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- RVM 4 Comfort vs RVM 4 Comfort Extra
Kärcher RVM 4 Comfort vs Kärcher RVM 4 Comfort Extra
What RVM 4 Comfort does better (0) and where RVM 4 Comfort Extra wins (0) — every spec side by side.
vs
7.7Cleaning power7.7
8.5Navigation8.5
7.8Mopping7.8
4.6Base station4.6
6.6Battery6.6
Dimensions
Size comparison
RVM 4 ComfortRVM 4 Comfort Extra
| RVM 4 Comfort | RVM 4 Comfort Extra | Difference | |
|---|---|---|---|
| Height | 100 mm | 100 mm | = |
| Width / diameter | 350 mm | 350 mm | = |
| Length | 350 mm | 350 mm | = |
| Weight | 3.8 kg | 3.8 kg | = |
Drawn to the same scale from the official dimensions (front and side).
Why is RVM 4 Comfort better than RVM 4 Comfort Extra?
RVM 4 Comfort has no measurable advantages in this pair.
Why is RVM 4 Comfort Extra better than RVM 4 Comfort?
RVM 4 Comfort Extra has no measurable advantages in this pair.
Specifications
Side by side
| Suction & cleaning | ||
| Suction power | 15,000 Pa | 15,000 Pa |
| Main brush | Single main brush | Single main brush |
| Side brushes | 1 | 1 |
| Carpet detection | Yes | Yes |
| Noise level | 66 dB | 66 dB |
| Navigation & obstacles | ||
| Navigation | Laser (LiDAR) | Laser (LiDAR) |
| Navigation sensors | LiDAR laser (LDS), Wall sensor, Cliff sensors, Ultrasonic sensor | LiDAR laser (LDS), Wall sensor, Cliff sensors, Ultrasonic sensor |
| Obstacle avoidance | AI camera | AI camera |
| Room mapping & room selection | Yes | Yes |
| Mopping | ||
| Mop type | Rotating mop pads | Rotating mop pads |
| Mop lifting on carpets | Yes | Yes |
| Extending mop (edges) | Yes | 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 | 2.3 l |
| Mop washing in the dock | Yes | Yes |
| Hot-air mop drying | Yes | Yes |
| Automatic water refill | Yes | Yes |
| Clean water tank (dock) | 2.5 l | 2.5 l |
| Dirty water tank (dock) | 3 l | 3 l |
| Battery & runtime | ||
| Battery capacity | 5,200 mAh | 5,200 mAh |
| Runtime | 160 min | 160 min |
| Charging time | 230 min | 230 min |
| Size & weight | ||
| Width / diameter | 350 mm | 350 mm |
| Length | 350 mm | 350 mm |
| Height | 100 mm | 100 mm |
| Weight | 3.8 kg | 3.8 kg |
| Shape | Round | Round |
| Colours | White | White |
| App & smart home | ||
| App control | Yes | Yes |
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