Independent rankings
The window robots that give up the least for the money, ranked on capability for the money spent, with the whole catalogue as the yardstick.
Value here is capability per unit of money, measured against every other machine in the catalogue rather than a price bracket we invented. A cheap robot that leaves the corners and lets go in a power cut is not a bargain.
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.
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.
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.
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.
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.
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.
Mamibot's flagship with a squeegee: 8,000 Pa, a 215 ml tank for 35 m², four-side edge sensors, five modes, a 650 mAh backup for 25 minutes and a combined cable and rope, for glass, tiles or marble.
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.