Do window cleaning robots actually work?
Oct 23, 2026 · 4 sourcesA robot that climbs your windows sounds like a gimmick. Reviewers who lived with one came away more positive than you might expect, with a few clear limits. Here's what Ecovacs' two Winbots do, where they struggle, and how they hold on to the glass.
What they do well
On flat glass, they work. In a weeks-long review, CyberShack found the Winbot W3 Omni cleaned large panes better than by hand. TechRadar's first look at the W2 Pro Omni had it cleaning windows, mirrors and shower doors.
Both do the tedious part: they spray cleaning water through three wide-angle nozzles and wipe with a wet pad, and the W3 Omni's dock washes the pads for you.
Sources: [1] CyberShack, [2] TechRadar (via Yahoo Tech), [3] Ecovacs, [4] Ecovacs
Where they fall short
The W3 Omni left a faint outline of its pad that CyberShack wiped off by hand, and it once got stuck on a roller blind. How they cope with framed panes that leave little room to turn hasn't been tested in our sources.
TechRadar's test of the W2 Pro Omni was a first look, not a long-term review, so durability over years is still an open question.
Sources: [1] CyberShack, [2] TechRadar (via Yahoo Tech)
How they stay on the glass
Both hold on by suction and are tied to their station by a cord in case suction lets go. According to CyberShack, the W3 Omni adds about 30 minutes of backup power and a cord rated for 100 kg; Ecovacs lists a 12-level protection system for both.
Sources: [3] Ecovacs, [1] CyberShack, [4] Ecovacs
Which one to look at
If you clean a few large windows and don't mind rinsing pads, the W2 Pro Omni covers the basics. If you'd rather never touch a dirty pad, the W3 Omni's self-washing dock is the difference; CyberShack's review lists it at AU$1,299 in Australia. Our side-by-side comparison has every checked detail.
Sources: [3] Ecovacs, [4] Ecovacs, [1] CyberShack
Keep going
- Can a robot clean your windows?
- Can a window robot spray and wipe on its own?
- Can a window robot fall off the glass?
Status pages: Ecovacs Winbot W2 Pro Omni · Ecovacs Winbot W3 Omni
How we know (4 sources)
Weeks-long review of the Ecovacs Winbot W3 Omni (AU$1,299), 4.5/5: cleaned better than by hand, with a dock that washes its pads and layered safety (strong suction, about 30 minutes on backup power, a 100 kg safety cord). Leaves a faint pad outline to wipe off, once got stuck on a roller blind, and suits large square panes best.
Read the sourceHands-on first look at the Ecovacs Winbot W2 Pro Omni on windows, mirrors and shower doors. It holds on by suction, with a safety tether to the power pack in case it lets go.
Read the sourceGlobal product page for the Winbot W2 Pro Omni, read Oct 23, 2026: a portable station with a built-in battery, an automatic cable coiler, controls and storage; a two-in-one cable that combines safety and power cords; three-nozzle wide-angle spray with a wet mop; and a 12-stage protection system.
Read the sourceUS product page for the Winbot W3 Omni, read Oct 23, 2026: a station with Vortex Wash that washes the wiping pads automatically, three-nozzle wide-angle spray with a wet pad, TruEdge edge cleaning, a two-in-one cable that combines safety and power cords, and a 12-level protection system.
Read the source