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Dreame L40s Ultra vs Roborock Qrevo CurvX
The Roborock Qrevo CurvX wins with a score of 8.5/10. Best for: Hardwood-heavy homes with one shedding pet and low-clearance furniture (1,400+ sq ft)..
Dreame L40s Ultra
0.0/10$800
Winner
Roborock Qrevo CurvX
8.5/10$1300
Roborock's slimmest flagship — exceptional on hardwood and corners, weaker on heavy pet hair than the spec sheet suggests.
Read full reviewScore Comparison
Dreame L40s UltraRoborock Qrevo CurvX
Overall
—8.5
Hard Floor
—9.0
Carpet
—8.5
Mopping
—8.7
Navigation
—9.0
Noise
—8.8
Smart Features
—9.0
Maintenance
—8.0
Specifications
| Dreame L40s Ultra | Spec | Roborock Qrevo CurvX |
|---|---|---|
| $800 | Price | $1300 |
| 16000 | Suction (Pa) | 22000 |
| — | Battery (mAh) | 5200 |
| — | Noise (dB) | 56.0 |
| — | Dustbin (ml) | — |
| — | Water Tank (ml) | — |
| — | Mop Lift (mm) | — |
| — | Height (mm) | — |
| — | Weight (kg) | — |
| LiDAR + 3D Structured Light | Navigation | RetractSense LiDAR + RGB + ToF |
| ✅ | Self-Empty | ✅ |
| ✅ | Self-Wash Mop | ✅ |
| ✅ | Self-Dry Mop | ✅ |
| ✅ | AI Obstacle | ✅ |
The Verdict
The Roborock Qrevo CurvX is the better choice with an overall score of 8.5/10 — best for hardwood-heavy homes with one shedding pet and low-clearance furniture (1,400+ sq ft).. The Dreame L40s Ultra is more affordable at $800 vs $1300.