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- Roomba Combo j9+ vs Qrevo Curv
iRobot Roomba Combo j9+ vs Roborock Qrevo Curv
What Roomba Combo j9+ does better (2) and where Qrevo Curv wins (6) — every spec side by side.
vs
2.6Navigation9.1
5.0Mopping7.8
5.3Base station6.9
5.9Battery8.8
Dimensions
Size comparison
Roomba Combo j9+Qrevo Curv
| Roomba Combo j9+ | Qrevo Curv | Difference | |
|---|---|---|---|
| Height | 87 mm | 103 mm | −16 mm |
| Width / diameter | 348 mm | 352 mm | −4 mm |
| Length | 348 mm | 352 mm | −4 mm |
| Weight | 4.1 kg | 4.3 kg | −0.2 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is Roomba Combo j9+ better than Qrevo Curv?
- Height87 mm vs 103 mm+18%
- Charging time180 min vs 270 min+50%
Why is Qrevo Curv better than Roomba Combo j9+?
- Obstacle avoidanceBasic sensors (infrared / bumper) vs AI camera
- Mop typeMop pad vs Rotating mop pads
- Base stationAuto-empty dock vs All-in-one dock (empty + wash)
- Battery capacity4,500 mAh vs 6,400 mAh+42%
- Clean water tank (dock)3 l vs 3.8 l+27%
- Dustbin (robot)313 ml vs 325 ml+4%
Specifications
Side by side
| Suction & cleaning | ||
| Suction power | — | 18,500 Pa |
| Dustbin (robot) | 313 ml | 325 ml |
| Main brush | Dual main brushes | Single main brush |
| Anti-tangle brush | — | Yes |
| Side brushes | 1 | 1 |
| Extending side brush | — | Yes |
| Carpet detection | Yes | Yes |
| Dirt detection | Yes | — |
| Noise level | — | 60 dB |
| Navigation & obstacles | ||
| Navigation | — | Laser (LiDAR) |
| Navigation sensors | Cliff sensors | LiDAR laser (LDS), Wall sensor, Cliff sensors |
| Obstacle avoidance | Basic sensors (infrared / bumper) | AI camera |
| Threshold climbing | — | 40 mm |
| No-go zones / virtual walls | — | Yes |
| Room mapping & room selection | Yes | Yes |
| Mopping | ||
| Mop type | Mop pad | Rotating mop pads |
| Mop lifting on carpets | Yes | Yes |
| Extending mop (edges) | — | Yes |
| Water tank (robot) | 210 ml | — |
| Base station | ||
| Base station | Auto-empty dock | All-in-one dock (empty + wash) |
| Auto-empty dust station | Yes | Yes |
| Dust bag (dock) | — | 2.5 l |
| Mop washing in the dock | — | Yes |
| Hot-water mop washing | — | Yes |
| Hot-air mop drying | — | Yes |
| Automatic water refill | Yes | Yes |
| Clean water tank (dock) | 3 l | 3.8 l |
| Dirty water tank (dock) | — | 2.9 l |
| Battery & runtime | ||
| Battery capacity | 4,500 mAh | 6,400 mAh |
| Runtime | — | 190 min |
| Charging time | 180 min | 270 min |
| Cleaning area per charge | — | 400 m² |
| Recharge & resume | Yes | — |
| Size & weight | ||
| Width / diameter | 348 mm | 352 mm |
| Length | 348 mm | 352 mm |
| Height | 87 mm | 103 mm |
| Weight | 4.1 kg | 4.3 kg |
| Shape | Round | Round |
| Colours | Black, Gold | White |
| App & smart home | ||
| App control | Yes | Yes |
| Voice assistants | Amazon Alexa, Google Assistant, Apple Siri | Amazon Alexa, Google Assistant, Apple Siri |
| Live camera view / video call | — | Yes |
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