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- S7 Max Ultra vs S8+
Roborock S7 Max Ultra vs Roborock S8+
What S7 Max Ultra does better (3) and where S8+ wins (3) — every spec side by side.
vs
4.4Cleaning power2.7
4.3Navigation4.3
5.4Mopping5.6
7.1Base station5.4
7.6Battery6.1
Dimensions
Size comparison
S7 Max UltraS8+
| S7 Max Ultra | S8+ | Difference | |
|---|---|---|---|
| Height | 96 mm | 97 mm | −1 mm |
| Width / diameter | 353 mm | 353 mm | = |
| Length | 353 mm | 353 mm | = |
Drawn to the same scale from the official dimensions (front and side).
Why is S7 Max Ultra better than S8+?
- Suction power5,500 Pa vs 2,500 Pa2.2×
- Base stationAll-in-one dock (empty + wash) vs Auto-empty dock
- Cleaning area per charge300 m² vs 200 m²+50%
Why is S8+ better than S7 Max Ultra?
- Water tank (robot)200 ml vs 300 ml+50%
- Dustbin (robot)350 ml vs 470 ml+34%
- Noise level69 dB vs 67 dB+3%
Specifications
Side by side
| Suction & cleaning | ||
| Suction power | 5,500 Pa | 2,500 Pa |
| Dustbin (robot) | 350 ml | 470 ml |
| Main brush | Single main brush | Single main brush |
| Side brushes | 1 | 1 |
| Carpet detection | Yes | Yes |
| Noise level | 69 dB | 67 dB |
| Navigation & obstacles | ||
| Navigation | Laser (LiDAR) | Laser (LiDAR) |
| Navigation sensors | LiDAR laser (LDS), Ultrasonic sensor | LiDAR laser (LDS), Cliff sensors, 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 | Vibrating / sonic mop | Vibrating / sonic mop |
| Mop lifting on carpets | Yes | Yes |
| Mop lift height | 5 mm | 5 mm |
| Water tank (robot) | 200 ml | 300 ml |
| Base station | ||
| Base station | All-in-one dock (empty + wash) | Auto-empty dock |
| Auto-empty dust station | Yes | Yes |
| Dust bag (dock) | 2.5 l | 2.5 l |
| Mop washing in the dock | Yes | 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 | 180 min | 180 min |
| Charging time | — | 360 min |
| Cleaning area per charge | 300 m² | 200 m² |
| Size & weight | ||
| Width / diameter | 353 mm | 353 mm |
| Length | 353 mm | 353 mm |
| Height | 96 mm | 97 mm |
| Weight | — | 4.7 kg |
| 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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