Best Robot Vacuums is reader-supported. When you buy through links on our site, we may earn a commission. Details.
We may earn a commission when you buy through links on this page. Learn more.
Dreame X40 Ultra vs eufy Omni S2
The eufy Omni S2 wins with a score of 8.6/10. Best for: Large hard-floor homes with sticky messes — the hot water mop is unmatched at this price..
Dreame X40 Ultra
8.4/10$900
Last-gen flagship with class-leading mopping, now half its launch price.
Read full review Winner
eufy Omni S2
8.6/10$1350
Eufy's most powerful flagship — 30,000Pa AeroTurbo, HydroJet 2.0 roller mop with 60°C hot water sterilization, and a 12-in-1 dock with built-in fragrance.
Score Comparison
Dreame X40 Ultraeufy Omni S2
Overall
8.48.6
Hard Floor
9.29.5
Carpet
8.58.0
Mopping
9.49.5
Navigation
8.69.0
Noise
7.57.5
Smart Features
8.39.2
Maintenance
7.88.5
Specifications
| Dreame X40 Ultra | Spec | eufy Omni S2 |
|---|---|---|
| $900 | Price | $1350 |
| 12000 | Suction (Pa) | 30000 |
| 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 eufy Omni S2 is the better choice with an overall score of 8.6/10 — best for large hard-floor homes with sticky messes — the hot water mop is unmatched at this price.. The Dreame X40 Ultra is more affordable at $900 vs $1350.