Key specifications
| Suction | 7,000 Pa |
|---|---|
| Runtime | 260 min |
| Battery | 6,400 mAh |
| Navigation | LiDAR |
| Obstacle avoidance | 3D structured light + AI camera |
| Dock | Auto-Empty, Auto-Mop Washing, Hot-Air Drying, Auto-Water Refill |
| Bin | 350 ml · 75-day bag |
| Noise | 65 dB(A) |
| Weight | 4.7 kg |
| Smart home | Alexa, Google Home, Siri Shortcuts |
Pros
- 260-minute runtime cleans 300 m² on one charge
- MopExtend pushes a pad under cabinet toe-kicks
- Removable mop pads let it vacuum carpet with no pads attached
Cons
- App translations are occasionally awkward
- No Matter support
Performance
Hard-floor pickup matched the JONR and Roborock at 99%; carpet pickup was a step behind (86% high pile). The mop-detach feature is unique: the robot leaves its pads at the dock before vacuuming carpeted rooms.
Test results
| Test | Result |
|---|---|
| Hardwood debris pickup | 99% |
| High-pile carpet debris | 86% |
| Runtime measured | 251 min |
| Noise @ 1 m | 65 dB(A) |
Laboratory Score Breakdown
9.2
BVC LAB SCORE
Out of 10 · Independently Measured Score Breakdown (5 metrics)
Hardwood / Floors 9.6
Pet Hair / Carpet 9.2
Navigation & Edges 9.4
App & Controls 8.6
Value Ratio 8.2
Should you buy the Dreame L20 Ultra? Its mop-detach trick and enormous battery are unmatched; the app is the only weak spot.
Check price · $999