Dreame X40 Ultra vs Dreame L40s Ultra AE
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Quick take: The Dreame X40 Ultra costs $70 less; the Dreame L40s Ultra AE has stronger suction (19,000 vs 12,000 Pa); the Dreame X40 Ultra runs longer per charge (210 vs 180 min).
| Spec | Dreame X40 Ultra | Dreame L40s Ultra AE |
|---|---|---|
| Price | ~$600 | ~$670 |
| Type | Robot Vacuum & Mop | Robot Vacuum & Mop |
| Suction | 12000 Pa | 19,000 Pa |
| Battery | 210 min | 180 min |
| Navigation | LiDAR + Camera | LiDAR + Camera |
| Filtration | — | — |
| Cordless | Yes | Yes |
| Bagged | — | — |
| Noise | 66 dB | — |
| Dustbin | 350 ml | 395 ml |
| Water tank | 300 ml | 4.5 L |
| Self-empty dock | Yes | Yes |
| Auto mop washing | Yes | Yes |
| Hot water washing | Yes | Yes |
| Obstacle avoidance | Yes | Yes |
| Carpet detection | Yes | Yes |
| Auto mop lifting | Yes | Yes |
| Multi-floor mapping | Yes | Yes |
| App control | Yes | Yes |
| Dimensions | 13.9 x 13.9 x 4.0 in | 13.78 x 13.78 x 3.82 in |
| Weight | 10.1 lbs | 8.8 lbs |
| Warranty | 1 year | 3 years |
Pros & cons
Dreame X40 Ultra
- ✓12000Pa suction is the strongest available — pulls embedded dirt from carpet fibers
- ✓Extending side brush reaches into corners and along walls other robots miss
- ✓Hot water mop wash with auto-detergent dispensing is truly hands-free
- ✓MopExtend technology pushes mop pads beyond the robot body for edge mopping
- ✓210-minute battery comfortably covers 3000+ sq ft homes
- ✗App can be buggy with occasional disconnects and slow map loading
- ✗Extending brush mechanism is a moving part that could wear over time
- ✗Slightly taller profile (4 inches) may not fit under some furniture
- ✗Newer brand with less established US customer service compared to Roborock or iRobot
Dreame L40s Ultra AE
- ✓19,000Pa suction matches the pricier L40s Ultra
- ✓75°C hot-water mop washing plus hot-air pad drying at the dock
- ✓Auto solution adding and auto water tank refilling reduce manual dock topping-off
- ✓LiDAR + camera navigation with multi-floor mapping and app no-go zones
- ✓Self-empty base rated for roughly 100 days between bag changes
- ✗No 40mm double-step obstacle crossing or extending side brush the full L40s Ultra gets
- ✗No mop-pad removal, so it still mops with pads attached when going over rugs unless you set no-mop zones
- ✗395ml onboard dust box is small if the auto-empty dock is ever unavailable
- ✗Noise level isn't published by Dreame
- ✗Price sits close enough to the full L40s Ultra that the savings may not be worth the feature cuts