Dreame L40s Ultra AE
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.
Amazon $599.98$599.98
The Dreame L40s Ultra AE and the Dreame D30 Ultra CE are evenly matched, rated 4.3 and 4.3. The Dreame L40s Ultra AE leads on navigation.
Prices were last checked November 3, 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.
Dreame D30 Ultra CE
A lower-cost version of the D30 Ultra for hard-floor homes that want a washing dock on a budget.
Amazon $599.99$599.99
Which should you buy?
- Choose the Dreame L40s Ultra AE for navigation (LiDAR + camera vs LiDAR + 3D light).
Scores 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 | Dreame L40s Ultra AE | Dreame D30 Ultra CE |
|---|---|---|
| Overall rating | 4.3/5 | 4.3/5 |
| Cleaning 30% | 66 measured 85% of sand from carpet, 80.8% of pet hair, no hair tangled | 73 not yet tested; estimated from 12 tested Dreame robots and the median of the 70 tested robots |
| Value 25% | 67 $600 | 67 $600 |
| Dock 20% | 100 Self-empties the bin, washes the mop, hot-water mop wash, hot-air mop drying, doses detergent | 100 Self-empties the bin, washes the mop |
| Navigation 15% | 100 LiDAR + camera | 85 LiDAR + 3D light |
| Mopping 10% | 76 Dual spinning pads, lifts 10.5 mm, extends to edges | 76 Dual spinning pads, lifts 10.5 mm, extends to edges |
Independent tests
Dreame L40s Ultra AE
| 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). |
Dreame D30 Ultra CE
No independent test published yet.
Specifications
| Dreame L40s Ultra AE | Dreame D30 Ultra CE | |
|---|---|---|
| Vacuum | ||
| Claimed suction | 19,000 Pa | 25,000 Pa |
| Main brush | Liftable rubber brush with TriCut hair-cutting | Rubber brush (TriCut brush sold separately) |
| Dustbin | 395 mL | 300 mL |
| Extending side brush | No | - |
| Mopping | ||
| Mop | Dual spinning pads, lifts 10.5 mm, extends to edges | Dual spinning pads, lifts 10.5 mm, extends to edges |
| Mop lift | 10.5 mm | 10.5 mm |
| Leaves mop at dock | No | No |
| Extending mop | Yes | Yes |
| Dock | ||
| Dock | Washes mop + empties | Washes mop + empties |
| Self-empties | Yes | Yes |
| Dust bag | 3.2 L | 3.2 L |
| Washes mop | Yes | Yes |
| Hot-water wash | Yes | - |
| Hot-air drying | Yes | - |
| Detergent dosing | Yes | - |
| Clean water tank | 4.5 L | 4.5 L |
| Navigation & app | ||
| Navigation | LiDAR + camera | LiDAR + 3D light |
| Obstacle avoidance | AI camera, recognises 120+ object types | Line laser (3DAdapt) |
| Climbs thresholds | 20 mm | 20 mm |
| Voice assistants | Alexa, Google Assistant | Alexa, Siri, Google Assistant |
| Build | ||
| Height | 3.8 in (97 mm) | 3.8 in (97 mm) |
| Retracting LiDAR | - | No |
| Battery | 5,200 mAh | 5,200 mAh |
| Run time | Up to 3 h | Up to 3 h 50 min |
| Weight | 8.8 lb (4 kg) | 8.4 lb (3.8 kg) |
| Warranty | 3 years | 3 years |
| Released | 2025-08 | 2026-05 |