For budget buyers who want hot-water mop washing and an extending mop more than strong suction.
Amazon $329.99The Roborock Qrevo Pro and the Dreame L40s Ultra CE are evenly matched, rated 4.4 and 4.4. The Roborock Qrevo Pro costs $49.52 less ($329.99 vs $379.51).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
A cheaper L40s with a full self-cleaning dock, for homes that want hands-off mopping on a budget and can live without hot-water washing.
Amazon $379.51Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every self-cleaning dock robot vacuum; a clear win is highlighted. How we rank explains each one.
| Factor weight | Roborock Qrevo Pro | Dreame L40s Ultra CE |
|---|---|---|
| Overall rating | 4.4/5 | 4.4/5 |
| Cleaning 30% | 60 not yet tested; estimated from 25 tested Roborock robots and the median of the 80 tested robots | 70 measured 89% of sand from carpet, 68.2% of pet hair, no hair tangled |
| Value 25% | 100 $330 | 95 $380 |
| Dock 20% | 100 Self-empties the bin, washes the mop, hot-water mop wash, hot-air mop drying, doses detergent, optional water hookup | 83 Self-empties the bin, washes the mop, hot-air mop drying |
| Navigation 15% | 85 LiDAR + 3D light | 85 LiDAR + 3D light |
| Mopping 10% | 76 Dual spinning pads, lifts 10 mm, extends to edges | 76 Dual spinning pads, lifts 10.5 mm, extends to edges |
Independent tests
Roborock Qrevo Pro
No independent test published yet.
Dreame L40s Ultra CE
| Tested by | Carpet deep clean | Pet hair | Hair tangle (0 = none) | Area per charge | Conditions |
|---|---|---|---|---|---|
| Vacuum Wars | 89% | 68.2% | 0 | 1,478 sq ft | Embedded sand in medium-pile carpet; flattened 2.5 in pet hair on carpet; 7 in hair tangle on hard floor (0 = none wrapped). |
Specifications
| Roborock Qrevo Pro | Dreame L40s Ultra CE | |
|---|---|---|
| Vacuum | ||
| Claimed suction | 7,000 Pa | 13,000 Pa |
| Main brush | single all-rubber main brush | TriCut brush |
| Dustbin | 220 mL | 320 mL |
| Extending side brush | No | No |
| Mopping | ||
| Mop | Dual spinning pads, lifts 10 mm, extends to edges | Dual spinning pads, lifts 10.5 mm, extends to edges |
| Mop lift | 10 mm | 10.5 mm |
| Leaves mop at dock | No | No |
| Extending mop | Yes | Yes |
| Water tank | 80 mL | - |
| Dock | ||
| Dock | Washes mop + empties | Washes mop + empties |
| Self-empties | Yes | Yes |
| Dust bag | - | 3.2 L |
| Washes mop | Yes | Yes |
| Hot-water wash | Yes | No |
| Hot-air drying | Yes | Yes |
| Detergent dosing | Yes | No |
| Water hookup option | Yes | - |
| Clean water tank | - | 4.5 L |
| Navigation & app | ||
| Navigation | LiDAR + 3D light | LiDAR + 3D light |
| Obstacle avoidance | Structured light (Reactive Tech) | Single-laser 3D structured light |
| Climbs thresholds | 20 mm | 20 mm |
| Voice assistants | - | Alexa, Siri, Google Assistant |
| Build | ||
| Height | 3.8 in (97 mm) | 4.1 in (104 mm) |
| Retracting LiDAR | No | No |
| Battery | 5,200 mAh | 5,200 mAh |
| Run time | Up to 3 h | Up to 4 h 20 min |
| Weight | - | 8.6 lb (3.9 kg) |
| Warranty | - | 3 years |
| Released | 2024 | 2025-08 |
