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- RVF 7 Comfort Extra vs RVM 4 Comfort Extra
Kärcher RVF 7 Comfort Extra vs Kärcher RVM 4 Comfort Extra
What RVF 7 Comfort Extra does better (3) and where RVM 4 Comfort Extra wins (3) — every spec side by side.
vs
6.1Cleaning power7.7
7.3Navigation8.5
9.7Mopping7.8
7.1Base station4.6
6.1Battery6.6
Dimensions
Size comparison
RVF 7 Comfort ExtraRVM 4 Comfort Extra
| RVF 7 Comfort Extra | RVM 4 Comfort Extra | Difference | |
|---|---|---|---|
| Height | 105 mm | 100 mm | +5 mm |
| Width / diameter | 360 mm | 350 mm | +10 mm |
| Length | 360 mm | 350 mm | +10 mm |
| Weight | 5.6 kg | 3.8 kg | +1.8 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is RVF 7 Comfort Extra better than RVM 4 Comfort Extra?
- Mop typeRoller mop vs Rotating mop pads
- Dust bag (dock)4 l vs 2.3 l+74%
- Clean water tank (dock)3.2 l vs 2.5 l+30%
Why is RVM 4 Comfort Extra better than RVF 7 Comfort Extra?
- Suction power13,000 Pa vs 15,000 Pa+15%
- Runtime150 min vs 160 min+7%
- Height105 mm vs 100 mm+5%
Specifications
Side by side
| Suction & cleaning | ||
| Suction power | 13,000 Pa | 15,000 Pa |
| Dustbin (robot) | 250 ml | — |
| Main brush | Single main brush | Single main brush |
| Anti-tangle brush | Yes | — |
| Side brushes | 2 | 1 |
| Carpet detection | Yes | Yes |
| Dirt detection | Yes | — |
| Noise level | 67 dB | 66 dB |
| Navigation & obstacles | ||
| Navigation | Laser (LiDAR) | Laser (LiDAR) |
| Navigation sensors | LiDAR laser (LDS), Wall sensor, Cliff sensors | LiDAR laser (LDS), Wall sensor, Cliff sensors, Ultrasonic sensor |
| Obstacle avoidance | AI camera | AI camera |
| Threshold climbing | 18 mm | — |
| Room mapping & room selection | Yes | Yes |
| Mopping | ||
| Mop type | Roller mop | Rotating mop pads |
| Mop lifting on carpets | Yes | Yes |
| Extending mop (edges) | — | Yes |
| Water tank (robot) | 130 ml | — |
| 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) | 4 l | 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) | 3.2 l | 2.5 l |
| Dirty water tank (dock) | 2.5 l | 3 l |
| Battery & runtime | ||
| Battery capacity | 5,200 mAh | 5,200 mAh |
| Runtime | 150 min | 160 min |
| Charging time | 230 min | 230 min |
| Size & weight | ||
| Width / diameter | 360 mm | 350 mm |
| Length | 360 mm | 350 mm |
| Height | 105 mm | 100 mm |
| Weight | 5.6 kg | 3.8 kg |
| Shape | Round | Round |
| Colours | White, Black | White |
| App & smart home | ||
| App control | Yes | Yes |
| Live camera view / video call | Yes | — |
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