WINBOT W3 OMNI
2 independent reviewsRead the findings →Ecovacs' top window robot, with a battery station that washes its cleaning pad for you. It suits homes with lots of large panes to keep clean. It's still slow to move between windows and can streak smaller panes.
Updated
Where it sits in ECOVACS’s range
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What reviewers found
Two home tests, and they land in different places. TechRadar Netherlands liked it a lot: good on normal dirt, close to the edges and made far easier by the pad-washing station. Gizmodo was cooler, finding streaks in corners, poor edge cleaning, a window it couldn't handle and one glitchy run. Both see it as a way to keep glass clean rather than rescue it, and both say it only makes sense with lots of large windows. An owner on Reddit owner is just as keen on the station.
Gizmodo, hands-on, Apr 2026 · TechRadar Netherlands, hands-on, Aug 2026
Cleaning result
Mixed resultsTechRadar Netherlands found dust, fingerprints and light film came off easily and edges were cleaned closely. Gizmodo saw streaks in corners of smaller panes, weak edge cleaning and a dirty square where it parked unless the pad was washed often.
Safety
Reviewers rate it highlyNeither TechRadar Netherlands nor Gizmodo reported a fall, and Gizmodo described firm suction and warnings when grip or traction dropped. Still fix the station, cable and anchor as the manufacturer says and stay with it as instructed, since battery life is no reason to leave a window robot running alone.
Surfaces it suits
Not enough evidenceOnly Gizmodo tried different glass: it streaked the corners of small panes and stopped with an error on windows whose tapered outside frames didn't trigger its bump sensors. None of the reviews we use tried frameless glass at home.
Ease of use
Mixed resultsTechRadar Netherlands found setup easy and the pad-washing station a big help, with most controls on the dock. Gizmodo had to clear windowsills first, hit one run that stopped early until a restart, and found Ecovacs' troubleshooting help lacking.
Noise
Not enough evidenceNone of the reviews we use has tested its noise yet.
Value
Mixed resultsBoth call it expensive for one job. TechRadar Netherlands thinks the pad-washing station earns part of the premium for homes with big glass, and Gizmodo found it not worth it for a home with only a few suitable windows.
Verdicts come from independent, hands-on, finished reviews. An area needs at least two of them before we say more than “Not enough evidence”. We don't score robots ourselves. How this works
The pad-washing station is the star
TechRadar Netherlands called automatic pad washing the real highlight. You clip the pad into the station, water jets and brushes clean it, and after a minute or so it comes out clean and damp. Because it's so easy, the reviewer washed it more often, which helped avoid smearing dirt around. Gizmodo timed the wash at a minute to a minute and a half. An owner on Reddit owner valued it most too. You still move the robot between windows yourself.
Good on normal dirt, weaker on neglect
TechRadar Netherlands found dust, fingerprints and light film came off easily, but months of build-up could need a second round or a clean by hand. Gizmodo saw long-caked dust vanish, but also bad streaks on the first run with an under-wetted pad. Even with a properly damp pad it streaked the corners of smaller panes, and a dirty pad left a square mark where the robot parked. On dusty glass, wash the pad every couple of windows, as Gizmodo ended up doing.
Reviewers split on the edges
TechRadar Netherlands rated its edge cleaning well: corners weren't always perfect, but it got close and rarely skipped big patches. Gizmodo called edge cleaning not great and leaned on the edge-only mode to help. Gizmodo also had it stop with an error on windows whose tapered outside frame didn't trigger its bump sensors. Window shape might explain some of the gap between them, so look at how your frames meet the glass before buying.
A big, heavy station to carry
TechRadar Netherlands compared the station's size with a robot vacuum dock and pointed out that it has to come with you from room to room. Gizmodo found the cable long enough to reach all its window exteriors from inside, and thought Ecovacs' battery estimate looked about right. It also had to move plants and curtains out of the way, and the robot shoved a small speaker aside on the windowsill. Plan where the station will sit, and clear the sill first.
Quick per pane, slow per house
Gizmodo cleaned the outside of a window roughly 1.2 by 1.1 metres in just over five minutes on Thorough and about two on Fast. Most of your time goes on handling it: putting it on, taking it off and washing the pad. TechRadar Netherlands said that barely matters on one big sliding door but adds up fast in a house full of smaller windows. Gizmodo also had one run stop a quarter of the way across the pane until the station was restarted.
TechRadar's review ran in its Dutch edition. Gizmodo tested the US model.
Our take
Should you buy the WINBOT W3 OMNI?
Best for: Large glass doors whose owners want the cleaning pad washed for them. Skip it if: Your windows are split into lots of small panes.
