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- RVM 4 Comfort vs Qrevo Edge 2
Kärcher RVM 4 Comfort vs Roborock Qrevo Edge 2
What RVM 4 Comfort does better (1) and where Qrevo Edge 2 wins (4) — every spec side by side.
vs
7.7Cleaning power9.2
8.5Navigation7.9
7.8Mopping8.3
4.6Base station7.6
6.6Battery7.8
Dimensions
Size comparison
RVM 4 ComfortQrevo Edge 2
| RVM 4 Comfort | Qrevo Edge 2 | Difference | |
|---|---|---|---|
| Height | 100 mm | 80 mm | +20 mm |
| Width / diameter | 350 mm | 352 mm | −2 mm |
| Length | 350 mm | 352 mm | −2 mm |
| Weight | 3.8 kg | 4.5 kg | −0.7 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is RVM 4 Comfort better than Qrevo Edge 2?
- Charging time230 min vs 240 min+4%
Why is Qrevo Edge 2 better than RVM 4 Comfort?
- Suction power15,000 Pa vs 25,000 Pa+67%
- Runtime160 min vs 190 min+19%
- Height100 mm vs 80 mm+25%
- Noise level66 dB vs 64 dB+3%
Specifications
Side by side
| Suction & cleaning | ||
| Suction power | 15,000 Pa | 25,000 Pa |
| Main brush | Single main brush | Single main brush |
| Anti-tangle brush | — | Yes |
| Side brushes | 1 | 1 |
| Extending side brush | — | Yes |
| Carpet detection | Yes | Yes |
| Noise level | 66 dB | 64 dB |
| Navigation & obstacles | ||
| Navigation | Laser (LiDAR) | Laser (LiDAR) |
| Navigation sensors | LiDAR laser (LDS), Wall sensor, Cliff sensors, Ultrasonic sensor | LiDAR laser (LDS), dToF laser, Retractable LiDAR, Wall sensor, Cliff sensors |
| Retractable LiDAR | — | Yes |
| Obstacle avoidance | AI camera | AI camera |
| No-go zones / virtual walls | — | 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 | — | 12 mm |
| Automatic mop removal | — | Yes |
| Extending mop (edges) | Yes | — |
| Base station | ||
| Base station | All-in-one dock (empty + wash) | All-in-one dock (empty + wash) |
| Auto-empty dust station | Yes | Yes |
| Dust bag (dock) | 2.3 l | — |
| Mop washing in the dock | Yes | Yes |
| Hot-water mop washing | — | Yes |
| Hot-air mop drying | Yes | Yes |
| Automatic water refill | Yes | Yes |
| Clean water tank (dock) | 2.5 l | — |
| Dirty water tank (dock) | 3 l | — |
| Battery & runtime | ||
| Battery capacity | 5,200 mAh | 5,200 mAh |
| Runtime | 160 min | 190 min |
| Charging time | 230 min | 240 min |
| Size & weight | ||
| Width / diameter | 350 mm | 352 mm |
| Length | 350 mm | 352 mm |
| Height | 100 mm | 80 mm |
| Weight | 3.8 kg | 4.5 kg |
| Shape | Round | Round |
| Colours | White | Black |
| App & smart home | ||
| App control | Yes | Yes |
| Voice assistants | — | Amazon Alexa, Google Assistant, Apple Siri |
| Matter | — | Yes |
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