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- Spot+Scrub AI vs S8 Pro Ultra
Dyson Spot+Scrub AI vs Roborock S8 Pro Ultra
What Spot+Scrub AI does better (5) and where S8 Pro Ultra wins (2) — every spec side by side.
vs
8.5Cleaning power3.4
8.2Navigation6.8
9.2Mopping5.4
4.9Base station9.0
7.6Battery6.4
Dimensions
Size comparison
Spot+Scrub AIS8 Pro Ultra
| Spot+Scrub AI | S8 Pro Ultra | Difference | |
|---|---|---|---|
| Height | 110 mm | 96 mm | +14 mm |
| Width / diameter | 373 mm | 350 mm | +23 mm |
| Length | 373 mm | 350 mm | +23 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is Spot+Scrub AI better than S8 Pro Ultra?
- Suction power18,000 Pa vs 4,000 Pa4.5×
- Obstacle avoidanceAI camera vs Basic sensors (infrared / bumper)
- Mop typeRoller mop vs Vibrating / sonic mop
- Runtime200 min vs 180 min+11%
- Charging time180 min vs 360 min2×
Why is S8 Pro Ultra better than Spot+Scrub AI?
- Height110 mm vs 96 mm+15%
- Battery capacity5,000 mAh vs 5,200 mAh+4%
Specifications
Side by side
| Suction & cleaning | ||
| Suction power | 18,000 Pa | 4,000 Pa |
| Dustbin (robot) | — | 350 ml |
| Main brush | Single main brush | Dual main brushes |
| Anti-tangle brush | Yes | — |
| Side brushes | 2 | 1 |
| Carpet detection | Yes | Yes |
| Noise level | — | 67 dB |
| Navigation & obstacles | ||
| Navigation | Laser (LiDAR) | Laser (LiDAR) |
| Navigation sensors | LiDAR laser (LDS), Cliff sensors, Ultrasonic sensor | LiDAR laser (LDS) |
| 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 | Roller mop | Vibrating / sonic mop |
| Mop lifting on carpets | Yes | Yes |
| Mop lift height | — | 5 mm |
| Extending mop (edges) | Yes | — |
| Water tank (robot) | — | 200 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 l | — |
| Mop washing in the dock | Yes | Yes |
| Hot-water mop washing | Yes | — |
| Hot-air mop drying | Yes | Yes |
| Automatic water refill | Yes | Yes |
| Clean water tank (dock) | 2.3 l | — |
| Dirty water tank (dock) | 2.3 l | — |
| Battery & runtime | ||
| Battery capacity | 5,000 mAh | 5,200 mAh |
| Runtime | 200 min | 180 min |
| Charging time | 180 min | 360 min |
| Cleaning area per charge | — | 300 m² |
| Recharge & resume | — | Yes |
| Size & weight | ||
| Width / diameter | 373 mm | 350 mm |
| Length | 373 mm | 350 mm |
| Height | 110 mm | 96 mm |
| Shape | Round | Round |
| Colours | Black, Blue | Black |
| App & smart home | ||
| App control | Yes | Yes |
| Voice assistants | Amazon Alexa, Google Assistant, Apple Siri | Amazon Alexa, Google Assistant, Apple Siri |
| Remote control | — | Yes |
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