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- Master Aqua Pro vs RVM 4 Comfort Extra
ETA Master Aqua Pro vs Kärcher RVM 4 Comfort Extra
What Master Aqua Pro does better (2) and where RVM 4 Comfort Extra wins (6) — every spec side by side.
vs
6.0Cleaning power7.7
4.3Navigation8.5
6.7Mopping7.8
3.7Base station4.6
7.8Battery6.6
Dimensions
Size comparison
Master Aqua ProRVM 4 Comfort Extra
| Master Aqua Pro | RVM 4 Comfort Extra | Difference | |
|---|---|---|---|
| Height | 105 mm | 100 mm | +5 mm |
| Width / diameter | 349 mm | 350 mm | −1 mm |
| Length | 349 mm | 350 mm | −1 mm |
| Weight | 3.5 kg | 3.8 kg | −0.3 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is Master Aqua Pro better than RVM 4 Comfort Extra?
- Runtime240 min vs 160 min+50%
- Clean water tank (dock)3.3 l vs 2.5 l+32%
Why is RVM 4 Comfort Extra better than Master Aqua Pro?
- Obstacle avoidanceBasic sensors (infrared / bumper) vs AI camera
- Suction power8,000 Pa vs 15,000 Pa+88%
- Base stationMop-washing dock vs All-in-one dock (empty + wash)
- Height105 mm vs 100 mm+5%
- Charging time360 min vs 230 min+57%
- Noise level75 dB vs 66 dB+14%
Specifications
Side by side
| Suction & cleaning | ||
| Suction power | 8,000 Pa | 15,000 Pa |
| Dustbin (robot) | 800 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 | 75 dB | 66 dB |
| Navigation & obstacles | ||
| Navigation | Laser (LiDAR) | Laser (LiDAR) |
| Navigation sensors | LiDAR laser (LDS), Cliff sensors, Ultrasonic sensor | LiDAR laser (LDS), Wall sensor, Cliff sensors, Ultrasonic sensor |
| Obstacle avoidance | Basic sensors (infrared / bumper) | 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 | 10 mm | — |
| Extending mop (edges) | — | Yes |
| Base station | ||
| Base station | Mop-washing dock | All-in-one dock (empty + wash) |
| Auto-empty dust station | — | Yes |
| Dust bag (dock) | — | 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) | 3.3 l | 2.5 l |
| Dirty water tank (dock) | 3.7 l | 3 l |
| Battery & runtime | ||
| Battery capacity | 5,200 mAh | 5,200 mAh |
| Runtime | 240 min | 160 min |
| Charging time | 360 min | 230 min |
| Size & weight | ||
| Width / diameter | 349 mm | 350 mm |
| Length | 349 mm | 350 mm |
| Height | 105 mm | 100 mm |
| Weight | 3.5 kg | 3.8 kg |
| Shape | Round | Round |
| Colours | White | White |
| App & smart home | ||
| App control | Yes | Yes |
