4D Back and Glutes Massage Mechanism

The rollers don't just travel a fixed path — you shape the width, length, and intensity to fit your own body and your own session.

The 4D mechanism moves up and down, side to side, and in and out, then adds a fourth dimension of variable speed on top of all three. The result is a roller stroke that speeds up and slows down mid-movement the way a real hand does, rather than a single mechanical rhythm repeating from top to bottom.

Triple Foot Roller Total Sole Reflexology

Three rollers per foot means your entire sole gets attention, not just the arch or the heel.

Three shiatsu rollers per foot trace the pressure points across the sole that are linked to other parts of the body, giving you one of the most thorough foot massages available in a chair at this level.

49-Inch L-Track Design

Your massage follows the actual curve of your spine, not a straight line, so pressure stays accurate from your neck to your glutes.

The L-Track extends from the neck, down through the lower back, and further down to the glutes, so you receive complete coverage in one continuous, spa-quality session rather than the shorter path a standard track offers.

Chromotherapy Programs and LED Mood Lighting

The right color and the right massage program work together to help you wake up energized or wind down completely.

Chromotherapy uses the color spectrum to help balance your physical, emotional, and mental state. Programmed light sequences are designed to pair with your massage, so the visual experience matches what your body is feeling.

Integrated Air Ionizer

You breathe cleaner air throughout the entire session, not just a more relaxed body afterward.

A small vent near the headrest continuously emits negatively charged ions, helping to reduce your intake of airborne pollutants while you recline.

Premium Leather-Backed Intuitive Remote Control

Every program and adjustment is a tap away, on a display built to be understood at a glance.

A color, menu-driven remote gives you access to 12 automatic programs or fully customizable manual settings, then stores away neatly in the side pouch when you're done.

TrueFit Footrest Extension

Taller users get proper leg support automatically, without stopping the session to adjust anything by hand.

The footrest mechanically extends and retracts to create a custom length matched to your legs, so contact stays accurate whether you're average height or considerably taller.

Complete Calf Kneading and Oscillation

Your calves are kneaded from behind and worked from the sides at the same time, not one after the other.

Kneading rollers work the back of each calf while orbital oscillation works the sides simultaneously, imitating human hands to relieve tension, restore circulation, and improve flexibility in muscles that spend all day standing or sitting.

Wireless Charging Pad and Joystick Control

Your phone charges while you recline, and the chair reclines without you ever reaching for the remote.

An onboard wireless charging pad built into the armrest keeps your phone powered throughout the session, while the easy-access joystick lets you recline and select auto programs right from the armrest.

Intelligent Voice Command and Control

Change programs and adjust your session out loud, without sitting up or searching for the remote.

This hands-free feature lets you activate massage programs simply by asking, working alongside the remote and joystick so you can use whichever is most natural in the moment.

Massage Coverage by Region

Neck	Shoulders	Back	Arms	Glutes	Calves	Feet

5 Massage Techniques, 12 Auto Programs, and Full Connectivity

Every technology feature works toward the same goal — a session that adapts to you instead of the other way around.

Twelve auto programs choreograph Kneading, Tapping, Knocking, Sync, and Shiatsu massage techniques across the back, and each technique can also be run manually so you can build your own session. TrueFit Body Scanning maps your size and shape before the massage begins so pressure lands exactly where it should. Apple and Android app control lets you run the chair from your phone, a USB port keeps devices charged within reach, and premium Bluetooth speakers stream your own music or the chair's built-in nature sounds through the SootheMe Sound Therapy library. Airbags throughout the chair provide coordinated compression, Weightless Zero Gravity Recline lifts your knees above your heart to reduce spinal pressure, and Zero Wall Fit Space-Saving Technology lets the chair slide forward as it reclines, so it needs only 2 inches of clearance from the wall behind it. An easy access control panel keeps the essentials within reach without ever needing the remote.

Questions about the Yutaka M898? Our experts have helped thousands of buyers since 2005.

Call 888-612-8862

The Yutaka M898 sits at an appealing spot in Kyota's lineup: full 4D roller technology, a genuine 49-inch L-Track, and a feature list that covers nearly every wellness extra a buyer could ask for, at a certified pre-owned price. Kyota's certification process means every chair we sell as certified pre-owned has been inspected and confirmed to be in full working order before it ships, and it carries the same warranty coverage a new chair receives. The trade-off is honest and worth stating plainly: you may see minor cosmetic wear from a prior owner or from shipping, and we're glad to send photos of your specific unit before you commit.

Mechanically, the 4D back and glutes mechanism is the real story here. Because the rollers move through four dimensions instead of the more common three, the massage speeds up and slows down mid-stroke the way a person's hands would, rather than repeating a single mechanical rhythm. Paired with the 49-inch L-Track, that motion reaches from your neck through your lower back and into your glutes in one continuous pass. The triple foot roller system and Complete Calf kneading and oscillation extend that same philosophy down to your lower legs and feet, an area many chairs treat as an afterthought.

