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- Roomba Max 705 Vac vs RCF 3
iRobot Roomba Max 705 Vac vs Kärcher RCF 3
What Roomba Max 705 Vac does better (3) and where RCF 3 wins (2) — every spec side by side.
vs
7.6Navigation4.0
9.1Base station5.4
9.1Battery5.0
Dimensions
Size comparison
Roomba Max 705 VacRCF 3
| Roomba Max 705 Vac | RCF 3 | Difference | |
|---|---|---|---|
| Height | 104 mm | 120 mm | −16 mm |
| Width / diameter | 350 mm | 340 mm | +10 mm |
| Length | 350 mm | 340 mm | +10 mm |
| Weight | 3.4 kg | 4.5 kg | −1.1 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is Roomba Max 705 Vac better than RCF 3?
- Base stationAuto-empty dock vs Charging dock
- Threshold climbing20 mm vs 15 mm+33%
- Height104 mm vs 120 mm+15%
Why is RCF 3 better than Roomba Max 705 Vac?
- Battery capacity5,000 mAh vs 5,200 mAh+4%
- Charging time240 min vs 180 min+33%
Specifications
Side by side
| Suction & cleaning | ||
| Dustbin (robot) | 275 ml | — |
| Main brush | Dual main brushes | — |
| Anti-tangle brush | Yes | — |
| Side brushes | 1 | — |
| Carpet detection | — | Yes |
| Dirt detection | Yes | — |
| Noise level | 74 dB | — |
| Navigation & obstacles | ||
| Navigation | Laser (LiDAR) | Laser (LiDAR) |
| Navigation sensors | LiDAR laser (LDS), Cliff sensors | LiDAR laser (LDS), Cliff sensors, Ultrasonic sensor |
| Obstacle avoidance | Basic sensors (infrared / bumper) | Basic sensors (infrared / bumper) |
| Threshold climbing | 20 mm | 15 mm |
| No-go zones / virtual walls | — | Yes |
| Room mapping & room selection | Yes | Yes |
| Mopping | ||
| Mop type | — | Roller mop |
| Base station | ||
| Base station | Auto-empty dock | Charging dock |
| Auto-empty dust station | Yes | — |
| Battery & runtime | ||
| Battery capacity | 5,000 mAh | 5,200 mAh |
| Runtime | — | 120 min |
| Charging time | 240 min | 180 min |
| Cleaning area per charge | — | 80 m² |
| Recharge & resume | Yes | — |
| Size & weight | ||
| Width / diameter | 350 mm | 340 mm |
| Length | 350 mm | 340 mm |
| Height | 104 mm | 120 mm |
| Weight | 3.4 kg | 4.5 kg |
| Shape | Round | Round |
| Colours | Black | White, Black |
| App & smart home | ||
| App control | Yes | Yes |
| Voice assistants | Amazon Alexa, Google Assistant, Apple Siri | — |
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