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Comparing 2 robot vacuums

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

Green is the best of these 2, also when they share the lead.

Lefant M3L × Best on 4 facts Roborock QV 35A × Best on 1 fact
Most important facts
Lowest price € 260bol.com best € 289Roborock (brand store)
Score not in our ranking 6.9
Customer rating – –
Tests – Just A Dad Approved Vacuum Wars
Suction power higher is better 12,000 Pa best 8,000 Pa
Runtime per charge longer is better 220 min best 180 min
Climbs thresholds up to higher is better – 20 mm
Robot height lower is better same on both 9.7 cm 9.7 cm
Mop lift on carpet higher is better 9 mm 10 mm best
Dust bag lasts longer is better up to 56 days best up to 30 days
Navigation same on both LiDAR turret LiDAR turret
Rank
Rank – rank 70 of 79 with an all-in-one station
Mopping
Mop type same on both spinning pads spinning pads
Automatic mop detach same on both no (assumed) no (assumed)
Washes the mop same on both yes yes
Hot-air drying same on both no (assumed) no
Station
Station same on both all-in-one station all-in-one station
Plumbing hookup same on both no (assumed) no (assumed)
Brush and obstacles
Anti-tangle brush same on both yes yes
Obstacle avoidance – 3D sensor (structured light)
Climbing system for high thresholds same on both no (assumed) no (assumed)
Noise and age
Noise while cleaning not judged – 65 dB
On the market since – January 2025
Suction and brushes
Extending side brush same on both no (assumed) no (assumed)
Carpet detection – detects carpet
Suitable for pet hair – yes
Mopping
Mop extends to the edges same on both no (assumed) no (assumed)
Mop refreshed while mopping same on both yes yes
Water tank in the robot – 72 ml
Dock
Empties the dust bin same on both yes yes
Bagless same on both no no
Dust bag capacity 3.2 l 4 l
Dries the mop same on both yes yes
Dispenses detergent yes no (assumed)
Clean water tank 2.5 l –
Navigation and obstacles
Multi-floor maps 3 –
No-go zones – zones in the app
Stair-edge sensors – yes
Robotic arm – no (assumed)
Robot
Robot diameter – 35.3 cm
Dust bin in the robot – 330 ml
Battery
Battery capacity same on both 5,200 mAh 5,200 mAh
Smart features and warranty
Voice assistants Alexa, Google Assistant Alexa, Google Assistant, Siri
Warranty 1 year 2 years
Wi-Fi band 2.4 and 5 GHz –
Matter – no (assumed)
Scheduled runs – yes
Home Assistant – 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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