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- Roomba j7 j7156 vs RCV 3
iRobot Roomba j7 j7156 vs Kärcher RCV 3
What Roomba j7 j7156 does better (1) and where RCV 3 wins (1) — every spec side by side.
vs
3.5Base station3.5
Why is Roomba j7 j7156 better than RCV 3?
- Dustbin (robot)400 ml vs 300 ml+33%
Why is RCV 3 better than Roomba j7 j7156?
- Charging time360 min vs 230 min+57%
Specifications
Side by side
| Suction & cleaning | ||
| Suction power | — | 2,500 Pa |
| Dustbin (robot) | 400 ml | 300 ml |
| Main brush | — | Single main brush |
| Side brushes | — | 1 |
| Noise level | — | 67 dB |
| Navigation & obstacles | ||
| Navigation | — | Laser (LiDAR) |
| Navigation sensors | — | LiDAR laser (LDS), Cliff sensors |
| Obstacle avoidance | — | Basic sensors (infrared / bumper) |
| Threshold climbing | — | 18 mm |
| No-go zones / virtual walls | — | Yes |
| Room mapping & room selection | — | Yes |
| Mopping | ||
| Water tank (robot) | — | 170 ml |
| Base station | ||
| Base station | Charging dock | Charging dock |
| Battery & runtime | ||
| Battery capacity | — | 3,200 mAh |
| Runtime | — | 120 min |
| Charging time | 360 min | 230 min |
| Cleaning area per charge | — | 85 m² |
| Size & weight | ||
| Width / diameter | — | 350 mm |
| Length | — | 350 mm |
| Height | — | 94 mm |
| Weight | — | 3.7 kg |
| Shape | Round | Round |
| Colours | Grey | White, Yellow |
| App & smart home | ||
| App control | Yes | Yes |
| Voice assistants | Amazon Alexa, Google Assistant | — |
