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- L40 Ultra vs Qrevo Slim
Dreame L40 Ultra vs Roborock Qrevo Slim
What L40 Ultra does better (6) and where Qrevo Slim wins (2) — every spec side by side.
vs
6.7Cleaning power5.6
8.7Navigation8.6
6.9Mopping6.4
7.3Base station6.0
8.1Battery7.3
Dimensions
Size comparison
L40 UltraQrevo Slim
| L40 Ultra | Qrevo Slim | Difference | |
|---|---|---|---|
| Height | 104 mm | 82 mm | +22 mm |
| Width / diameter | 350 mm | 353 mm | −3 mm |
| Length | 350 mm | 353 mm | −3 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is L40 Ultra better than Qrevo Slim?
- Runtime194 min vs 180 min+8%
- Threshold climbing22 mm vs 20 mm+10%
- Mop lift height10.5 mm vs 10 mm+5%
- Dustbin (robot)300 ml vs 220 ml+36%
- Dust bag (dock)3.2 l vs 2.7 l+19%
- Charging time210 min vs 240 min+14%
Why is Qrevo Slim better than L40 Ultra?
- Obstacle avoidanceAI camera vs AI camera + 3D structured light
- Height104 mm vs 82 mm+27%
Specifications
Side by side
| Suction & cleaning | ||
| Suction power | 11,000 Pa | 11,000 Pa |
| Dustbin (robot) | 300 ml | 220 ml |
| Main brush | Single main brush | Dual main brushes |
| Side brushes | 1 | 1 |
| Extending side brush | — | Yes |
| Carpet detection | Yes | Yes |
| Dirt detection | Yes | Yes |
| UV disinfection | — | Yes |
| Noise level | — | 67 dB |
| Navigation & obstacles | ||
| Navigation | Laser (LiDAR) | Laser (LiDAR) |
| Navigation sensors | LiDAR laser (LDS), Wall sensor, Cliff sensors | LiDAR laser (LDS), dToF laser, Wall sensor, Cliff sensors |
| Obstacle avoidance | AI camera | AI camera + 3D structured light |
| Threshold climbing | 22 mm | 20 mm |
| No-go zones / virtual walls | Yes | Yes |
| Room mapping & room selection | Yes | Yes |
| Mopping | ||
| Mop type | Rotating mop pads | Rotating mop pads |
| Mop lifting on carpets | Yes | Yes |
| Mop lift height | 10.5 mm | 10 mm |
| Automatic mop removal | Yes | — |
| Extending mop (edges) | Yes | Yes |
| Water tank (robot) | 80 ml | 80 ml |
| Base station | ||
| Base station | All-in-one dock (empty + wash) | All-in-one dock (empty + wash) |
| Auto-empty dust station | Yes | Yes |
| Dust bag (dock) | 3.2 l | 2.7 l |
| Mop washing in the dock | Yes | Yes |
| Hot-water mop washing | Yes | Yes |
| Hot-air mop drying | Yes | Yes |
| Automatic water refill | Yes | Yes |
| Plumbed water connection | Yes | — |
| Clean water tank (dock) | — | 4 l |
| Dirty water tank (dock) | — | 3.5 l |
| Battery & runtime | ||
| Battery capacity | 5,200 mAh | 5,200 mAh |
| Runtime | 194 min | 180 min |
| Charging time | 210 min | 240 min |
| Size & weight | ||
| Width / diameter | 350 mm | 353 mm |
| Length | 350 mm | 353 mm |
| Height | 104 mm | 82 mm |
| Shape | Round | Round |
| Colours | White | Black |
| App & smart home | ||
| App control | Yes | Yes |
| Voice assistants | Amazon Alexa, Google Assistant, Apple Siri | Amazon Alexa, Google Assistant, Apple Siri |
| Live camera view / video call | Yes | Yes |
| Remote control | — | Yes |
