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- RC3S vs MD 20021
Aeno RC3S vs Medion MD 20021
What RC3S does better (0) and where MD 20021 wins (4) — every spec side by side.
Dimensions
Size comparison
RC3SMD 20021
| RC3S | MD 20021 | Difference | |
|---|---|---|---|
| Height | 96 mm | 80 mm | +16 mm |
| Width / diameter | 330 mm | 350 mm | −20 mm |
| Length | 330 mm | 350 mm | −20 mm |
| Weight | 2.7 kg | 3.4 kg | −0.7 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is RC3S better than MD 20021?
RC3S has no measurable advantages in this pair.
Why is MD 20021 better than RC3S?
- Suction power2,500 Pa vs 2,800 Pa+12%
- Runtime130 min vs 140 min+8%
- Height96 mm vs 80 mm+20%
- Charging time300 min vs 240 min+25%
Specifications
Side by side
| Suction & cleaning | ||
| Suction power | 2,500 Pa | 2,800 Pa |
| Dustbin (robot) | 600 ml | 600 ml |
| Main brush | Single main brush | Single main brush |
| Side brushes | 2 | 2 |
| HEPA filter | Yes | — |
| Noise level | 65 dB | — |
| Navigation & obstacles | ||
| Navigation | Laser (LiDAR) | — |
| Navigation sensors | LiDAR laser (LDS), Gyroscope, Cliff sensors | Cliff sensors |
| Obstacle avoidance | Basic sensors (infrared / bumper) | Basic sensors (infrared / bumper) |
| Threshold climbing | 18 mm | — |
| No-go zones / virtual walls | Yes | — |
| Room mapping & room selection | Yes | — |
| Mopping | ||
| Mop type | Mop pad | Mop pad |
| Water tank (robot) | 350 ml | — |
| Base station | ||
| Base station | Charging dock | Charging dock |
| Battery & runtime | ||
| Battery capacity | 3,000 mAh | — |
| Runtime | 130 min | 140 min |
| Charging time | 300 min | 240 min |
| Cleaning area per charge | 150 m² | — |
| Size & weight | ||
| Width / diameter | 330 mm | 350 mm |
| Length | 330 mm | 350 mm |
| Height | 96 mm | 80 mm |
| Weight | 2.7 kg | 3.4 kg |
| Shape | Round | Round |
| Colours | Black | White |
| App & smart home | ||
| App control | Yes | Yes |
| Voice assistants | Amazon Alexa, Google Assistant, Apple Siri | Amazon Alexa, Google Assistant |
