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Dreame L40 Ultra Gen 2 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 L40 Ultra Gen 2
0.0/10$700
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 L40 Ultra Gen 2Roborock 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 L40 Ultra Gen 2 | Spec | Roborock Qrevo CurvX |
|---|---|---|
| $700 | Price | $1300 |
| 25000 | 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 L40 Ultra Gen 2 is more affordable at $700 vs $1300.