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Dreame X40 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 X40 Ultra
8.4/10$900
Last-gen flagship with class-leading mopping, now half its launch price.
Read full review 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 X40 UltraRoborock Qrevo CurvX
Overall
8.48.5
Hard Floor
9.29.0
Carpet
8.58.5
Mopping
9.48.7
Navigation
8.69.0
Noise
7.58.8
Smart Features
8.39.0
Maintenance
7.88.0
Specifications
| Dreame X40 Ultra | Spec | Roborock Qrevo CurvX |
|---|---|---|
| $900 | Price | $1300 |
| 12000 | Suction (Pa) | 22000 |
| 6400 | Battery (mAh) | 5200 |
| 65.0 | 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 X40 Ultra is more affordable at $900 vs $1300.