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- W9 vs Robot Vacuum S40
Vactidy W9 vs Xiaomi Robot Vacuum S40
What W9 does better (0) and where Robot Vacuum S40 wins (1) — every spec side by side.
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7.1Battery6.2
Why is W9 better than Robot Vacuum S40?
W9 has no measurable advantages in this pair.
Why is Robot Vacuum S40 better than W9?
- Noise level67 dB vs 63 dB+6%
Specifications
Side by side
| Suction & cleaning | ||
| Suction power | — | 10,000 Pa |
| Dustbin (robot) | — | 520 ml |
| Main brush | — | Single main brush |
| Anti-tangle brush | — | Yes |
| Side brushes | — | 1 |
| Noise level | 67 dB | 63 dB |
| Navigation & obstacles | ||
| Navigation | — | Laser (LiDAR) |
| Navigation sensors | — | LiDAR laser (LDS), Cliff sensors |
| Obstacle avoidance | — | Basic sensors (infrared / bumper) |
| Threshold climbing | — | 20 mm |
| No-go zones / virtual walls | — | Yes |
| Room mapping & room selection | — | Yes |
| Mopping | ||
| Mop type | — | Mop pad |
| Water tank (robot) | — | 270 ml |
| Base station | ||
| Base station | — | Charging dock |
| Battery & runtime | ||
| Battery capacity | — | 5,200 mAh |
| Runtime | 180 min | 180 min |
| Charging time | — | 360 min |
| Size & weight | ||
| Width / diameter | — | 340 mm |
| Length | — | 340 mm |
| Height | — | 98 mm |
| Weight | — | 4.1 kg |
| Shape | Round | Round |
| Colours | Black | White |
| App & smart home | ||
| App control | Yes | Yes |
| Voice assistants | Amazon Alexa, Google Assistant | Amazon Alexa, Google Assistant |
