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- Q8 Max+ vs S7 Max Ultra
Roborock Q8 Max+ vs Roborock S7 Max Ultra
What Q8 Max+ does better (4) and where S7 Max Ultra wins (2) — every spec side by side.
vs
5.0Cleaning power4.4
4.3Navigation4.3
5.2Mopping5.4
5.4Base station7.1
9.0Battery7.6
Dimensions
Size comparison
Q8 Max+S7 Max Ultra
| Q8 Max+ | S7 Max Ultra | Difference | |
|---|---|---|---|
| Height | 96 mm | 96 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 Q8 Max+ better than S7 Max Ultra?
- Runtime240 min vs 180 min+33%
- Water tank (robot)350 ml vs 200 ml+75%
- Dustbin (robot)470 ml vs 350 ml+34%
- Noise level67 dB vs 69 dB+3%
Why is S7 Max Ultra better than Q8 Max+?
- Mop typeMop pad vs Vibrating / sonic mop
- Base stationAuto-empty dock vs All-in-one dock (empty + wash)
Specifications
Side by side
| Suction & cleaning | ||
| Suction power | 5,500 Pa | 5,500 Pa |
| Dustbin (robot) | 470 ml | 350 ml |
| Main brush | Dual main brushes | Single main brush |
| Side brushes | 1 | 1 |
| Carpet detection | — | Yes |
| Noise level | 67 dB | 69 dB |
| Navigation & obstacles | ||
| Navigation | Laser (LiDAR) | Laser (LiDAR) |
| Navigation sensors | LiDAR laser (LDS), Cliff sensors | LiDAR laser (LDS), Ultrasonic sensor |
| Obstacle avoidance | Basic sensors (infrared / bumper) | Basic sensors (infrared / bumper) |
| No-go zones / virtual walls | Yes | Yes |
| Room mapping & room selection | Yes | Yes |
| Mopping | ||
| Mop type | Mop pad | Vibrating / sonic mop |
| Mop lifting on carpets | — | Yes |
| Mop lift height | — | 5 mm |
| Water tank (robot) | 350 ml | 200 ml |
| Base station | ||
| Base station | Auto-empty dock | All-in-one dock (empty + wash) |
| Auto-empty dust station | Yes | Yes |
| Dust bag (dock) | 2.5 l | 2.5 l |
| Mop washing in the dock | — | Yes |
| Hot-air mop drying | — | Yes |
| Automatic water refill | — | Yes |
| Clean water tank (dock) | — | 3 l |
| Dirty water tank (dock) | — | 2.5 l |
| Battery & runtime | ||
| Battery capacity | 5,200 mAh | 5,200 mAh |
| Runtime | 240 min | 180 min |
| Cleaning area per charge | 300 m² | 300 m² |
| Size & weight | ||
| Width / diameter | 350 mm | 353 mm |
| Length | 350 mm | 353 mm |
| Height | 96 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 |
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