Before we can even begin to talk about the features of the different Osaki Japan Premium massage chairs, we’ve got to highlight some of the differences between the three variants, as shown in the table below.
Osaki Japan Premium Massage Chair Comparison
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- Lumbar and Foot Heat
- 16 Preset Massage Programs
- 41 Massage Techniques
- 5-30 Massage Timer
- Zero-Gravity
- Memory Function
- Touchscreen Remote
- No Massage Balls
- 34 Airbags
- Kiwami Mecha 4D massage balls
- Lumbar Heat
- 44 Airbags
- 28 Massage Techniques
- 5-30 Massage Timer
- Zero-Gravity
- 10 Preset Massage Programs
- No Memory Function
- Not Touchscreen
- Shoulder and Foot Heat
- 12 Preset Massage Programs
- 36 Airbags
- 16 Massage Techniques
- 5-15 Massage Timer
- No Massage Balls
- No Memory Function
- Not Touchscreen
- No Zero-Gravity Function
Are you the person who won’t settle for anything but the best?
If so, the Osaki Japan premium massage chair should be on your short list of massage chairs.
In the Osaki Japan Premium review below, we’ll break down every aspect of all three variants of this spectacular addition to the Osaki line to help you find the perfect massage chair.
Osaki Japan Premium 4D
The only chair in the lineup that features the Kiwami Mecha 4D massage ball system.
Massage Ball System
No Osaki Japan Premium Massage Chair review would be complete without discussing the unique massage ball system of this chair, which is, in essence, the defining feature of the Osaki JP Premium 4D model.
In the past, the most basic track configuration in a massage chair was a straight roller track. This configuration allowed rollers to move up and down and left and right. However, the design did not follow the natural shape of the human spine, thus delivering a very uneven massage experience.
The recent development of the S-Track system enabled massage rollers to move in three dimensions. Designed to follow the natural curvature of the human spine, the S-track allowed for “in” and “out” movements that were impossible with a simple straight track.
So, where does the 4D come into play?
The Osaki Japan Premium 4D features the Kiwami Mecha 4D massage ball system. This system allows the speed of the massage balls to be adjusted beside the intensity, giving the chair a fourth operating dimension.
Despite lacking other advanced features found in the Osaki Japan Premium 4S model, this innovative massage ball system delivers an unparalleled quality massage. It comes closest to feeling like getting massaged by actual human hands, which is the 4D’s core distinction.
This, combined with the chair’s impressive 40 rollers, delivers a massage experience beyond compare.
Variable Massage Intensity
Here, it’s important to note that massage intensity settings available on the Osaki Japan Premium 4D differ between its two modes of operation. When using pre-programmed settings, the chair offers 7 different massage intensity settings. On the other hand, 12 different intensity settings are available when in manual mode.
Basic and Advanced Automatic Programs
The Osaki Japan Premium 4D is designed to cater to almost every taste and preference. The company mixes and matches its techniques with zone massages, but the following are some of the massages on offer:
In all, it offers a total of 28 different kneading techniques.
The massage presets are more clearly defined and broken into two groups: Basic and Advanced. The advanced programs are identical to the basic ones but deploy the Kiwami Mecha balls in the massage rollers.
Basic Programs:
Advanced Programs:
The variability and sheer number of massage customization options available in this chair mean one could spend weeks and perhaps months trying new and different combinations, never experiencing exactly the same massage twice.
Zero Gravity
While both the 4D and 4S variants can rightfully be considered Osaki Japan Premium zero gravity massage chairs, the zero-gravity feature sees its best and most effective use in the 4D model thanks to the presence of the Kiwami Mecha massage balls and greater number of rollers it has than what the 4S model offers.
The zero-gravity function is a chair set that positions the user’s knees above the heart, allowing one’s own natural body weight to press onto the rollers even as they press up and against the back, facilitating firmer contact and a better overall massage.
While this feature is certainly a good addition to the 4S model, the 4D makes the most of it better and is a real standout feature for this chair.
Also, note that the Osaki Japan Premium 4.0 base model does not offer Zero-G seating.
Air Massage
Featuring an impressive 46 airbags strategically placed throughout the chair, the 4D model offers an exquisite air massage option in addition to the already dazing options the rollers and massage balls offer.
One can enjoy a full-body, completely customizable massage experience using air massage mode.
Foot Massage
Like most other deluxe massage chairs, the 4D also has rollers for massaging the feet. These rollers can be activated in tandem with or independently of the air massage. Note that when used in tandem with the air massage mode, you can also get a soothing foot stretch massage.
Body Scan Technology
In looking at all the features mentioned so far in this Osaki Japan Premium review, it’s easy to see that the 4D’s main purpose is to give a massage that’s simply unequaled by any other massage chair on the market today.
Utilizing body scan technology is the icing on the cake here. Allowing the rollers to adjust to the specific dimensions of the body ensures that the rollers hit the pressure points just right. Combined with the massive number of massage options and intensity settings, it only makes the 4D, an already exquisite chair, much better.
