One of the cheapest fully featured dock robots, with Matter and hot-water washing; best for hard floors, since carpet deep cleaning trails pricier models.
Amazon $449.99
For buyers who want an AI camera for obstacle avoidance and remote viewing on a full self-cleaning dock; for carpet and pet hair, the plain L40s Ultra measured better.
- Washes mop + emptiesDock
- 85% measuredCarpet pickup
- LiDAR + cameraNavigation
- Dual spinning padsMop
- 3.8 inHeight
- 3 hRun time
Price checked October 26, 2026. As an Amazon Associate we earn from qualifying purchases.
- Covered about 1,590 sq ft per charge in Vacuum Wars’ test
- No hair wrapped on the brushes in the tangle test
- Its camera recognises 120+ objects and doubles as a home camera with video calls
- Washes mops in hot water and dries them with hot air
- Lifted 85% of sand and 80.75% of pet hair, behind the cheaper L40s Ultra
- Costs about $100 more than the L40s Ultra, which measured better on carpet and pet hair
- Dreame’s figures for the wash temperature disagree (167°F vs 149°F)
The Dreame L40s Ultra family
Every Dreame L40s Ultra model we rank, smallest first. Ratings compare each against its own type.
| Model | Dock | Rating | Price |
|---|---|---|---|
| Dreame L40s Ultra | Washes mop + empties | 4.6/5 | $499.97 |
| Dreame L40s Ultra AE (this one) | Washes mop + empties | 4.3/5 | $599.98 |
How it scores
The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its type. How we rank explains each one.
Independent tests
What independent testers measured, on their own test floors with their own units. Carpet deep clean and pet hair are the share of debris lifted; these feed the Cleaning score.
| Tested by | Carpet deep clean | Pet hair | Hair tangle (0 = none) | Area per charge | Conditions |
|---|---|---|---|---|---|
| Vacuum Wars | 85% | 80.8% | 0 | 1,591 sq ft | Embedded sand in medium-pile carpet; flattened 2.5 in pet hair on carpet, two runs; 7 in hair tangle on hard floor (0 = none wrapped). |
Specifications
| Vacuum | |
|---|---|
| Claimed suction | 19,000 Pa |
| Main brush | Liftable rubber brush with TriCut hair-cutting |
| Dustbin | 395 mL |
| Extending side brush | No |
| Mopping | |
| Mop | Dual spinning pads, lifts 10.5 mm, extends to edges |
| Mop lift | 10.5 mm |
| Leaves mop at dock | No |
| Extending mop | Yes |
| Dock | |
| Dock | Washes mop + empties |
| Self-empties | Yes |
| Dust bag | 3.2 L |
| Washes mop | Yes |
| Hot-water wash | Yes |
| Hot-air drying | Yes |
| Detergent dosing | Yes |
| Clean water tank | 4.5 L |
| Navigation & app | |
| Navigation | LiDAR + camera |
| Obstacle avoidance | AI camera, recognises 120+ object types |
| Climbs thresholds | 20 mm |
| Voice assistants | Alexa, Google Assistant |
| Build | |
| Height | 3.8 in (97 mm) |
| Battery | 5,200 mAh |
| Run time | Up to 3 h |
| Weight | 8.8 lb (4 kg) |
| Warranty | 3 years |
| Released | 2025-08 |
Alternatives in this type
A well-priced roller-mop robot that cleans carpet nearly as well as flagships. Good for most homes without tall thresholds.
Amazon $599.98A strong-cleaning bagless roller-mop robot from ECOVACS’ sister brand; good results in testing, but yeedi publishes few specs and sells it only on Amazon.
Amazon $799.99Compare
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