Daiwa Legacy 4 vs Osaki Platinum Solis Duo 4D+
Osaki Platinum Solis Duo 4D+ leads on our weighted scoring by 0.9 points over Daiwa Legacy 4. Daiwa Legacy 4 costs $2,499 less — about 21% — so the question is whether what Osaki Platinum Solis Duo 4D+ adds is worth that to you. They separate most on price (Daiwa Legacy 4), overall score (Osaki Platinum Solis Duo 4D+) and track — those are the rows worth reading closely. In short: Osaki Platinum Solis Duo 4D+ for buyers who want Osaki's most capable mechanism and stretch recline, regardless of price; Daiwa Legacy 4 for buyers who want dedicated knee and calf heat treatment in a premium chair.
| 2 products |  Daiwa Daiwa Legacy 4 | |
|---|---|---|
| Price | $9,500 | $11,999 |
| Overall score | 7.8 | 8.7 |
| Track | 49 in L-shape track | Flexible track system (SL-based, reclines to 190°) |
| Rollers | 3D (3 dedicated 3D modes: Shiatsu, Breathe, Revive) | Dual 4D mechanisms (2 separate mech controllers) |
| Zero gravity | Yes | Yes (zero gravity reclining) |
| Heat | Lumbar heat plus thermal calf-and-knee leg massage | Lumbar graphene heating (~75–83°F) |
| Auto programs | 27 auto programs (9 routines x 3 time settings) + 7 manual modes | 18 auto programs + 5 manual styles |
| Max user height (in) | User height range 4'8" - 6'6" | — |
| Warranty (yr) | 2 yr parts/framework, 1 yr labor | 5 years (3 years full service + 2 years parts) |
| Reclined length | 63 x 32 x 48 in upright, 3.25 in from wall | 30" W × 63" L × 48.4" H upright (81" L reclined); 10" wall clearance; 30" min doorway |
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Daiwa
Daiwa Legacy 4
Best for Buyers who want dedicated knee and calf heat treatment in a premium chair
$9,500
Osaki
Osaki Platinum Solis Duo 4D+
Best for Buyers who want Osaki's most capable mechanism and stretch recline, regardless of price
$11,999