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- MD 18501 vs E4
Medion MD 18501 vs Roborock E4
What MD 18501 does better (2) and where E4 wins (3) — every spec side by side.
Why is MD 18501 better than E4?
- Water tank (robot)250 ml vs 180 ml+39%
- Charging time270 min vs 360 min+33%
Why is E4 better than MD 18501?
- Obstacle avoidanceBasic sensors (infrared / bumper) vs AI camera
- Runtime90 min vs 120 min+33%
- Dustbin (robot)300 ml vs 640 ml2.1×
Specifications
Side by side
| Suction & cleaning | ||
| Suction power | 900 Pa | — |
| Dustbin (robot) | 300 ml | 640 ml |
| Main brush | — | Single main brush |
| Side brushes | 2 | 1 |
| HEPA filter | — | Yes |
| Navigation & obstacles | ||
| Navigation | — | Camera (vSLAM) |
| Navigation sensors | Cliff sensors | vSLAM camera |
| Obstacle avoidance | Basic sensors (infrared / bumper) | AI camera |
| Threshold climbing | 20 mm | 20 mm |
| No-go zones / virtual walls | Yes | — |
| Room mapping & room selection | — | Yes |
| Mopping | ||
| Mop type | Mop pad | — |
| Water tank (robot) | 250 ml | 180 ml |
| Base station | ||
| Base station | Charging dock | Charging dock |
| Battery & runtime | ||
| Runtime | 90 min | 120 min |
| Charging time | 270 min | 360 min |
| Cleaning area per charge | 100 m² | — |
| Size & weight | ||
| Width / diameter | 300 mm | — |
| Length | 300 mm | — |
| Height | 80 mm | — |
| Weight | 2.1 kg | 3 kg |
| Shape | Round | — |
| Colours | White | Black |
| App & smart home | ||
| App control | — | Yes |
| Voice assistants | — | Amazon Alexa, Google Assistant |
| Remote control | Yes | — |
