Window Cleansing Robots Have a Lengthy Solution to Go

I don’t do home windows. It’s not that I don’t wish to; it’s simply that, as a full-time mum or dad and freelance know-how journalist, I not often have the time to maintain even the within of my home as clear as I’d like, not to mention meticulously wipe away the steadily accumulating mud on the surface of my home windows.

However boy, it’s good to have a clear window to look out of! So, once I walked right into a room at CES 2026 and noticed the Ecovacs Winbot W3 Omni window cleansing robotic crawling backwards and forwards throughout an enormous sheet of glass, steadily cleansing because it went, it was laborious to not be intrigued. Might this factor really assist me maintain my home windows clear, or wouldn’t it simply be one other tech-based, disappointing semi-solution to my issues?

The cynic in me assumed it will be the latter, and yeah, it was for me. I’ve solely realistically bought three home windows it may feasibly deal with, and that’s simply not sufficient to justify the $700 value of the W3 Omni. However I’ve been in properties with extra and bigger home windows than mine, and I’ve definitely completed my justifiable share of window cleansing. There are individuals this robotic is for; I’m simply not certainly one of them.

This robotic does home windows

The Winbot W3 Omni is way from the primary window-cleaning robotic, but it surely’s the primary one I’ve ever used. Getting into, I wasn’t completely positive what to anticipate, however I used to be sure of some issues primarily based on my expertise with robotic vacuums. I assumed, appropriately, that it will suck at edges and corners, and that to get one of the best out of it I must rearrange my world round it, shifting vegetation, curtains, and furnishings out of the best way to verify they didn’t get bumped, knocked over, or sprayed with cleansing answer. The W3 Omni options “clever multi-sensor detection,” however that simply meant if it encountered one thing that didn’t give method and its bump sensors triggered, it stopped and went the opposite method. And it took some pretty inflexible pushback; my HomePod mini on a windowsill was too mild to cease it and bought shoved apart. Mainly, it cleans like a well-meaning, however inexperienced teenager.

With that apart, let’s speak about what’s good in regards to the W3 Omni for a bit. Just like the enjoyable method it really sticks to and washes your window. Keep in mind the suction-based, self-wall-mounting Displace TV that made such an enormous splash a couple of years in the past, and re-emerged not too long ago as a TV-mounting accessory? Winbots have used the identical method for years—you place one in your window and its inside motor begins the suction up, sticking to your window like a plastic-and-metal lamprey, or some alien creature that may have head-crabbed you if not in your window.

As soon as connected, the W3 Omni drives round utilizing a pair of rubber tank-style treads, often with overlapping, horizontal passes however generally vertical ones. The bump sensors on the edges of the robotic are fairly good at detecting when it’s reached the body across the outdoors fringe of the window, and Ecovacs says it may additionally sense the sting of frameless glass. I had no such factor useful for testing, however I did see that functionality in motion on a frameless pane of glass in that room at CES. It labored properly, the best way a robotic vacuum’s edge sensor retains it from tumbling down stairs.

The W3 Omni is powered by a versatile braided cable that runs from the robotic to a reel contained in the dock that slowly unwinds, giving the robotic extra slack because it goes. The dock homes a battery pack that connects with a five-pin connector that appears just a little like a small microphone XLR connector, making it transportable sufficient to make use of outside if you happen to want, though the cable was lengthy sufficient to let it cowl all of my window exteriors from inside the home. On the finish of a clear, you’ll press a button on the dock to softly, however shortly, haul the cable again in.

Because the W3 Omni goes, it drags a moist microfiber pad throughout the floor of the glass whereas periodically spritzing your window with cleansing answer. (Naturally, this answer is a first-party components and the one one Ecovacs recommends or ensures. A one liter replacement bottle costs $25.) It was very satisfying to look at as, on every drive from left to proper or vice versa, extra of the long-caked mud on my home windows disappeared. None of this took a lot time. It completed with the outside aspect of my greatest window (4 x 3.5-foot) in just a little over 5 minutes on the “Thorough” setting, and simply over two minutes on the “Quick” one.

When the W3 Omni is completed with a clear, it returns roughly to the place it began from, and waits to be retrieved. To take it off the glass, you seize the robotic’s deal with, then press and maintain its energy button and look forward to the vacuum motor to gradual and cease. Then you possibly can take away the pad (with the plastic body that it’s glued onto) from the underside of the W3 Omni, open a panel on the entrance of the dock, put the pad in, shut it, and set the dock to scrub it utilizing water and 4 spinning brushes. That takes a minute or a minute and a half, relying on the settings you select, utilizing both the Ecovacs Dwelling app or the show and controls on high of the dock.

Talking of the Ecovacs Dwelling app: there’s not a lot to it. You’ll want it for firmware updates, however something you are able to do with the app, you too can do from the show on the dock itself. That features setting and switching cleansing modes—there are a number of accessible along with those I discussed above, together with a mode for “Heavy-Obligation” cleansing that may remind you each 5 or 10 minutes to scrub the pad and an edge-only one that may assist shore up the robotic’s not-great edge cleansing.

