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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 M3 × Best on 3 facts MOVA E40 Ultra × Best on 5 facts
Most important facts
Lowest price € 271 *Amazon.de best € 309Amazon.nl
Score not in our ranking 6.7
Customer rating – ★ 4.3 · 24 reviews
Tests – Just A Dad Approved
Suction power higher is better 12,000 Pa 19,000 Pa best
Runtime per charge longer is better 220 min 260 min best
Climbs thresholds up to higher is better 15 mm 22 mm best
Robot height lower is better same on both 9.7 cm 9.7 cm
Mop lift on carpet higher is better 9 mm 10.5 mm best
Dust bag lasts longer is better up to 90 days best up to 75 days
Navigation same on both LiDAR turret LiDAR turret
Rank
Rank – rank 66 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 no (assumed) yes (best)
Station
Station same on both all-in-one station all-in-one station
Plumbing hookup same on both no (assumed) no
Brush and obstacles
Anti-tangle brush yes (best) no
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 – 61 dB
On the market since December 2025 June 2025
Suction and brushes
Suitable for pet hair yes no
Extending side brush – no (assumed)
Carpet detection – detects carpet
Dirt detection – yes
Mopping
Mop extends to the edges – yes
Mop refreshed while mopping – no (assumed)
Water tank in the robot – 80 ml
Steam – no (assumed)
Dock
Empties the dust bin same on both yes yes
Bagless same on both no no
Dust bag capacity same on both 3.2 l 3.2 l
Wash temperature 45 °C cold water
Dries the mop same on both yes yes
Dispenses detergent same on both yes yes
Clean water tank – 4.5 l
Dirty water tank – 4 l
Navigation and obstacles
No-go zones – zones in the app
Robotic arm – no (assumed)
Robot
Robot diameter 32 cm 35 cm
Robot weight – 4 kg
Dust bin in the robot – 300 ml
Battery
Battery capacity same on both 5,200 mAh 5,200 mAh
Area per charge – 220 m²
Smart features and warranty
Voice assistants Google Assistant Alexa
Wi-Fi band 2.4 and 5 GHz –
Matter – no (assumed)
Warranty – 3 years

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. * Foreign shop: delivery cost and VAT to the Netherlands estimated.

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