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Dreame X40 Ultra vs Roborock Qrevo Edge
The Dreame X40 Ultra wins with a score of 8.4/10. Best for: Mid-to-large hard-floor homes wanting flagship mopping at a discount.
Winner
Dreame X40 Ultra
8.4/10$900
Last-gen flagship with class-leading mopping, now half its launch price.
Read full review
Roborock Qrevo Edge
8.3/10$1000
A near-flagship Roborock that nails pet hair and hot-water mop washing, but obstacle avoidance still trails the best.
Read full reviewScore Comparison
Dreame X40 UltraRoborock Qrevo Edge
Overall
8.48.3
Hard Floor
9.28.6
Carpet
8.58.5
Mopping
9.47.5
Navigation
8.68.4
Noise
7.58.8
Smart Features
8.38.6
Maintenance
7.88.4
Specifications
| Dreame X40 Ultra | Spec | Roborock Qrevo Edge |
|---|---|---|
| $900 | Price | $1000 |
| 12000 | Suction (Pa) | 18500 |
| 6400 | Battery (mAh) | 6400 |
| 65.0 | Noise (dB) | 55.0 |
| — | Dustbin (ml) | — |
| — | Water Tank (ml) | — |
| — | Mop Lift (mm) | — |
| — | Height (mm) | — |
| — | Weight (kg) | — |
| LiDAR + 3D Structured Light | Navigation | PreciSense LiDAR + structured light + RGB camera |
| ✅ | Self-Empty | ❌ |
| ✅ | Self-Wash Mop | ❌ |
| ✅ | Self-Dry Mop | ❌ |
| ✅ | AI Obstacle | ❌ |
Pros & Cons
Dreame X40 Ultra
Roborock Qrevo Edge
Pros
- + 18,500Pa suction with 0% hair tangling on DuoDivide brush
- + FlexiArm extending side brush reaches room edges and corners
- + Dock 3.0 with 167°F hot water mop washing and warm air drying
- + AdaptLift chassis clears thresholds up to 40mm
- + Excellent battery efficiency (1,677 sqft per charge)
Cons
- − Obstacle avoidance only 66% success rate (misses cables and power strips)
- − Mopping misses about 1 inch along skirting boards
- − Struggles with wet spills — can spread them
- − No auto detergent dispensing
- − Carpet pet hair pickup 80% — slightly below Qrevo Curv
The Verdict
The Dreame X40 Ultra is the better choice with an overall score of 8.4/10 — best for mid-to-large hard-floor homes wanting flagship mopping at a discount. The Dreame X40 Ultra is more affordable at $900 vs $1000.