What rounds the chair out is the sheer number of small conveniences working together: TrueFit body scanning so the massage starts already calibrated to you, voice control and a joystick so you rarely need the remote, chromotherapy and Bluetooth audio for the sensory side of relaxation, and a wireless charging pad so your phone is ready when you are. None of these are individually rare in this price range, but Kyota packages an unusually complete set of them into a single chair.

This is the right chair for buyers who want full 4D, full L-Track coverage, and a long list of wellness technology at meaningfully less than new-chair pricing, and who are comfortable with the minor, disclosed trade-offs of buying certified pre-owned. It is not the right chair for buyers who want guaranteed pristine, unused cosmetic condition, or who specifically need dedicated hand or palm rollers. Call us at 888-612-8862 and we'll give you a direct answer about whether this unit fits what you're looking for.

What We Love

• True 4D roller mechanism — Variable speed layered on top of up/down, side/side, and in/out movement. Feels noticeably less mechanical than 3D-only chairs.
• Full 49-inch L-Track — Continuous coverage from neck to glutes in a single pass.
• 5 intensity levels, 3 width settings, 6 speed settings — A genuinely wide range of adjustability for a chair at this price point.
• Triple foot roller reflexology — Three rollers per foot for full-sole coverage, not just the arch.
• Complete Calf kneading and oscillation — Rollers and side oscillation work simultaneously rather than in sequence.
• TrueFit Body Scanning — Maps your back, shoulders, and neck before the session starts, so pressure lands where it should from the first stroke.
• Genuine 2-inch wall clearance — One of the more space-efficient full-recline chairs available.
• Voice control, joystick, and app control — Three separate ways to run the chair without reaching for anything.
• Certified pre-owned savings — The same core technology and the same warranty coverage as a new Yutaka M898, at a meaningfully lower price.

Worth Knowing

• This is a certified pre-owned unit — Minor cosmetic blemishes from shipping or prior use are possible, and available color and finish depend on current inventory. Call us for photos of the specific chair you would receive before ordering.
• The 4D roller massage runs firm — If you're looking for an especially soft, barely-there massage, this chair's lowest setting may still feel more substantial than you expect. Buyers who want real pressure will feel right at home; buyers who want a very gentle touch may prefer a different model.
• No dedicated hand or palm rollers — Palms and forearms are covered by airbag compression only, not rollers. If hand and palm massage is a priority for you, a chair with dedicated hand rollers may be a better fit.
• User height range is roughly 4' to 6'6", weight limit 300 lbs — Worth confirming your fit before ordering if you are near either limit.

Our Verdict

The certified pre-owned Yutaka M898 delivers genuine 4D, full L-Track coverage, and an unusually complete technology package at a price well below what a new chair with the same features would cost. Best for buyers who want the full Kyota 4D experience without paying new-chair pricing, and who are comfortable with the disclosed possibility of minor cosmetic wear. Look elsewhere if guaranteed pristine cosmetic condition is non-negotiable, or if dedicated hand and palm rollers are a must-have for you.

Call 888-612-8862

Tell us what you need and we'll narrow it down in about 2 minutes.

The Value-Conscious Feature Seeker

You want genuine 4D roller technology, a full-length L-Track, and features like body scanning and voice control — without paying full new-chair price. The certified pre-owned Yutaka M898 gives you the same core chair and the same warranty at meaningful savings.

The On-Your-Feet-All-Day User

Triple foot roller reflexology plus Complete Calf kneading and oscillation give your lower legs and feet a genuinely thorough session, ideal if you spend your day standing, walking, or on your feet at work.

The Whole-Household Buyer

With 5 intensity levels, 3 width settings, 6 speed settings, and TrueFit body scanning that recalibrates for every new user, the Yutaka M898 adjusts to different body types and preferences across the whole family rather than favoring one user.

When to Consider a Different Chair

If dedicated hand and palm rollers are a priority for you, a chair built around that feature — rather than airbag compression alone — will likely serve you better.

If you'd prefer a shorter J-Track with tri-zone heat across the back, arms, and feet, the Kyota Kokoro M888 is worth comparing. If you want a similarly full-featured Kyota chair but with fewer auto programs and MyMassage memory settings, the Kyota Kansha M878 is another sibling worth a look. Call 888-612-8862 and we'll walk you through the differences in about two minutes.

Researching massage chairs takes time.

Our experts have helped thousands of buyers since 2005 — tell us what matters to you, and we’ll narrow it down in about 2 minutes. Call 888-612-8862 or chat with us now.