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Dreame X40 Ultra vs Roborock Saros 20
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 reviewScore Comparison
Dreame X40 UltraRoborock Saros 20
Overall
8.4—
Hard Floor
9.2—
Carpet
8.5—
Mopping
9.4—
Navigation
8.6—
Noise
7.5—
Smart Features
8.3—
Maintenance
7.8—
Specifications
| Dreame X40 Ultra | Spec | Roborock Saros 20 |
|---|---|---|
| $900 | Price | $1390 |
| 12000 | Suction (Pa) | 35000 |
| 6400 | Battery (mAh) | — |
| 65.0 | Noise (dB) | — |
| — | Dustbin (ml) | — |
| — | Water Tank (ml) | — |
| — | Mop Lift (mm) | — |
| — | Height (mm) | — |
| — | Weight (kg) | — |
| LiDAR + 3D Structured Light | Navigation | LiDAR + 3D ToF |
| ✅ | Self-Empty | ✅ |
| ✅ | Self-Wash Mop | ✅ |
| ✅ | Self-Dry Mop | ✅ |
| ✅ | AI Obstacle | ✅ |
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 $1390.