair Review: Durable + Lots of Features

By Maurice

Osaki OS 4000 Massage Chair Review

Are you thinking about purchasing a new massage chair, but aren’t sure which one to buy?

If you’re looking for a high-quality massage chair that will last for years and help you relax, then consider purchasing the Osaki OS 4000 Massage Chair.

Osaki is one of the most-trusted massage chair brands on the market. What’s so great about this massage chair? Why should you purchase it? Are there any other massage chairs that you should consider?

Check out this Osaki OS 4000 Massage Chair review to learn everything you need to know about this massage chair.

Osaki OS-4000 Zero Gravity Executive Fully Body Massage Chair, Black

Please click image for more info

What We Like:

  • Reduce anxiety
  • Loosens sore muscles
  • Multiple massage programs
  • Automatic adjustments
  • Adjustable widths

What We Don't Like:

  • Heavy
  • Not for young users

Our Conclusion: While there are several good alternatives available, the Osaki OS 4000 massage chair is tough to beat when it comes to features, specifications, and affordability.

Features of Osaki OS 4000 Massage Chair

The Osaki OS 4000 Massage Chair is available for $1699.00, making it a relatively affordable massage chair. It also comes with many different features that make the price well-worth it.

Here are some of the main features of the massage chair:

Two-Stage Zero Gravity Function

One of the most enticing features of the Osaki massage chair is the two-stage zero gravity function. Inspired by NASA, zero-gravity technology allows your body to recline into a neutral position with the press of a button.

Zero-gravity massage chairs take pressure off your spine so you can have a more relaxing massage. The Osaki massage chair offers two-zero gravity reclining levels. The second level places your legs above your heart so you can experience better circulation and a more intense massage.

Ergonomic S-Track

Another important feature of the Osaki massage chair is the ergonomic S-track. When a chair is ergonomically-designed, it means that it’s designed in such a way to reduce the risk of injury or harm.

The S-track in the Osaki massage chair allows the rollers to follow along the curvature of your spine all the way from your upper neck to your lower back without losing pressure. The alternative to an S-track is a linear track, which often loses pressure along the way, as it can’t follow the unique curvature of your spine.

Air Massage Technology

The Osaki OS 4000 massage chair also comes with airbags. The great thing about the 4000 model is that it comes with fewer airbags that cover more surface area, allowing for a quieter design and less power consumption.

Plus, the massage chair comes with industrial-grade airbag materials, which improves the overall durability of the massage chair without compromising comfort. The chair includes airbags for your arms, shoulders, feet, calves, and lumbar area.

Body Scanner and Leg Scanner

Another benefit of this massage chair is that it comes with both body scanning and leg scanning technology. The massage chair performs a scan on your body to learn about the shape and size of the user.

Once the chair knows your size and shape, the chair will automatically adjust itself so it can provide you with a custom massage uniquely fit for your body.

The chair also comes with a unique leg scanner to account for the many variations in people’s legs. Once the chair scans your legs, it will adjust the foot and calf massager accordingly.

Massage Programs

One of the main reasons people choose the Osaki OS 4000 massage chair is because it comes with a variety of massage programs as well as massage styles. Here are the programs the chair comes with:

  • Relax
  • Smart
  • Healthcare
  • Circulation
  • Neck and Shoulder
  • Demo
  • Full Air
  • Lumbar

Here are the available massage styles:

  • Swedish: This is the most common type of massage that involves long, soft, kneading strokes as well as rhythmic tapping strokes
  • Kneading: This type of massage involves applying deep pressure to muscle tissues
  • Shiatsu: The word shiatsu means “finger pressure” and this type of massage involves putting rhythmic pressure on certain points of the body

The chair also offers tapping, rolling, and a combination of tapping and rolling.

Heat Therapy

Another primary feature of the Osaki OS 4000 is heat therapy. Heat can take your massage to another level. A heated massage helps to:

  • Boost your immunity
  • Reduce anxiety and stress levels
  • Promote healthy sleep
  • Improve your circulation and blood flow

The Osaki massage chair comes with two heating pads for increased rejuvenation and relaxation.

Two Remote Controls

The Osaki massage chair also comes with two remote controls with large, LCD display screens. In addition to the main remote, the chair also comes with a handheld wireless remote so you can easily operate the chair in a reclined position.

Speed Control and Intensity Levels

The Osaki massage chair comes with five intensity levels and five different speeds. This gives the user total control over the rollers and airbag massagers.

