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- QR 798 vs RoboStar iQ900 Ultra
Roborock QR 798 vs TESLA RoboStar iQ900 Ultra
What QR 798 does better (3) and where RoboStar iQ900 Ultra wins (4) — every spec side by side.
vs
6.8Cleaning power6.2
4.3Navigation5.8
6.5Mopping8.6
8.8Base station3.9
6.2Battery6.0
Dimensions
Size comparison
QR 798RoboStar iQ900 Ultra
| QR 798 | RoboStar iQ900 Ultra | Difference | |
|---|---|---|---|
| Height | 96 mm | 96 mm | = |
| Width / diameter | 353 mm | 320 mm | +33 mm |
| Length | 353 mm | 320 mm | +33 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is QR 798 better than RoboStar iQ900 Ultra?
- Base stationAll-in-one dock (empty + wash) vs Auto-empty dock
- Runtime180 min vs 168 min+7%
- Dustbin (robot)330 ml vs 280 ml+18%
Why is RoboStar iQ900 Ultra better than QR 798?
- Mop lift height10 mm vs 15 mm+50%
- Charging time360 min vs 270 min+33%
- Clean water tank (dock)3.5 l vs 4.6 l+31%
- Dust bag (dock)2.7 l vs 3 l+11%
Specifications
Side by side
| Suction & cleaning | ||
| Suction power | 10,000 Pa | 10,000 Pa |
| Dustbin (robot) | 330 ml | 280 ml |
| Main brush | Single main brush | Single main brush |
| Anti-tangle brush | Yes | — |
| Side brushes | 1 | 1 |
| Carpet detection | Yes | Yes |
| HEPA filter | — | Yes |
| Noise level | 64 dB | 64 dB |
| Navigation & obstacles | ||
| Navigation | Laser (LiDAR) | Laser (LiDAR) |
| Navigation sensors | LiDAR laser (LDS), Cliff sensors | LiDAR laser (LDS), Cliff sensors |
| Obstacle avoidance | Basic sensors (infrared / bumper) | Basic sensors (infrared / bumper) |
| Threshold climbing | — | 20 mm |
| No-go zones / virtual walls | Yes | Yes |
| Room mapping & room selection | Yes | Yes |
| Mopping | ||
| Mop type | Rotating mop pads | Rotating mop pads |
| Mop lifting on carpets | Yes | Yes |
| Mop lift height | 10 mm | 15 mm |
| Extending mop (edges) | — | Yes |
| Water tank (robot) | 80 ml | — |
| Base station | ||
| Base station | All-in-one dock (empty + wash) | Auto-empty dock |
| Auto-empty dust station | Yes | Yes |
| Dust bag (dock) | 2.7 l | 3 l |
| Mop washing in the dock | Yes | — |
| Automatic water refill | Yes | Yes |
| Clean water tank (dock) | 3.5 l | 4.6 l |
| Dirty water tank (dock) | — | 4.6 l |
| Battery & runtime | ||
| Battery capacity | 5,200 mAh | 5,200 mAh |
| Runtime | 180 min | 168 min |
| Charging time | 360 min | 270 min |
| Size & weight | ||
| Width / diameter | 353 mm | 320 mm |
| Length | 353 mm | 320 mm |
| Height | 96 mm | 96 mm |
| Weight | — | 3.1 kg |
| Shape | Round | Round |
| Colours | White | White |
| App & smart home | ||
| App control | Yes | Yes |
