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- T1s Pro vs S9
Lenovo T1s Pro vs Viomi S9
What T1s Pro does better (3) and where S9 wins (1) — every spec side by side.
Why is T1s Pro better than S9?
- Base stationAuto-empty dock vs Charging dock
- Dustbin (robot)400 ml vs 300 ml+33%
- Charging time300 min vs 360 min+20%
Why is S9 better than T1s Pro?
- Water tank (robot)110 ml vs 250 ml2.3×
Specifications
Side by side
| Suction & cleaning | ||
| Dustbin (robot) | 400 ml | 300 ml |
| Main brush | Single main brush | — |
| Side brushes | 2 | — |
| HEPA filter | Yes | — |
| Noise level | 65 dB | — |
| Navigation & obstacles | ||
| Navigation | — | Laser (LiDAR) |
| Navigation sensors | — | LiDAR laser (LDS) |
| Obstacle avoidance | Basic sensors (infrared / bumper) | — |
| Room mapping & room selection | — | Yes |
| Mopping | ||
| Mop type | Mop pad | — |
| Water tank (robot) | 110 ml | 250 ml |
| Base station | ||
| Base station | Auto-empty dock | Charging dock |
| Auto-empty dust station | Yes | — |
| Battery & runtime | ||
| Runtime | 180 min | — |
| Charging time | 300 min | 360 min |
| Cleaning area per charge | 200 m² | — |
| Size & weight | ||
| Shape | — | Round |
| Colours | White, Gold | White |
| App & smart home | ||
| App control | Yes | Yes |
| Voice assistants | Amazon Alexa, Google Assistant | — |