Manual Mode

The Osaki massage chair also comes with a manual function that gives the user full control over their massage experience with just the press of a few buttons. The manual mode allows you to choose your massage intensity, style, speed, duration, and areas of the body you’d like to target.

Automatic Timer

Another key feature of the Osaki OS 4000 massage chair is the automatic timer. If you forget to turn the chair off yourself, it’ll automatically shut off to keep you safe. You can set the timer between 5 and 30 minutes so you can kick back and relax without worrying about shutting off the chair yourself.

Other Features

The Osaki OS 4000 massage chair also comes with several other important features, including:

  • 38 airbags
  • Airbag massagers for the arms, shoulders, feet, calves, and lumbar area
  • Spring-loaded ottoman
  • Spinning foot rollers
  • USB port
  • Zero-gravity mode
  • Space-saving recliner track

Specifications of Osaki OS 4000 Massage Chair

Osaki OS-4000 Zero Gravity Executive Fully Body Massage Chair, Black

Before purchasing a massage chair, it’s always important to ensure that the specifications fit your body. Here are the dimensions of the chair when it’s upright:

  • 46"L X 32"W X 47"H

Additionally, here are the dimensions of the chair when it’s reclined:

  • 76"L X 32"W X 47"H

The Osaki OS 4000 massage chair weighs 214 pounds, and it can hold up to 265 pounds.

Video Overview of Osaki OS 4000 Massage Chair

Pros and Cons of Osaki OS 4000 Massage Chair

Before purchasing the Osaki OS 4000 massage chair, you need to consider the pros and cons. Here are some of the biggest benefits of the massage chair:

  • Reduces stress, anxiety, and tension
  • Relaxes and loosens sore muscles
  • Strengthens your immune system
  • Improves blood flow
  • Mobilizes your lymphatic circulation
  • Improves your heart health
  • Vibrating seat that targets the thigh region
  • Multiple massage programs for a custom massage
  • Massage areas for the hip and shoulder
  • Automatic adjustments on calf rests
  • Adjustable widths

However, there are some downsides to the Osaki massage chair that you need to consider before purchasing. Here are some of the cons of this massage chair:

  • Difficult to move the chair around the house because of its weight
  • Strong intensity makes the chair unsuitable for young users

Additionally, the massage chair costs close to $1700, which can be a bit expensive for some people. However, quality massage chairs typically cost between $500 and $10,000, so $1700 is still pretty affordable.

Who is This Osaki OS 4000 Massage Chair Best For?

As we mentioned earlier, because of the intensity of the massage chair, it’s not suitable for young users.

Other than that, this massage chair is for anyone who wants to enjoy a full-body massage from the comfort of their home. Due to the chair’s body scanning technology, variety of massage styles and intensities, and manual mode, it can suit a variety of users.

Whether you’re looking for a massage chair to work deep into your muscles or you just want some light tapping to help you relax, this is the massage chair for you.

Other Osaki Models to Consider  

If the Osaki OS 4000 isn’t quite the massage chair you’re looking for but you trust the brand, there are other models for you to consider. Here are some other models to look into:

Osaki OS 4000T

The Osaki OS 4000T is very similar to the Osaki OS 4000. The main difference is that this model comes with reflexology foot massagers that spin along the bottom of your feet.

These massages stimulate your acupressure points to provide a deep, invigorating massage for your foot and calf muscles.

Osaki OS-4000T Full Body Massage Chair, Zero-Gravity Design Auto Recline and Leg Extension, Full Size Easy-to-Use Remote, Unique Foot Roller, 3 Level Massage Intensity, 3 Level Air Intensity, Black

Osaki OS 4000 CS

Another model to consider is the Osaki OS 4000 CS. This model doesn’t come with any reflexology foot massagers, making it more affordable than the 4000T model.

OSAKI OS-4000CS Zero Gravity Heated Massage Chair, Brown

Osaki OS 4000 LS

If you’re looking for an upgraded version of the Osaki OS 4000, the OS 4000 LS is worth considering. The main difference between the OS 4000 and Os 4000 LS is that the LS comes with extra space.

This chair also comes with an S-Track and L-Track system. This means that you get all of the spine contouring benefits of the S-Track while still getting the lengthening benefits of the L-Track.

Osaki OS-4000LS Massage Chair Ivory

The L-Track rollers stretch a whopping 42 inches and go all the way from your neck to your buttocks.

