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Osaki OP-4D Master vs Infinity Evo Max 4D
Side-by-side spec breakdown — track type, roller tech, heat, zero gravity, airbags, warranty, and expert scores.
| Spec | Value | Value |
|---|---|---|
| Track Type | SL-Track | L-Track |
| Roller Tech | 4D | 4D |
| Zero Gravity | 1-stage | 2-stage |
| Heat Therapy | lumbar-foot | lumbar |
| Airbags | ✓ 46 | 32 |
| Body Scan | Yes | No |
| Height Range | N/A | Over 6'4" |
| Weight Capacity | 260 lbs | ✓ 300 lbs |
| Techniques | kneading, tapping, shiatsu, rolling, stretching | shiatsu, kneading, tapping, rolling |
| Smart Features | bluetooth, voice-control, alexa, mobile-app, usb-charging, led-lighting, touchscreen | voice-control |
| Warranty | 5 Years | 5 Years |
✓ indicates best value in that row
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202 chairsWhich should you buy?
Here's a quick breakdown of who each chair is best suited for, based on track type, price tier, and our editorial scores.
Luxury · 4.7/5
Osaki OP-4D Master
SL-Track (neck to glutes)
Best for
- ✓4D roller on laser-crafted steel SL-Track
- ✓16 specialist auto programs including Pilates, Golfer, and Mobile Mode
- ✓Alexa voice control + companion iOS/Android app
Watch out for
- ·Very large at 68" long upright, 254.6 lb
- ·Only 1-stage zero gravity
Luxury · 4.7/5
Infinity Evo Max 4D
L-Track (neck to hamstrings)
Best for
- ✓Voice recognition control
- ✓49-inch L-track
- ✓Tall user support to 6'9"
Watch out for
- ·Advanced features add complexity
- ·Higher maintenance