Consider it for large panes if automatic pad washing would make the routine easier. You still need safe access and must move it between windows. For small panes, check the mini 2's minimum glass dimensions. The lighter W2S OMNI is worth comparing if you are happy to rinse pads yourself.
The W3 OMNI is the top of Ecovacs' window range. Like the W2S OMNI it runs from a portable battery station and has scrubbers that drop down at the frame, but this station also washes the dirty pad with water jets and brushes in about a minute. You still lift the robot on and off each pane yourself.
The two tests land in different places. TechRadar Netherlands found dust, fingerprints and light film came off easily, edges were cleaned closely, and the pad washer made the whole job much easier. Gizmodo saw streaks in the corners of smaller panes, called edge cleaning not great, had it stop with an error on windows with tapered outside frames, and got a dirty square where it parked unless the pad was washed often. Neither had it come loose. Both say it only makes sense with lots of large windows, and TechRadar Netherlands warns the station is about the size of a robot vacuum dock and has to come with you from room to room. Nobody has tested it on frameless glass or measured its noise.
Where to buy
Where to buy the WINBOT W3 OMNI in United States
ecovacs.com/us
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Price history
WINBOT W3 OMNI price history in the US
Above average Today's $699.99 is above its $599 average since 19 Sept 2026.
- Today
- $699.99
- Lowest seen
- $5493 Oct 2026
- Average
- $599since 19 Sept 2026
Before you buy
The questions people ask about this one
Will it work on frameless glass?
Ecovacs says it can sense the edge of frameless glass. Gizmodo saw that working on a demo pane at a trade show but had no frameless glass at home to try it on, and TechRadar Netherlands didn't cover it. Treat it as unproven and keep the safety cable tied off.
What happens if the power cuts out?
The station runs from battery or mains. the specifications gives a claimed emergency hold time after power loss, separate from its normal cleaning time. Fix the station, safety cable and any separate anchor as ECOVACS says, and take the robot down promptly and carefully after a power or grip warning.
Does it leave streaks?
Sometimes. Gizmodo got streaks with a dry pad, streaky corners on smaller panes and a dirty mark where it parked. TechRadar Netherlands got clean results on normally dirty windows. Keep the pad properly damp and wash it in the station every couple of windows.
How long does one window take?
Gizmodo timed just over five minutes on Thorough and about two on Fast for a window roughly 1.2 by 1.1 metres. Ecovacs quotes about a minute and a half per square metre in fast mode, per the specifications. Add the time it takes to move it and wash the pad.
Does it need a special cleaning fluid?
Gizmodo notes that Ecovacs' own solution is the only one it recommends or guarantees, and the pads are a paid consumable too. TechRadar Netherlands filled the robot with cleaning fluid and the station with clean water for pad washing. Budget for both solution and replacement pads.
Alternatives
Other window-cleaning robots to compare.
WINBOT W2S OMNI
Why consider it: Trusted Reviews found it cleared dust, water marks and smears, and it also runs from a battery station.
The compromise: You rinse the pad by hand, and it won't take panes smaller than 30 by 40cm.
C1 Station
Why consider it: Roboter-Forum found it cleaned everyday dirt well, and its portable station means no socket hunting.
The compromise: There's no pad washing, and corners and spray marks still needed a final wipe.
S7 Pro
Why consider it: Two scrubbing pads, and TechRadar found it spot on at detecting frameless edges.
The compromise: It needs a socket, and both of its reviewers saw streaks on dirtier glass.
WINBOT W3 OMNI head to head
Head to head
ECOVACS WINBOT W2S OMNI vs WINBOT W3 OMNI
Our verdict: The W2S OMNI cleans the same way, with three positive home tests behind it, and its station is much lighter. The W3's pad washing is a real improvement, but it costs more. Pick the W3 only if rinsing pads is what stops you using a window robot.
Specs
Full specifications
Each specification names its source. Manufacturer claims are not independent test results; unconfirmed figures are labelled.
Owner reviews
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Sources
Where this page’s findings come from
Editorial reviews
Sources
- Reddit owner: W3 owner report after several weeks ↗Owner thread
- ECOVACS: WINBOT W3 OMNI product page (US) ↗Manufacturer
Videos
- VittorTech: ECOVACS Winbot W3 OMNI - Long Term Review - 6 Months Later… ↗
- ModernDayReviews: ECOVACS Winbot W3 Omni Window Robot - Full Review & Test ↗
- Search YouTube for ECOVACS WINBOT W3 OMNI ↗Search results may include company demonstrations or similar models. Check the source and model name; a demonstration is not an independent performance test.