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- RE4 vs W9
EZVIZ RE4 vs Vactidy W9
What RE4 does better (0) and where W9 wins (0) — every spec side by side.
Why is RE4 better than W9?
RE4 has no measurable advantages in this pair.
Why is W9 better than RE4?
W9 has no measurable advantages in this pair.
Specifications
Side by side
| Suction & cleaning | ||
| Suction power | 4,000 Pa | — |
| Dustbin (robot) | 350 ml | — |
| Main brush | Single main brush | — |
| Side brushes | 1 | — |
| Carpet detection | Yes | — |
| Noise level | — | 67 dB |
| Navigation & obstacles | ||
| Navigation | Laser (LiDAR) | — |
| Navigation sensors | LiDAR laser (LDS), Wall sensor, 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) | 300 ml | — |
| Base station | ||
| Base station | Charging dock | — |
| Battery & runtime | ||
| Battery capacity | 4,900 mAh | — |
| Runtime | 180 min | 180 min |
| Charging time | 300 min | — |
| Cleaning area per charge | 300 m² | — |
| Size & weight | ||
| Width / diameter | 345 mm | — |
| Length | 345 mm | — |
| Height | 95 mm | — |
| Weight | 3.1 kg | — |
| Shape | Round | Round |
| Colours | White | Black |
| App & smart home | ||
| App control | Yes | Yes |
| Voice assistants | Amazon Alexa, Google Assistant | Amazon Alexa, Google Assistant |
