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- RVF 7 Comfort Extra vs Flow 2
Kärcher RVF 7 Comfort Extra vs Narwal Flow 2
What RVF 7 Comfort Extra does better (0) and where Flow 2 wins (6) — every spec side by side.
vs
6.1Cleaning power9.7
7.3Navigation9.1
9.7Mopping9.1
7.1Base station7.6
6.1Battery9.8
Dimensions
Size comparison
RVF 7 Comfort ExtraFlow 2
| RVF 7 Comfort Extra | Flow 2 | Difference | |
|---|---|---|---|
| Height | 105 mm | 95 mm | +10 mm |
| Width / diameter | 360 mm | 364 mm | −4 mm |
| Length | 360 mm | 364 mm | −4 mm |
| Weight | 5.6 kg | 5 kg | +0.6 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is RVF 7 Comfort Extra better than Flow 2?
RVF 7 Comfort Extra has no measurable advantages in this pair.
Why is Flow 2 better than RVF 7 Comfort Extra?
- Suction power13,000 Pa vs 31,000 Pa2.4×
- Threshold climbing18 mm vs 40 mm2.2×
- Battery capacity5,200 mAh vs 6,500 mAh+25%
- Height105 mm vs 95 mm+11%
- Charging time230 min vs 180 min+28%
- Noise level67 dB vs 56 dB+19%
Specifications
Side by side
| Suction & cleaning | ||
| Suction power | 13,000 Pa | 31,000 Pa |
| Dustbin (robot) | 250 ml | — |
| Main brush | Single main brush | Single main brush |
| Anti-tangle brush | Yes | Yes |
| Side brushes | 2 | 1 |
| Carpet detection | Yes | Yes |
| Dirt detection | Yes | Yes |
| Noise level | 67 dB | 56 dB |
| Navigation & obstacles | ||
| Navigation | Laser (LiDAR) | Laser (LiDAR) |
| Navigation sensors | LiDAR laser (LDS), Wall sensor, Cliff sensors | LiDAR laser (LDS), Cliff sensors |
| Obstacle avoidance | AI camera | AI camera |
| Threshold climbing | 18 mm | 40 mm |
| No-go zones / virtual walls | — | Yes |
| Room mapping & room selection | Yes | Yes |
| Mopping | ||
| Mop type | Roller mop | Roller mop |
| Mop lifting on carpets | Yes | Yes |
| Mop lift height | — | 12 mm |
| 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 | — |
| Mop washing in the dock | Yes | Yes |
| Hot-water mop washing | Yes | Yes |
| Hot-air mop drying | Yes | Yes |
| Automatic water refill | Yes | Yes |
| Clean water tank (dock) | 3.2 l | — |
| Dirty water tank (dock) | 2.5 l | — |
| Battery & runtime | ||
| Battery capacity | 5,200 mAh | 6,500 mAh |
| Runtime | 150 min | — |
| Charging time | 230 min | 180 min |
| Cleaning area per charge | — | 289 m² |
| Size & weight | ||
| Width / diameter | 360 mm | 364 mm |
| Length | 360 mm | 364 mm |
| Height | 105 mm | 95 mm |
| Weight | 5.6 kg | 5 kg |
| Shape | Round | Round |
| Colours | White, Black | Grey |
| App & smart home | ||
| App control | Yes | Yes |
| Voice assistants | — | Amazon Alexa, Google Assistant, Apple Siri |
| Live camera view / video call | Yes | Yes |
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