Removable Pad
As if all of the above weren’t enough, if you found that the massage the 4D gives you isn’t intense enough, even on the highest setting, the back pad is removable, and taking it out will increase the intensity further.
Lumbar Heat
Massage plus heat offers more therapeutic value than just getting a massage alone. So, we consider any time heating elements are included a huge plus.
In this case, the feature implementation is average because heat is limited to the lumbar region and has no precise temperature control. Even so, its presence in any form has to be counted as a plus.
Adjustable Timer
Massage times on both the 4D and 4S default to twenty minutes. However, they can be modified in five-minute increments to a minimum duration of five and a maximum of thirty minutes, so you can enjoy quick and longer massages according to your preference.
Osaki Japan Premium 4S
Offers expanded heat in the lumbar and feet areas and a user-friendly touchscreen remote.
With all the fabulous features of the Osaki Japan Premium 4D, you may wonder what the 4S model could add to this magnificent massage chair. The answer to that question may surprise you. To better understand, let’s look at some of their differences, as outlined in the comparison chart earlier.
Undeniably, the 4D and the 4S share many similarities. However, the differences are also noticeable.
First, the Osaki Japan Premium 4S gives up the Kiwami Mecha balls but retains the spirit of 4D massage movement so that the speed of the rollers can still be adjusted. Second, the 4S has eight rollers, less than the 40 rollers found in the 4D model. It also has only 34 airbags compared to the 4D model’s impressive 46 airbags. Taken together, then, we have to give the nod to the 4D model in terms of delivering the best basic massage experience.
This is not to say that the 4S lacks anything. It does quite a lot, too!
What the 4S lacks in the number of rollers and airbags, it makes up for in two key areas.
Expanded Heat Function
Unlike the 4D model, which offers heat only in the lumbar region, the Osaki Japan Premium 4S expands this feature to include the soles of the feet, which really enhances the experience.
In fact, if you spend several hours a day on your feet, this could easily be your make-or-break decision, making up for the fewer airbags and massage rollers.
User Friendliness
It would be a stretch to say that the 4D model appeals more to gearheads while the 4S model appeals to less technical people, but the essence of that statement is true. The 4D allows the user incredibly fine-grained control over their massage experience, while the 4S model is designed to be one-touch simplicity.
This is why the Osaki Japan Premium 4S offers more preset programs (16 against 10) and massage techniques (41 against 28) than the 4D model.
The thinking here is simple. With a 4D, you can directly control the massage and program it exactly how you want it to operate. With a 4S, however, you can simply choose from the immense number of presets installed, lie back, and enjoy. The two models appeal to two very different segments of the market.
Touch Screen
This simplicity and general user-friendliness manifest in other ways, too. The 4S has a handy, full-colored, intuitive touch screen that makes operating the chair a snap.
Note that this user-friendliness is taken even further by allowing different users of the chair to save their preferred presets and access them again at the touch of a button. This is a very handy, very convenient feature.
Aside from the differences noted above, the two models are identical in every respect, including zero-gravity function, foot rollers, computer body scan, and so on.
Osaki Japan Premium 4.0
Provides all the basic features of the Osaki 4 product line.
We included the base model, the Osaki Japan Premium 4.0, at the end of this review because it is a compromise between the 4D and 4S variants in many ways.
In particular, the base model 4.0 offers:
Given the above, you might wonder why one would still consider the base model over the two other variants. The base model has a secret weapon that neither of the other two offers.
Shoulder Heat Function
The base model provides heat on both the footwells and the shoulders. We have seen very few chairs with shoulder heat, making this a rare find. So, suppose you suffer from chronic pain in the upper back and shoulders. In that case, heat therapy offered in these areas more than makes up for some of the feature losses mentioned above, making the Osaki Japan Premium 4.0 a no-brainer of choice.
Osaki Japan Premium Review Final Thoughts
So which one is right for you?
The answer, ultimately, is, “it depends on you.”
If you spend several hours a day on your feet, the heat offered by either the base model or the 4S will cause you to lean in that direction. The Osaki Japan Premium 4S is the clear winner if you prefer simplicity and an abundance of pre-programmed options.
The base model, Osaki Japan Premium 4.0, on the other hand, is the obvious choice for anyone with chronic upper back and shoulder pain.
Finally, if you’re looking for the ultimate massage experience and all the fine-grained control that goes into it, the Osaki Japan Premium 4D is the chair to choose.
No matter which version of the Osaki Japan Premium massage chair you personally choose in the end, you absolutely won’t be disappointed. The three variants cater to very different tastes, and ultimately, your selection will be driven by your preferences. All three designs are absolute masterpieces.
REFERENCES & RESOURCES:
- Osaki Massage Chair, Official Brand Site.
- Getting the Right Massage for Low Back Pain, Spine-health.
- Acupressure Points and Massage Treatment, WebMD.
- The Pressure Question in Massage Therapy, PainScience.
- Hands On Research: The Science of Touch, The Greater Good Science Center, University of California, Berkeley.
