Roborock S8 Pro Ultra vs Dreame L20 Ultra
Quick take: The Dreame L20 Ultra has stronger suction (7,000 vs 6,000 Pa); the Dreame L20 Ultra runs longer per charge (210 vs 180 min).
| Spec | Roborock S8 Pro Ultra | Dreame L20 Ultra |
|---|---|---|
| Price | $1,200 | $1,200 |
| Rating | 4.6★ (4,500) | 4.5★ (2,100) |
| Type | Robot Vacuum & Mop | Robot Vacuum & Mop |
| Suction | 6000 Pa | 7000 Pa |
| Battery | 180 min | 210 min |
| Navigation | LiDAR | LiDAR + Camera |
| Noise | 67 dB | 66 dB |
| Dustbin | 400 ml | 350 ml |
| Water tank | 300 ml | 300 ml |
| Self-empty dock | Yes | Yes |
| Auto mop washing | Yes | Yes |
| Hot water washing | No | Yes |
| Obstacle avoidance | No | 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 3.8 in | 13.9 x 13.9 x 4.0 in |
| Weight | 9.1 lbs | 9.7 lbs |
| Warranty | 1 year | 1 year |
Pros & cons
Roborock S8 Pro Ultra
- ✓Dual rubber brush system excels at picking up pet hair without tangles
- ✓Self-washing dock eliminates the grossest part of robot mop ownership
- ✓Sonic mopping vibrates at 3000rpm for surprisingly effective floor cleaning
- ✓Excellent multi-floor mapping — remembers up to 4 floors reliably
- ✓Consistently strong Amazon ratings with thousands of verified reviews
- ✗No camera means it can bump into small obstacles like shoes or cables
- ✗6000Pa suction struggles with heavier debris on thick carpet
- ✗Dock does not use hot water, so mop pads can develop odor over time
- ✗VibraRise mop lift is only about 5mm, not enough for high-pile carpet
Dreame L20 Ultra
- ✓MopExtend feature cleans right up to baseboards where most robots leave a strip
- ✓Hot water mop washing at the dock keeps pads sanitary
- ✓Excellent obstacle avoidance — handles cluttered rooms with toys and cables
- ✓Long 210-minute battery handles large homes in one session
- ✓Mop lifts 10.5mm, one of the highest in the market
- ✗Suction power at 7000Pa is mid-range for the price
- ✗Dock is bulky and the water tanks need refilling every few cleans
- ✗Sometimes leaves streaks on very dark hardwood floors
- ✗App notifications can be overly chatty and annoying