Dreame L40s Ultra vs Dreame L40 Ultra Gen 2
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Quick take: The Dreame L40 Ultra Gen 2 has stronger suction (25,000 vs 19,000 Pa); the Dreame L40 Ultra Gen 2 runs longer per charge (231 vs 220 min).
| Spec | Dreame L40s Ultra | Dreame L40 Ultra Gen 2 |
|---|---|---|
| Price | ~$570 | ~$570 |
| Type | Robot Vacuum & Mop | Robot Vacuum & Mop |
| Suction | 19000 Pa | 25000 Pa |
| Battery | 220 min | 231 min |
| Navigation | LiDAR + Camera | LiDAR |
| Filtration | — | — |
| Cordless | Yes | Yes |
| Bagged | — | — |
| Noise | 66 dB | — |
| Dustbin | 310 ml | 250 ml |
| Water tank | 300 ml | — |
| Self-empty dock | Yes | Yes |
| Auto mop washing | Yes | Yes |
| Hot water washing | Yes | Yes |
| Obstacle avoidance | Yes | Yes |
| Carpet detection | Yes | No |
| Auto mop lifting | Yes | Yes |
| Multi-floor mapping | Yes | No |
| App control | Yes | Yes |
| Dimensions | 13.78 x 13.78 x 3.82 in | 13.78 x 13.78 x 3.82 in |
| Weight | 9.04 lbs | 8.58 lbs |
| Warranty | 3 years | 3 years |
Pros & cons
Dreame L40s Ultra
- ✓Flagship-grade 19000Pa suction and hot water mop washing at a mid-range price
- ✓81% positive owner sentiment — praised for obstacle avoidance and pet hair
- ✓DuoBrush design shrugs off long hair that kills single-roller robots
- ✓MopExtend reaches baseboards and into corners most round robots miss
- ✓260-minute battery covers large homes in a single run
- ✗Carpet performance is good but not class-leading — fine dust stays in thick pile
- ✗Dock takes up serious floor space and the water tanks need weekly attention
- ✗Dreame app notifications are chatty out of the box
- ✗Frequent sale-price swings make it easy to overpay — wait for the $600s
Dreame L40 Ultra Gen 2
- ✓Full self-empty, hot-water wash dock for $569.99
- ✓231-minute lab runtime
- ✓25,000 Pa suction
- ✓Mops lift 10.5 mm
- ✓3-year warranty, same as Dreame's flagships
- ✗No AI camera or object recognition
- ✗Climbs only 0.79 in
- ✗Wash water temperature and noise level are not published