Independent rankings
Window cleaning robots ranked on how well they clean, how hard they hold on to the glass and what they do when the power fails.
A window robot is the only home robot that works against gravity, so the questions are different. Does the glass come out streak-free? How hard does it hold on, and for how long after a power cut? Which panes does it fit, and does it find its own way round the handle? Ranked on the default weighting, with cleaning and safety carrying forty per cent between them.
10 / 17 models evaluated · Updated
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MOVA's light 8,000 Pa window robot: sprays from a 120 ml tank for 32 m², plans a Z or N route, talks you through the job in 15 languages and holds on for 30 minutes after a power cut.
The slim Winbot for narrow panes from 25 × 25 cm: 8,000 Pa, felt brushes at all four corners, ultrasonic mist from a 50 ml tank for 30 m², WIN-SLAM 4.0 and 30 minutes of grip after a power cut.
The 10,000 Pa Winbot with the biggest tank: TruEdge 2.0 cleaning flush to the frame, 120 ml for 75 m² a fill, four-stage noise reduction to 66 dB and a battery station for 110 minutes off the mains.
Dreame's C1 with an 8,000 Pa motor and a portable battery station: corner brushes, 14 cm/s with resume and return to start, a 140 kg-rated cable, 63 dB, panes to 2.5 × 4 m, on glass, marble or tiles.
The Winbot with a corner scrubber: 8,000 Pa, a TruEdge brush that drops into the corners at 200 rpm, an 80 ml tank for 50 m² and a 5.2 kg battery station for 110 minutes off the mains.
Ecovacs' 2026 flagship: 10,000 Pa, a TruEdge corner scrubber, six nozzles on an 80 ml tank for 50 m², 16 cm/s, and a 10 kg station that washes the pads itself and runs 130 minutes off the mains.
MOVA's first window robot with a base station: 10,000 Pa, panes to 2.5 × 8 m, rated for 90 m² of wet cleaning, an 80 ml tank with warm water, corner brushes, 80 minutes off the mains, 3-year warranty.
Quiet 5,500 Pa window robot with corner brushes, a 14 cm/s planned route that resumes and returns to its start, a 140 kg-rated tether and a battery-station kit sold separately.
A 215 mm window robot for small and narrow panes from 22 × 25 cm: 7,500 Pa, ultrasonic misting from a 60 ml tank for 25 m², three modes, 1.3 kg and 30 minutes of grip after a power cut.
Ecovacs' corded entry-level Winbot: 5,300 Pa, six spray nozzles on a 60 ml tank for 40 m², seven modes on a planned WIN-SLAM route, an edge mode and 30 minutes of grip after a power cut.
Which window robots fit your glass, how they hold on when the power fails, what the rope and the backup battery are for, and which ranking to open next.