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- E5 vs S9
Roborock E5 vs Viomi S9
What E5 does better (1) and where S9 wins (2) — every spec side by side.
Why is E5 better than S9?
- Dustbin (robot)820 ml vs 300 ml2.7×
Why is S9 better than E5?
- NavigationCamera (vSLAM) vs Laser (LiDAR)
- Water tank (robot)180 ml vs 250 ml+39%
Specifications
Side by side
| Suction & cleaning | ||
| Suction power | 2,500 Pa | — |
| Dustbin (robot) | 820 ml | 300 ml |
| Main brush | Single main brush | — |
| Side brushes | 1 | — |
| Noise level | 67 dB | — |
| Navigation & obstacles | ||
| Navigation | Camera (vSLAM) | Laser (LiDAR) |
| Navigation sensors | vSLAM camera, Gyroscope, Cliff sensors | LiDAR laser (LDS) |
| Obstacle avoidance | AI camera | — |
| Threshold climbing | 20 mm | — |
| No-go zones / virtual walls | Yes | — |
| Room mapping & room selection | Yes | Yes |
| Mopping | ||
| Water tank (robot) | 180 ml | 250 ml |
| Base station | ||
| Base station | Charging dock | Charging dock |
| Battery & runtime | ||
| Battery capacity | 5,200 mAh | — |
| Runtime | 200 min | — |
| Charging time | 360 min | 360 min |
| Cleaning area per charge | 150 m² | — |
| Recharge & resume | Yes | — |
| Size & weight | ||
| Width / diameter | 350 mm | — |
| Length | 350 mm | — |
| Height | 90 mm | — |
| Weight | 3 kg | — |
| Shape | Round | Round |
| Colours | Black | White |
| App & smart home | ||
| App control | Yes | Yes |
| Voice assistants | Amazon Alexa, Google Assistant | — |
| Remote control | Yes | — |
