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- RE4 vs Robot Vacuum S20
EZVIZ RE4 vs Xiaomi Robot Vacuum S20
What RE4 does better (4) and where Robot Vacuum S20 wins (2) — every spec side by side.
vs
3.4Cleaning power4.7
5.8Navigation4.3
4.7Mopping4.2
6.0Battery3.3
Dimensions
Size comparison
RE4Robot Vacuum S20
| RE4 | Robot Vacuum S20 | Difference | |
|---|---|---|---|
| Height | 95 mm | 98 mm | −3 mm |
| Width / diameter | 345 mm | 325 mm | +20 mm |
| Length | 345 mm | 325 mm | +20 mm |
| Weight | 3.1 kg | 3.5 kg | −0.4 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is RE4 better than Robot Vacuum S20?
- Runtime180 min vs 120 min+50%
- Battery capacity4,900 mAh vs 3,200 mAh+53%
- Height95 mm vs 98 mm+3%
- Water tank (robot)300 ml vs 270 ml+11%
Why is Robot Vacuum S20 better than RE4?
- Suction power4,000 Pa vs 5,000 Pa+25%
- Dustbin (robot)350 ml vs 400 ml+14%
Specifications
Side by side
| Suction & cleaning | ||
| Suction power | 4,000 Pa | 5,000 Pa |
| Dustbin (robot) | 350 ml | 400 ml |
| Main brush | Single main brush | Single main brush |
| Side brushes | 1 | 1 |
| Carpet detection | Yes | — |
| HEPA filter | — | Yes |
| Navigation & obstacles | ||
| Navigation | Laser (LiDAR) | Laser (LiDAR) |
| Navigation sensors | LiDAR laser (LDS), Wall sensor, Cliff sensors | LiDAR laser (LDS), Cliff sensors |
| Obstacle avoidance | Basic sensors (infrared / bumper) | Basic sensors (infrared / bumper) |
| Threshold climbing | 20 mm | — |
| No-go zones / virtual walls | Yes | Yes |
| Room mapping & room selection | Yes | Yes |
| Mopping | ||
| Mop type | Mop pad | Mop pad |
| Water tank (robot) | 300 ml | 270 ml |
| Base station | ||
| Base station | Charging dock | Charging dock |
| Battery & runtime | ||
| Battery capacity | 4,900 mAh | 3,200 mAh |
| Runtime | 180 min | 120 min |
| Charging time | 300 min | — |
| Cleaning area per charge | 300 m² | — |
| Size & weight | ||
| Width / diameter | 345 mm | 325 mm |
| Length | 345 mm | 325 mm |
| Height | 95 mm | 98 mm |
| Weight | 3.1 kg | 3.5 kg |
| Shape | Round | Round |
| Colours | White | Black |
| App & smart home | ||
| App control | Yes | Yes |
| Voice assistants | Amazon Alexa, Google Assistant | Amazon Alexa, Google Assistant |
| Remote control | — | Yes |
