Osaki | Platinum 4D Ultima
Osaki Platinum 4D Ultima Massage Chair
Count the places the Platinum 4D Ultima makes contact. Forty-eight air cells run through the chair, the widest air coverage of the three Osaki 4D chairs at this level. Heat sits at the lumbar and again at the calves. Three rollers work under the foot. Mini nodes in the arm sleeves handle hand reflexology. The 4D mechanism itself covers the back on an SL-track. Most chairs at this level concentrate their hardware in one or two zones and let air compression handle the rest. The Ultima spreads it.
None of that coverage is fixed at one setting. The air massage splits into three sections with five intensity levels, and the heating runs at three levels at both the lumbar and the calves. Twelve auto programs sit above six massage styles, reached from a touchscreen controller, a shortcut panel or intelligent voice control. The automatic extendable footrest drives out nearly 10 inches so the foot rollers meet the sole at a range of heights. Osaki’s specification sheet gives maximum user weight as 270 lb, and the Platinum 4D Ultima ships in Black, Brown and Beige.
Air Cells48Full body compressionHeat ZonesLumbar + calvesThree heat levelsFoot Rollers3Triple action foot massagerMax User Weight270 lbOsaki specification sheet12 auto programs, 6 stylesFootrest extends nearly 10 in.Air massage in 3 sectionsTouchscreen and shortcut panel
Inside the chair
Four Systems, Four Parts of the Body
Air, rollers, heat and nodes. Each one owns a different region of the body, and on the Platinum 4D Ultima all four run at once.
?48 Air Cells in Three SectionsForty-eight cells inflate and release across the shoulders, arms, hips, calves and feet for full body compression. They are grouped into three sections with five intensity levels, so the shoulders can run light while the calves run hard. Air is the part of a massage chair that reaches limbs, and forty-eight cells is the widest count in this group of three.3 sections, 5 levels⚙The 4D Massage MechanismA 3D roller can move in and out from the backrest. A 4D roller adds control over the speed and rhythm of that movement while a program is running, so pressure builds and eases the way a hand changes pace. Osaki tune the Ultima mechanism toward the neck and shoulder region in particular, and run it along an SL-track down the back.Speed, depth and rhythm?Heat at the Lumbar and the CalvesTwo heated regions, each adjustable across three levels. The lumbar element warms the lower back while the rollers pass over it. The calf element warms the leg section while the air cells compress it. Warm tissue takes pressure differently from cold tissue, which is why the heat and the massage run together on the same program.Two zones, three levels?Hand Reflexology NodesMini nodes are built into the arm sleeves for acupuncture hand reflexology, working the hands and forearms while the air cells around them inflate. Osaki position it as recovery for arm fatigue. It is the one contact point on this chair that most massage chairs leave out entirely.Nodes in both arms
The numbers
Eight Figures From the Ultima Spec Sheet
Every figure below comes from Osaki’s published feature list and specification sheet for the Platinum 4D Ultima.
?48 air cell full body compressionWidest coverage of the three?Heat at the lumbar and the calvesThree heat levels?3 rollers under the footTriple action foot massager?Hand reflexology nodes in the armsArm and hand contact?Footrest extends nearly 10 in.Automatic extendable footrest?12 auto programs, 6 massage stylesTouchscreen controller?4D mechanism on a full SL-trackComputerized body scanning?270 lb maximum user weightOsaki specification sheet
Closer look
Where the Coverage Actually Lands
Feet and calves
Three Rollers and Ten Inches of Travel
The triple action foot massager puts three rollers under the sole, working a kneading and shiatsu pattern that Osaki describe as hand simulation. Above them the calves get air cells and their own heating element. None of that works if your legs sit at the wrong height, which is what the automatic extendable footrest solves: it drives out nearly 10 inches under its own power, so the sole meets the rollers whether you are 5 ft 2 in. or 6 ft 2 in.
- Triple action foot massager, 3 rollers under the foot
- Kneading and shiatsu patterns
- Automatic extendable footrest, nearly 10 in. of travel
- Calf heating at three levels
- Calf air cells within the 48-cell system
3 foot rollers10 in. extensionCalf heatReclined
Forty-Eight Cells, Reclined
Zero gravity reclining is where the air coverage does its best work. With the body tipped back and the knees raised, weight comes off the lower spine and the air cells have something soft to compress. The forty-eight cells split into three sections at five intensity levels, so the arms can run at a setting the calves would never tolerate. Lumbar heat runs underneath the whole thing. Space saving technology gets the Platinum 4D Ultima into that position without the chair needing to sit far out into the room.
