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- L40 Ultra vs Q8 Max
Dreame L40 Ultra vs Roborock Q8 Max
What L40 Ultra does better (4) and where Q8 Max wins (5) — every spec side by side.
Dimensions
Size comparison
L40 UltraQ8 Max
| L40 Ultra | Q8 Max | Difference | |
|---|---|---|---|
| Height | 104 mm | 96 mm | +8 mm |
| Width / diameter | 350 mm | 350 mm | = |
| Length | 350 mm | 350 mm | = |
Drawn to the same scale from the official dimensions (front and side).
Why is L40 Ultra better than Q8 Max?
- Suction power11,000 Pa vs 5,500 Pa2×
- Obstacle avoidanceAI camera vs Basic sensors (infrared / bumper)
- Mop typeRotating mop pads vs Mop pad
- Base stationAll-in-one dock (empty + wash) vs Charging dock
Why is Q8 Max better than L40 Ultra?
- Runtime194 min vs 240 min+24%
- Water tank (robot)80 ml vs 350 ml4.4×
- Height104 mm vs 96 mm+8%
- Dustbin (robot)300 ml vs 470 ml+57%
- Noise level74 dB vs 67 dB+10%
Specifications
Side by side
| Suction & cleaning | ||
| Suction power | 11,000 Pa | 5,500 Pa |
| Dustbin (robot) | 300 ml | 470 ml |
| Main brush | Single main brush | Dual main brushes |
| Side brushes | 1 | 1 |
| Carpet detection | Yes | — |
| Dirt detection | Yes | — |
| Noise level | 74 dB | 67 dB |
| Navigation & obstacles | ||
| Navigation | Laser (LiDAR) | Laser (LiDAR) |
| Navigation sensors | LiDAR laser (LDS), Wall sensor, Cliff sensors | LiDAR laser (LDS), Cliff sensors |
| Obstacle avoidance | AI camera | Basic sensors (infrared / bumper) |
| Threshold climbing | 22 mm | — |
| No-go zones / virtual walls | Yes | Yes |
| Room mapping & room selection | Yes | Yes |
| Mopping | ||
| Mop type | Rotating mop pads | Mop pad |
| Mop lifting on carpets | Yes | — |
| Mop lift height | 10.5 mm | — |
| Automatic mop removal | Yes | — |
| Extending mop (edges) | Yes | — |
| Water tank (robot) | 80 ml | 350 ml |
| Base station | ||
| Base station | All-in-one dock (empty + wash) | Charging dock |
| Auto-empty dust station | Yes | — |
| Dust bag (dock) | 3.2 l | — |
| Mop washing in the dock | Yes | — |
| Hot-water mop washing | Yes | — |
| Hot-air mop drying | Yes | — |
| Automatic water refill | Yes | — |
| Plumbed water connection | Yes | — |
| Battery & runtime | ||
| Battery capacity | 5,200 mAh | 5,200 mAh |
| Runtime | 194 min | 240 min |
| Charging time | 210 min | — |
| Cleaning area per charge | — | 300 m² |
| Recharge & resume | Yes | — |
| Size & weight | ||
| Width / diameter | 350 mm | 350 mm |
| Length | 350 mm | 350 mm |
| Height | 104 mm | 96 mm |
| Shape | Round | Round |
| Colours | White | White |
| 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 | — |