The Osaki OS 4000 LS also comes with three shoulder width options to provide a better fit for a variety of users. There are also massagers in the arms of the chair, as well as a spring-loaded ottoman.

The spring-loaded ottoman allows you to adjust the length of the chair by simply pushing your legs out. This makes the OS 4000 LS an excellent option for tall individuals who need a bit more leg room.

The OS 4000 LS also comes with reflexology foot massagers that allow you to apply pressure to certain points on your feet. There is also a deep tissue massage mode for when your muscles are feeling extra sore.

This chai also comes with space-saving technology, making it a great option for those who don’t have a lot of space in their home. The chair comes with a recline track that causes the chair to move forward as you move it back so no space is wasted.

To fully recline this chair, all you need is four inches of space behind you. Like the OS 4000, the OS 4000 LS also comes with a handheld remote and a USB port for charging your devices.

This chair can also hold a lot more weight than the OS 4000, as it can hold up to 300 pounds as opposed to 265 pounds.

Osaki OS 3000

While it doesn’t come with all of the bells and whistles that the Osaki OS 4000 has, the Osaki OS 3000 is still a great option, especially for those who are looking to save a little bit of money.

Like the OS 4000, the OS 3000 offers five different massage styles.

These massage styles include:

Osaki OS3000C Model OS-3000 Zero Gravity Massage Chair, Cream, Auto Recline, Leg Adjustment, Timer, Chromotherapy Lighting, Remove Intensity Pad, Computer Body Scan
  • Shiatsu
  • Swedish
  • Dual Action
  • Tapping
  • UNIQ

The UNIQ style targets the thighs and buttocks, and this style is not offered in the 4000 models.

This massage chair also comes with four preset massage programs, which include:

  • Classic 1
  • Classic 2
  • Neck
  • Feet

Classic 1 relies on a combination of tapping and kneading the buttocks and neck areas, while Classic 2 focuses on tapping and rolling the lower back area.

Another major benefit of the OS 3000 chair is that it comes with blue chromotherapy lighting. Chromotherapy is a type of color therapy that promotes calmness, stimulates healing, and stimulates pain relief and relaxation.

The chair also comes with a manual mode that allows you to customize your massage to your own liking.

Competitor Massage Chairs to Consider

Of course, you may find that the Osaki brand is not a good fit for you at all. If this is the case, here are some other massage chairs to consider:

Real Relax

While the Real Relax massage chair doesn’t come with as many features as the Osaki 4000 OS, it’s available at half the price.

This massage chair comes with a remote that allows you to set the rollers and airbags to create a custom massage. It comes with 50 airbags as well as eight neck and back rollers, and it can hold up to 400 pounds.

You can buy this massage chair for $899.99.

Real Relax 2020 Massage Chair, Full Body Zero Gravity Shiatsu Recliner with Bluetooth and Led Light, Black


If you’re looking for a great massage chair that also comes with an S-track and L-Track, the iRest massage chair is a great option.

The iRest SL Track Massage Chair recliner comes with a bluetooth speaker, airbags, and zero-gravity design. It also comes with a Thai-foot massage feature as well as a 3-year warranty.

You can purchase this massage chair for $1599, making it $100 cheaper than the Osaki OS 4000.

iRest SL Track Massage Chair Recliner, Full Body Massage Chair with Thai Stretch, Zero Gravity, Bluetooth Speaker, Airbags, and Thai Foot Massage, Space-Saving (Brown)


Another excellent alternative to consider is the Kahuna massage chair. While this chair is a bit more expensive ($2799.99 compared to $1699.00), it comes with a lot more features.

This chair comes with a 5-year structural warranty, 4-year parts warranty, and 3-year labor warranty. It offers five levels of roller speeds as well as five levels of air pressure.

It also comes with acupressure points and a headrest that can be used as extra back padding.

Kahuna Massage Chair LM-6800S + 2 Years Extended Warranty - Space-Saving Zero Gravity Full-Body Recliner (Black)

Time to Buy Your Osaki OS 4000 Massage Chair

The Osaki OS-4000 Massage Chair is a great chair for anyone who needs intense pain relief or anyone who is just looking to relax. If you’re looking to purchase this massage chair, you can check it out here.

You can also check back in with our blog for more massage chair buying guides.

Osaki OS-4000 Zero Gravity Executive Fully Body Massage Chair, Black

Osaki OS 4000 (Click image for more info)

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