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- RVC 3 Comfort Extra vs RoboStar iQ900 Ultra
Kärcher RVC 3 Comfort Extra vs TESLA RoboStar iQ900 Ultra
What RVC 3 Comfort Extra does better (3) and where RoboStar iQ900 Ultra wins (5) — every spec side by side.
vs
7.9Cleaning power6.2
4.3Navigation5.8
4.4Mopping8.6
2.9Base station3.9
4.2Battery6.0
Dimensions
Size comparison
RVC 3 Comfort ExtraRoboStar iQ900 Ultra
| RVC 3 Comfort Extra | RoboStar iQ900 Ultra | Difference | |
|---|---|---|---|
| Height | 97 mm | 96 mm | +1 mm |
| Width / diameter | 330 mm | 320 mm | +10 mm |
| Length | 330 mm | 320 mm | +10 mm |
| Weight | 2.8 kg | 3.1 kg | −0.3 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is RVC 3 Comfort Extra better than RoboStar iQ900 Ultra?
- Suction power15,000 Pa vs 10,000 Pa+50%
- Dustbin (robot)520 ml vs 280 ml+86%
- Charging time230 min vs 270 min+17%
Why is RoboStar iQ900 Ultra better than RVC 3 Comfort Extra?
- Mop typeMop pad vs Rotating mop pads
- Battery capacity2,600 mAh vs 5,200 mAh2×
- Runtime130 min vs 168 min+29%
- Dust bag (dock)2.5 l vs 3 l+20%
- Noise level67 dB vs 64 dB+5%
Specifications
Side by side
| Suction & cleaning | ||
| Suction power | 15,000 Pa | 10,000 Pa |
| Dustbin (robot) | 520 ml | 280 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 | 67 dB | 64 dB |
| Navigation & obstacles | ||
| Navigation | Laser (LiDAR) | Laser (LiDAR) |
| Navigation sensors | LiDAR laser (LDS), Cliff sensors | LiDAR laser (LDS), Cliff sensors |
| Obstacle avoidance | Basic sensors (infrared / bumper) | Basic sensors (infrared / bumper) |
| Threshold climbing | — | 20 mm |
| No-go zones / virtual walls | Yes | Yes |
| Room mapping & room selection | Yes | Yes |
| Mopping | ||
| Mop type | Mop pad | Rotating mop pads |
| Mop lifting on carpets | — | Yes |
| Mop lift height | — | 15 mm |
| Extending mop (edges) | — | Yes |
| Water tank (robot) | 280 ml | — |
| Base station | ||
| Base station | Auto-empty dock | Auto-empty dock |
| Auto-empty dust station | Yes | Yes |
| Dust bag (dock) | 2.5 l | 3 l |
| Automatic water refill | — | Yes |
| Clean water tank (dock) | — | 4.6 l |
| Dirty water tank (dock) | — | 4.6 l |
| Battery & runtime | ||
| Battery capacity | 2,600 mAh | 5,200 mAh |
| Runtime | 130 min | 168 min |
| Charging time | 230 min | 270 min |
| Size & weight | ||
| Width / diameter | 330 mm | 320 mm |
| Length | 330 mm | 320 mm |
| Height | 97 mm | 96 mm |
| Weight | 2.8 kg | 3.1 kg |
| Shape | Round | Round |
| Colours | White | White |
| App & smart home | ||
| App control | Yes | Yes |
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