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- Ultimate 800 vs RVM 4 Comfort
Electrolux Ultimate 800 vs Kärcher RVM 4 Comfort
What Ultimate 800 does better (1) and where RVM 4 Comfort wins (3) — every spec side by side.
vs
8.6Navigation8.6
5.0Base station6.8
Why is Ultimate 800 better than RVM 4 Comfort?
- Clean water tank (dock)4 l vs 2.5 l+60%
Why is RVM 4 Comfort better than Ultimate 800?
- Base stationCharging dock vs All-in-one dock (empty + wash)
- Charging time360 min vs 230 min+57%
- Noise level75 dB vs 66 dB+14%
Specifications
Side by side
| Suction & cleaning | ||
| Suction power | — | 15,000 Pa |
| Dustbin (robot) | 300 ml | — |
| Main brush | — | Single main brush |
| Side brushes | — | 1 |
| Carpet detection | — | Yes |
| HEPA filter | Yes | — |
| Noise level | 75 dB | 66 dB |
| Navigation & obstacles | ||
| Navigation | Laser (LiDAR) | Laser (LiDAR) |
| Navigation sensors | LiDAR laser (LDS) | 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 |
| Mop lifting on carpets | — | Yes |
| Extending mop (edges) | — | Yes |
| Base station | ||
| Base station | Charging dock | All-in-one dock (empty + wash) |
| Auto-empty dust station | — | Yes |
| Dust bag (dock) | — | 2.3 l |
| Mop washing in the dock | — | Yes |
| Hot-air mop drying | — | Yes |
| Automatic water refill | — | Yes |
| Clean water tank (dock) | 4 l | 2.5 l |
| Dirty water tank (dock) | — | 3 l |
| Battery & runtime | ||
| Battery capacity | — | 5,200 mAh |
| Runtime | — | 160 min |
| Charging time | 360 min | 230 min |
| Size & weight | ||
| Width / diameter | — | 350 mm |
| Length | — | 350 mm |
| Height | — | 100 mm |
| Weight | — | 3.8 kg |
| Shape | Round | Round |
| Colours | White | White |
| App & smart home | ||
| App control | — | Yes |
| Remote control | Yes | — |
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