- 48 air cells across shoulders, arms, hips, calves and feet
- Three adjustable sections, five intensity levels
- Zero gravity reclining
- Lumbar heat at three levels
- Space saving technology
48 air cellsZero gravitySpace savingControls
Touchscreen, Shortcut Panel, Voice
A chair with this many independent systems needs a way to reach all of them. The touchscreen controller carries the full menu: 12 auto programs, 6 massage styles, three air sections, five intensity levels and two heat zones. The shortcut panel handles the two or three settings you change mid-session without going back to the screen. Intelligent voice control covers the rest. Surround sound Bluetooth speakers sit in the headrest for audio through the session.
- Touchscreen controller
- Shortcut panel for mid-session changes
- Intelligent voice control
- 12 auto programs with 6 massage styles
- Surround sound Bluetooth speakers
TouchscreenShortcut panelVoice control
Compare
Three Osaki 4D Chairs in the Middle of the Line
All three run a 4D mechanism at a similar level. They separate on where the hardware goes: rotation at the ankles, air coverage across the body, or heat in the rollers themselves.
Osaki 4D AchillesThe only chair here whose footrest rotates a full 360 degrees, clockwise, counterclockwise and alternating, working the ankle joint itself.4D rollers40 air cells19 auto programs360-degree footrestShop the Osaki 4D AchillesYou’re HereOsaki Platinum 4D UltimaThe widest air coverage of the three at forty-eight cells, with heat at both the lumbar and the calves and a 270 lb capacity.4D rollers48 air cells270 lb capacityLumbar + calf heatCurrently viewingOsaki OS-Pro Paragon 4DRuns an L-track where the other two use an SL-track, and is the only one of the three that heats the back roller and the foot rollers together.4D rollersL-trackHeated back rollerHeated foot rollersShop the Osaki OS-Pro Paragon 4D
Questions
Frequently Asked Questions
48 air cells for full body compression, the widest count of the three Osaki 4D chairs in this group. The air massage adjusts in three sections across five intensity levels, so different parts of the body can run at different pressures in the same program.Two places: the lumbar and the calves, each adjustable across three levels. One note on Osaki’s own copy: the section covering this is headed “4 Area Heating” but names only those two regions, and the features metafield lists “Lumbar & Calf Heating”. We publish the two areas Osaki actually name. If the four-area figure matters to your decision, ask us to confirm it with Osaki before you order.Three rollers sitting under the foot, running a kneading and shiatsu pattern that Osaki describe as hand simulation rolling. They work alongside the calf air cells and calf heat in the same leg section.Nearly 10 inches, and it drives itself out automatically. Osaki’s stated purpose is finding the right position for users of any height, which matters on this chair because the foot rollers only reach the sole when the leg length is set correctly.Mini nodes built into the arm sleeves, positioned for acupuncture hand reflexology. Osaki position them as recovery for arm fatigue and circulation. They work while the arm air cells inflate around them.A 3D roller adjusts how far it protrudes from the backrest. A 4D mechanism adds control of the speed and rhythm of that motion while the program runs, so the pace changes under you. Osaki tune the Ultima mechanism toward the neck and shoulder region and run it on a full SL-track, with computerized body scanning setting the roller path first.12 auto programs and 6 massage styles. Auto programs run a fixed sequence across the zones. The massage styles let you pick the technique yourself and apply it where you want it.270 lb, from Osaki’s specification sheet for the Platinum 4D Ultima. Chair fit is also governed by the seat and shoulder widths below, so check those against your own measurements.Osaki publish two sets of figures for this chair and we are not going to average them. The specification metafield on this listing gives seat 19 in. and shoulder 21 in. The older specification table in the product copy gives seat 18 in. and shoulder 21.5 in. The difference is about an inch either way. If your fit is close to those numbers, ask us to confirm with Osaki before you order.Upright it measures 29.5 in. (W) × 63.0 in. (L) × 48.5 in. (H). Reclined it measures 29.5 in. (W) × 71.0 in. (L) × 35.0 in. (H). Minimum doorway size is 29.5 in. on the specification metafield; the older product copy says 29 in., so plan on the larger figure. Full dimensions are in the Dimensions tab below.Yes. A shortcut panel sits within reach for the settings you change mid-session, and intelligent voice control takes spoken commands. The touchscreen holds the full menu when you want it.Three colours: Black, Brown and Beige, all the same chair. Osaki’s own specification table lists the product name as Osaki OP-4D Ultima, which is the same model sold here as the Osaki Platinum 4D Ultima. Power supply is AC 110 to 120V at 60 Hz.
