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- S9 vs A9sPro
Viomi S9 vs ZACO A9sPro
What S9 does better (0) and where A9sPro wins (1) — every spec side by side.
Why is S9 better than A9sPro?
S9 has no measurable advantages in this pair.
Why is A9sPro better than S9?
- Water tank (robot)250 ml vs 450 ml+80%
Specifications
Side by side
| Suction & cleaning | ||
| Dustbin (robot) | 300 ml | 300 ml |
| Noise level | — | 60 dB |
| Navigation & obstacles | ||
| Navigation | Laser (LiDAR) | — |
| Navigation sensors | LiDAR laser (LDS) | Cliff sensors |
| Obstacle avoidance | — | Basic sensors (infrared / bumper) |
| Room mapping & room selection | Yes | — |
| Mopping | ||
| Water tank (robot) | 250 ml | 450 ml |
| Base station | ||
| Base station | Charging dock | — |
| Battery & runtime | ||
| Runtime | — | 110 min |
| Charging time | 360 min | — |
| Size & weight | ||
| Width / diameter | — | 330 mm |
| Length | — | 330 mm |
| Height | — | 76 mm |
| Shape | Round | Round |
| Colours | White | — |
| App & smart home | ||
| App control | Yes | Yes |
| Voice assistants | — | Amazon Alexa |
| Remote control | — | Yes |
