Dreame L40s Ultra
The value pick of Dreame’s range: strong measured carpet cleaning, long runtime and a full self-cleaning dock for about half the flagship price.
Amazon $499.97$499.97
The Dreame L40s Ultra is the better robot vacuum overall, rated 4.6 to 4.0. The Dreame L40s Ultra leads on value and cleaning. The Ecovacs Deebot X11 OmniCyclone wins on navigation. The Dreame L40s Ultra costs $600.02 less ($499.97 vs $1,099.99).
Ecovacs Deebot X11 OmniCyclone
A bagless, long-running roller-mop robot for large homes; the newer X12 OmniCyclone does much the same for less.
Amazon $1,099.99$1,099.99
Prices were last checked October 26, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Dreame L40s Ultra for value ($500 vs $1,100) and cleaning (measured 92% of sand from carpet, 91% of pet hair, no hair tangled vs measured 85% of sand from carpet, 100% of pet hair, no hair tangled).
- Choose the Ecovacs Deebot X11 OmniCyclone 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 | Ecovacs Deebot X11 OmniCyclone |
|---|---|---|
| Overall rating | 4.6/5 | 4.0/5 |
| Cleaning 30% | 88 measured 92% of sand from carpet, 91% of pet hair, no hair tangled | 76 measured 85% of sand from carpet, 100% of pet hair, no hair tangled |
| Value 25% | 78 $500 | 30 $1,100 |
| Dock 20% | 100 Self-empties the bin, washes the mop, hot-water mop wash, hot-air mop drying, doses detergent | 90 Self-empties the bin, washes the mop, hot-water mop wash, hot-air mop drying, doses detergent |
| Navigation 15% | 85 LiDAR + 3D light | 100 LiDAR + camera |
| Mopping 10% | 86 Dual spinning pads, leaves its mop at the dock for carpet, extends to edges | 90 Roller, lifts 10 mm, extends to edges |
Independent tests
Dreame L40s Ultra
| Tested by | Carpet deep clean | Pet hair | Hair tangle (0 = none) | Area per charge | Conditions |
|---|---|---|---|---|---|
| Vacuum Wars | 92% | 91% | 0 | 1,538 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). |
Ecovacs Deebot X11 OmniCyclone
| Tested by | Carpet deep clean | Pet hair | Hair tangle (0 = none) | Area per charge | Conditions |
|---|---|---|---|---|---|
| Vacuum Wars | 85% | 100% | 0 | 1,436 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
| Dreame L40s Ultra | Ecovacs Deebot X11 OmniCyclone | |
|---|---|---|
| Vacuum | ||
| Claimed suction | 19,000 Pa | 19,500 Pa |
| Main brush | HyperStream Detangling DuoBrush (bristled rubber brush plus TPU rubber brush) | single floating bristle brush (cyclone-directed, ZeroTangle 3.0) |
| Dustbin | 310 mL | 220 mL |
| Extending side brush | Yes | No |
| Mopping | ||
| Mop | Dual spinning pads, leaves its mop at the dock for carpet, extends to edges | Roller, lifts 10 mm, extends to edges |
| Mop lift | 10.5 mm | 10 mm |
| Leaves mop at dock | Yes | No |
| Extending mop | Yes | Yes |
| Water tank | - | 110 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 | Yes |
| Hot-air drying | Yes | Yes |
| Detergent dosing | Yes | Yes |
| Water hookup option | - | No |
| Clean water tank | 4.5 L | 3.2 L |
| Navigation & app | ||
| Navigation | LiDAR + 3D light | LiDAR + camera |
| Obstacle avoidance | 3DAdapt structured-light obstacle avoidance | RGB camera plus 3D depth sensing with AI object recognition (AIVI 3D 3.0) |
| Climbs thresholds | 40 mm | 24 mm |
| Voice assistants | Alexa, Google Assistant | YIKO |
| Build | ||
| Height | 3.8 in (97 mm) | 3.9 in (98 mm) |
| Retracting LiDAR | - | No |
| Battery | 5,200 mAh | 6,400 mAh |
| Run time | Up to 3 h 40 min | Up to 4 h 14 min |
| Weight | 9 lb (4.1 kg) | 11.7 lb (5.3 kg) |
| Warranty | 3 years | 1 year |
| Released | 2025-08 | 2025-09 |