Dreame L40s Ultra CE
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 $379.51 Dreame $469.99$379.51
The Dreame L40s Ultra CE is the better robot vacuum overall, rated 4.4 to 4.3. The Dreame L40s Ultra CE leads on cleaning. The Ecovacs Deebot N30 Omni costs $19.05 less ($360.46 vs $379.51).
Prices were last checked November 11, 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.
Ecovacs Deebot N30 Omni
A budget all-in-one dock robot for hard-floor homes with pets; its carpet deep cleaning is weak and ECOVACS publishes few US specs.
Amazon $360.46$360.46
Which should you buy?
- Choose the Dreame L40s Ultra CE for cleaning (measured 89% of sand from carpet, 68.2% of pet hair, no hair tangled vs measured 77% of sand from carpet, 97% of pet hair, no hair tangled).
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 CE | Ecovacs Deebot N30 Omni |
|---|---|---|
| Overall rating | 4.4/5 | 4.3/5 |
| Cleaning 30% | 70 measured 89% of sand from carpet, 68.2% of pet hair, no hair tangled | 55 measured 77% of sand from carpet, 97% of pet hair, no hair tangled |
| Value 25% | 95 $380 | 98 $360 |
| Dock 20% | 83 Self-empties the bin, washes the mop, hot-air mop drying | 94 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 10.5 mm, extends to edges | 71 Dual spinning pads, extends to edges |
Independent tests
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). |
Ecovacs Deebot N30 Omni
| Tested by | Carpet deep clean | Pet hair | Hair tangle (0 = none) | Area per charge | Conditions |
|---|---|---|---|---|---|
| Vacuum Wars | 77% | 97% | 0 | - | 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
| Dreame L40s Ultra CE | Ecovacs Deebot N30 Omni | |
|---|---|---|
| Vacuum | ||
| Claimed suction | 13,000 Pa | 10,000 Pa |
| Main brush | TriCut brush | single anti-tangle brush (ZeroTangle) |
| Dustbin | 320 mL | - |
| Extending side brush | No | - |
| Mopping | ||
| Mop | Dual spinning pads, lifts 10.5 mm, extends to edges | Dual spinning pads, extends to edges |
| Mop lift | 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 | 2.6 L |
| Washes mop | Yes | Yes |
| Hot-water wash | No | - |
| Hot-air drying | Yes | Yes |
| Detergent dosing | No | No |
| Clean water tank | 4.5 L | - |
| Navigation & app | ||
| Navigation | LiDAR + 3D light | LiDAR + 3D light |
| Obstacle avoidance | Single-laser 3D structured light | 3D structured light (TrueDetect 3D 3.0) |
| Climbs thresholds | 20 mm | 20 mm |
| Voice assistants | Alexa, Siri, Google Assistant | Alexa, Google Assistant |
| Build | ||
| Height | 4.1 in (104 mm) | - |
| Retracting LiDAR | No | No |
| Battery | 5,200 mAh | 5,200 mAh |
| Run time | Up to 4 h 20 min | Up to 5 h 20 min |
| Weight | 8.6 lb (3.9 kg) | - |
| Warranty | 3 years | 1 year |
| Released | 2025-08 | 2024-09 |