Editorial head-to-head
Kyota Yutaka M898 vs Infinity Genesis Max
These two sit at the same street price with near-identical roller specifications — 4D on a 49-inch L track, three zero-gravity stages, foot and calf rollers, 300 lb limits and lumbar-only heat. The differences are physical and contractual.
By ChairMentor Editorial Team · Updated 2026-09-01 · Editorial verdict based on published specifications, not on hands-on testing.
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| Specification | ||
|---|---|---|
| Score: massage hardware | 9.0 | 9.6 |
| Score: body fit | 10.0 | 10.0 |
| Score: feature set | 9.5 | 9.5 |
| Score: warranty | 8.0 | 9.3 |
| Score: controls | 10.0 | 8.5 |
| Score: value | 4.8 | 5.2 |
| Price (typical street) | $12,999 | $12,999 |
| Best for | 4D coverage in a room where the chair has to sit close to the wall | Long-track 4D coverage for taller users |
| Roller technology | 4D | 4D |
| Track | L track | L track |
| Track length | 49" | 49" |
| Air compression (airbags) | — | 40 |
| Foot massage | Yes | Yes |
| Calf massage | Yes | Yes |
| Heat | Lumbar | Lumbar |
| Zero gravity | 3 | 3 |
| Body scan | Yes | Yes |
| Stretch | Yes | Yes |
| Height range | 5'4" – 6'7" | 5'2" – 6'9" |
| Weight limit | 300 lbs | 300 lbs |
| Dimensions (upright) | 49" L x 35" W x 67" H | 48" L x 35" W x 66" H |
| Wall clearance | 2" | 2" |
| Warranty | 4-year limited warranty (Kyota Promise) | 5-year limited Infinity Care (5 years structural, 3 years parts, 1 year labor) |
| ChairMentor verdict | A 4D L-track flagship built for rooms where the chair has to sit against a wall. Research Review based on Kyota's published product page and spec sheets. | Infinity's 4D flagship, now listed as Gen Max. Long L-track, the widest published height range we have verified, and a 5-year warranty. Research Review built from Infinity's official specification sheet and manual; we have not sat in this chair. |
The short version
Kyota Yutaka M898: 4d coverage in a room where the chair has to sit close to the wall. 4D rollers on a L track, with a stated fit range of 5'4" – 6'7". Read the full review.
Infinity Genesis Max: long-track 4d coverage for taller users. 4D rollers on a L track, with a stated fit range of 5'2" – 6'9". Read the full review.
What actually separates them
- Reclined footprint: 73 inches for the Kyota against 80 for the Infinity. Seven inches of floor length is the most tangible difference between them.
- Fit ceiling: Infinity publishes up to 6'9", Kyota up to 6'7". Kyota's floor is higher too, at 5'4" against 5'2".
- Warranty: Four years from Kyota against Infinity's five-year programme with three years of parts. At this price the longer term is worth real money.
- Weight: 323 lb for the Genesis Max, 304 lb for the Yutaka. Both need professional placement; neither is moving without help.
- Voice control: Kyota publishes it, Infinity does not on this model. A convenience feature, not a decider.
Who should buy which
Kyota Yutaka M898: Choose the Kyota Yutaka M898 if floor length is your constraint — it does flagship 4D in the smallest reclined footprint we have verified for its fit range.
Infinity Genesis Max: Choose the Infinity Genesis Max if you are close to 6'7", or if the extra year of warranty and the deeper parts coverage matter more than seven inches of floor.
Our verdict
Mechanically these are near-twins. Measure the reclined footprint against your room and the fit ceiling against the tallest person in the house — those two numbers settle it more reliably than anything on the feature list.