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 4.4. The Dreame L40s Ultra leads on cleaning and mopping.
Narwal Freo Z10
A lot of robot for about $500: strong carpet cleaning, long range and a hot-water mop-washing dock. Good for privacy-minded buyers who don’t need camera-based avoidance.
Amazon $499.99$499.99
Prices were last checked October 27, 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 cleaning (measured 92% of sand from carpet, 91% of pet hair, no hair tangled vs measured 87% of sand from carpet, 92.5% of pet hair, no hair tangled) and mopping (Dual spinning pads, leaves its mop at the dock for carpet, extends to edges vs Dual spinning pads, lifts 12 mm, extends to edges).
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 | Narwal Freo Z10 |
|---|---|---|
| Overall rating | 4.6/5 | 4.4/5 |
| Cleaning 30% | 88 measured 92% of sand from carpet, 91% of pet hair, no hair tangled | 77 measured 87% of sand from carpet, 92.5% 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 | 100 Self-empties the bin, washes the mop, hot-water mop wash, hot-air mop drying, doses detergent, optional water hookup |
| 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 | 78 Dual spinning pads, lifts 12 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). |
Narwal Freo Z10
| Tested by | Carpet deep clean | Pet hair | Hair tangle (0 = none) | Area per charge | Conditions |
|---|---|---|---|---|---|
| Vacuum Wars | 87% | 92.5% | 0 | 1,679 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 | Narwal Freo Z10 | |
|---|---|---|
| Vacuum | ||
| Claimed suction | 19,000 Pa | 15,000 Pa |
| Main brush | HyperStream Detangling DuoBrush (bristled rubber brush plus TPU rubber brush) | Roller brush (DualFlow tangle-free system) |
| Dustbin | 310 mL | - |
| Extending side brush | Yes | - |
| Mopping | ||
| Mop | Dual spinning pads, leaves its mop at the dock for carpet, extends to edges | Dual spinning pads, lifts 12 mm, extends to edges |
| Mop lift | 10.5 mm | 12 mm |
| Leaves mop at dock | Yes | No |
| Extending mop | Yes | Yes |
| Dock | ||
| Dock | Washes mop + empties | Washes mop + empties |
| Self-empties | Yes | Yes |
| Dust bag | 3.2 L | 2.5 L |
| Washes mop | Yes | Yes |
| Hot-water wash | Yes | Yes |
| Hot-air drying | Yes | Yes |
| Detergent dosing | Yes | Yes |
| Water hookup option | - | Yes |
| Clean water tank | 4.5 L | - |
| Navigation & app | ||
| Navigation | LiDAR + 3D light | LiDAR + 3D light |
| Obstacle avoidance | 3DAdapt structured-light obstacle avoidance | Tri-laser structured light, 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) | 4.2 in (107.7 mm) |
| Battery | 5,200 mAh | 5,000 mAh |
| Run time | Up to 3 h 40 min | - |
| Weight | 9 lb (4.1 kg) | 10.1 lb (4.6 kg) |
| Warranty | 3 years | 1 year |
| Released | 2025-08 | 2025-04 |