Don’t count on miracles

Utilizing the W3 Omni to avoid wasting myself from cleansing home windows wasn’t with out folly. On the primary run, the W3 Omni left obvious, horrible streaks on the window. That appeared to occur as a result of I hadn’t moist the pad sufficient earlier than sending the robotic off to scrub a very soiled window, however I seen even with a correctly moistened pad (it doesn’t must be dripping moist, but it surely does must be greater than just a little damp), it may depart streaks in corners, significantly with smaller panes just like the roughly 24 x 22-inch ones within the decrease half of my residence workplace’s home windows. It additionally couldn’t deal with the outside of these home windows. The tapered body on the surface parts didn’t at all times catch its bump sensors, inflicting the robotic to cease in place and concern an error, complaining that it couldn’t clear this specific window.

After my first spherical of testing, it appeared just like the transfer for avoiding streaks was to scrub and substitute the pad each two home windows or so when issues are particularly dusty. In any other case, even with a correctly soaked pad, the W3 Omni won’t depart streaks however may nonetheless plant a unclean, sq. footprint when it parked on the finish to attend for retrieval. Think about if you happen to completed cleansing your home windows however determined to press your soiled rag into the glass afterward—that’s what occurred right here if I didn’t maintain the pad clear.

My window earlier than and after the the Winbot W3 Omni washed it.

The subsequent concern I bumped into was that, on the most important window in my home, the W3 Omni would initially solely clear the underside proper quadrant earlier than declaring its job completed. I attempted fixing it with an extra-large window cleansing mode that’s really meant for four-meter (13 toes) home windows—whereby you manually drive it to the center of your window utilizing the Ecovacs App’s on-screen joystick (which is surprisingly responsive and enjoyable to make use of), then faucet buttons for cleansing the left or proper half of the window—however the robotic simply sat, unmoving.

How frequent that sort of buggy conduct is I can’t say, as I solely skilled it as soon as throughout my testing. However it did spotlight how unhelpful Ecovacs’ web site and app are relating to troubleshooting, as I couldn’t discover something that describes what to do if the robotic repeatedly ends its job early. Good factor I find out about turning issues on and off once more—a restart of the dock mounted the difficulty.

Not your regular sensible residence machine

The Winbot W3 Omni isn’t a sensible residence machine the best way so many issues I write about are. You’re way more concerned in its operation than one thing like a robotic vacuum, since it’s important to put it on home windows, take it again off, take away its pad for cleansing, and extra. The W3 Omni gained’t hook up with your sensible residence and also you gained’t management it along with your voice or set off it with automations. In some methods, it’s extra similar to a yard sprinkler than a robotic vacuum; it’s a instrument with a really particular use however that doesn’t do something with out motion from you.

Nonetheless, it has some smarts. Moreover bump sensors for edge detection, it additionally has an air stress sensor that lets it know when it’s shedding suction. The W3 Omni may additionally inform when its tracks had began slipping as a result of the window was too moist. I encountered each, and after they occurred, a crimson mild appeared on the underside of the robotic and an alert sounded from the dock to get my consideration, in case the app notification didn’t.

That’s all similar to the best way robotic vacuums work. Additionally like robotic vacuums, the W3 Omni has consumables. Particularly: that cleansing answer I discussed earlier, in addition to the cleansing pad, which prices $32 a pair, however very a lot appears like it may’t probably value quite a lot of cents to make. It’s laborious to say how lengthy the pads would final between replacements, however in contrast to a robotic vacuum, you’re not more likely to run your window cleansing robotic every single day, so I doubt individuals will undergo them terribly usually.

In contrast to a robotic vacuum, I don’t assume battery life issues all that a lot for the W3 Omni. Sure, it’s a transportable machine that Ecovacs says is nice for about 130 minutes of steady use. However its dock additionally has an influence cable, and is supposed to be near a wall anyway—if you happen to’re utilizing it indoors, likelihood is good that you simply’re close to an outlet. That mentioned, Ecovacs’ estimate does appear about proper, primarily based on my testing. And having beneficiant battery means if I depart my home to run an errand and neglect to show it off, likelihood is higher that it gained’t fall off and destroy itself earlier than I return.

Is that this factor even good?

I do know I simply listed an entire lot of limitations and caveats, and that’s as a result of I wish to ensure you know what you’re stepping into if you happen to purchase the W3 Omni. It’s not a miracle employee, however after doing the primary passes on my home windows, I feel it’s high quality for ongoing upkeep cleansing, which is strictly the area of interest I additionally see most robotic vacuums filling. It’s extra restricted than a robotic vacuum, however that’s not a nasty factor; it helps maintain expectations life like.

However life like expectations can’t save the W3 Omni from the truth that it asks much more of you than many sensible residence gadgets, and it’s very easy for that to flip the stability from value it to extraordinarily not value it. If I’ve to spend extra time shifting it from one window to a different than if I had simply grabbed a sprig bottle and a paper towel and utilized myself for as soon as, that’s an terrible waste of $700. Nonetheless, if you happen to reside in a really fancy home with plenty of gigantic home windows or a luxurious high-rise condo, it may assist maintain issues manageable. However you sort of additionally want to love watching easy robots work and have a wholesome tolerance for troubleshooting. In spite of everything, shopping for one thing like that is as a lot about having a toy as it’s about filling a necessity.