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- D20 vs W9
Dreame D20 vs Vexilar W9
What D20 does better (2) and where W9 wins (0) — every spec side by side.
Why is D20 better than W9?
- Suction power13,000 Pa vs 8,000 Pa+62%
- Runtime285 min vs 180 min+58%
Why is W9 better than D20?
W9 has no measurable advantages in this pair.
Specifications
Side by side
| Suction & cleaning | ||
| Suction power | 13,000 Pa | 8,000 Pa |
| Dustbin (robot) | 700 ml | — |
| Main brush | Dual main brushes | — |
| Anti-tangle brush | Yes | — |
| Side brushes | 1 | — |
| Noise level | 74 dB | — |
| Navigation & obstacles | ||
| Navigation | Laser (LiDAR) | Laser (LiDAR) |
| Navigation sensors | LiDAR laser (LDS), Wall sensor, Cliff sensors | LiDAR laser (LDS) |
| Obstacle avoidance | Basic sensors (infrared / bumper) | — |
| Threshold climbing | 20 mm | — |
| No-go zones / virtual walls | Yes | — |
| Room mapping & room selection | Yes | Yes |
| Mopping | ||
| Mop type | Mop pad | — |
| Water tank (robot) | 350 ml | — |
| Base station | ||
| Base station | Charging dock | — |
| Battery & runtime | ||
| Battery capacity | 5,200 mAh | — |
| Runtime | 285 min | 180 min |
| Charging time | 360 min | — |
| Size & weight | ||
| Width / diameter | 350 mm | — |
| Length | 350 mm | — |
| Height | 97 mm | — |
| Weight | 3.5 kg | — |
| Shape | Round | — |
| Colours | Black | Black |
| App & smart home | ||
| App control | Yes | — |
| Voice assistants | Amazon Alexa, Google Assistant, Apple Siri | — |
