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 4.3. The Dreame L40s Ultra leads on mopping.
Eufy Omni C28
A strong mid-price roller-mop robot for pet homes that would rather not have a camera. Tidy up cables first, since it only avoids larger objects.
Amazon $499.98$499.98
Prices were last checked November 2, 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 mopping (Dual spinning pads, leaves its mop at the dock for carpet, extends to edges vs Roller, lifts 10.8 mm).
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 | Eufy Omni C28 |
|---|---|---|
| Overall rating | 4.6/5 | 4.3/5 |
| Cleaning 30% | 88 measured 92% of sand from carpet, 91% of pet hair, no hair tangled | 86 measured 89% of sand from carpet, 100% of pet hair, no hair tangled |
| Value 25% | 78 $500 | 78 $500 |
| Dock 20% | 100 Self-empties the bin, washes the mop, hot-water mop wash, hot-air mop drying, doses detergent | 79 Self-empties the bin, washes the mop, hot-air mop drying |
| Navigation 15% | 85 LiDAR + 3D light | 85 LiDAR + 3D light |
| Mopping 10% | 86 Dual spinning pads, leaves its mop at the dock for carpet, extends to edges | 76 Roller, lifts 10.8 mm |
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). |
Eufy Omni C28
| Tested by | Carpet deep clean | Pet hair | Hair tangle (0 = none) | Area per charge | Conditions |
|---|---|---|---|---|---|
| Vacuum Wars | 89% | 100% | 0 | 1,192 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 | Eufy Omni C28 | |
|---|---|---|
| Vacuum | ||
| Claimed suction | 19,000 Pa | 15,000 Pa |
| Main brush | HyperStream Detangling DuoBrush (bristled rubber brush plus TPU rubber brush) | DuoSpiral anti-tangle brushes |
| 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 10.8 mm |
| Mop lift | 10.5 mm | 10.8 mm |
| Leaves mop at dock | Yes | No |
| Extending mop | Yes | No |
| Water tank | - | 120 mL |
| Dock | ||
| Dock | Washes mop + empties | Washes mop + empties |
| Self-empties | Yes | Yes |
| Dust bag | 3.2 L | 3 L |
| Washes mop | Yes | Yes |
| Hot-water wash | Yes | No |
| Hot-air drying | Yes | Yes |
| Detergent dosing | Yes | - |
| Water hookup option | - | No |
| Clean water tank | 4.5 L | 2.2 L |
| Navigation & app | ||
| Navigation | LiDAR + 3D light | LiDAR + 3D light |
| Obstacle avoidance | 3DAdapt structured-light obstacle avoidance | Laser line, avoids objects 3 cm and taller (no camera) |
| Climbs thresholds | 40 mm | 20 mm |
| Matter | - | No |
| Voice assistants | Alexa, Google Assistant | Alexa, Google Assistant, Siri |
| Build | ||
| Height | 3.8 in (97 mm) | 4.4 in (110.6 mm) |
| Retracting LiDAR | - | No |
| Battery | 5,200 mAh | 5,200 mAh |
| Run time | Up to 3 h 40 min | Up to 4 h 11 min |
| Weight | 9 lb (4.1 kg) | 11 lb (5 kg) |
| Warranty | 3 years | 1 year |
| Released | 2025-08 | 2026-02 |