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- D9 Pro vs E4
Dreame D9 Pro vs Roborock E4
What D9 Pro does better (2) and where E4 wins (1) — every spec side by side.
Why is D9 Pro better than E4?
- NavigationLaser (LiDAR) vs Camera (vSLAM)
- Water tank (robot)270 ml vs 180 ml+50%
Why is E4 better than D9 Pro?
- Dustbin (robot)550 ml vs 640 ml+16%
Specifications
Side by side
| Suction & cleaning | ||
| Dustbin (robot) | 550 ml | 640 ml |
| Main brush | — | Single main brush |
| Side brushes | — | 1 |
| HEPA filter | — | Yes |
| Noise level | 60 dB | — |
| Navigation & obstacles | ||
| Navigation | Laser (LiDAR) | Camera (vSLAM) |
| Navigation sensors | LiDAR laser (LDS) | vSLAM camera |
| Obstacle avoidance | — | AI camera |
| Threshold climbing | — | 20 mm |
| Room mapping & room selection | Yes | Yes |
| Mopping | ||
| Water tank (robot) | 270 ml | 180 ml |
| Base station | ||
| Base station | — | Charging dock |
| Battery & runtime | ||
| Runtime | — | 120 min |
| Charging time | 360 min | 360 min |
| Size & weight | ||
| Weight | — | 3 kg |
| Shape | Round | — |
| Colours | White | Black |
| App & smart home | ||
| App control | Yes | Yes |
| Voice assistants | Amazon Alexa | Amazon Alexa, Google Assistant |
