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Comparing 3 robot vacuums

Your shortlist side by side: today’s price, our score and every fact the maker states.

Green is the best of these 3, also when they share the lead.

Xiaomi Robot Vacuum S20+ × Best on 1 fact Roborock Q7 L5 × Best on 3 facts Roborock S8 × Best on 3 facts
Most important facts
Lowest price – 111 €Roborock (brand store) –
Score not in our ranking 4.9 not in our ranking
Customer rating – – ★ 4.9 · 17 reviews
Tests – Vacuum Wars –
Suction power higher is better 6,000 Pa 8,000 Pa best 6,000 Pa
Runtime per charge longer is better 170 min 180 min best 180 min best
Climbs thresholds up to higher is better same on all 20 mm 20 mm 20 mm
Robot height lower is better 9.7 cm 9.9 cm 9.7 cm best
Mop lift on carpet higher is better 7 mm best no 5 mm
Navigation same on all LiDAR turret LiDAR turret LiDAR turret
Rank
Rank – rank 3 of 5 without a station –
Mopping
Mop type spinning pads flat or vibrating pad flat or vibrating pad
Automatic mop detach no (assumed) no (assumed) –
Washes the mop – no –
Hot-air drying – no –
Station
Station same on all charging dock only charging dock only charging dock only
Plumbing hookup – no –
Brush and obstacles
Anti-tangle brush no (assumed) yes (best) yes (best)
Obstacle avoidance – – 3D sensor (structured light)
Climbing system for high thresholds no (assumed) no (assumed) –
Noise and age
Noise while cleaning not judged 65 dB – 68.5 dB
On the market since August 2024 January 2025 March 2023
Suction and brushes
Extending side brush no (assumed) no (assumed) –
Carpet detection detects carpet and boosts suction – –
Suitable for pet hair – no –
Mopping
Mop extends to the edges no (assumed) no (assumed) –
Mop refreshed while mopping – no (assumed) –
Water tank in the robot – 270 ml 300 ml
Dock
Empties the dust bin – no –
Dries the mop – no –
Dispenses detergent – no –
Navigation and obstacles
Stair-edge sensors – yes –
Robot
Robot diameter 35 cm 32.5 cm 35.3 cm
Robot weight 3.8 kg 3.3 kg –
Dust bin in the robot – 400 ml 400 ml
Battery
Battery capacity 5,200 mAh 3,200 mAh 5,200 mAh
Charging time – 4 h –
Smart features and warranty
Voice assistants Alexa, Google Assistant Alexa, Google Assistant –
Matter – no (assumed) –
Warranty – 2 years –
Scheduled runs – yes –
Home Assistant – official integration official integration

Facts as the maker states them. A dash means the maker does not name it. Each model’s page gives the source of every fact. Noise is the maker’s own figure, so we do not judge it, and a customer rating only counts from 20 reviews.

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