W200 SkyBot
Limited evidenceRead the findings →Mamibot's only cordless window robot, running on a removable battery with no sprayer. It's for windows where a trailing cable is the real problem. It's unreliable, though, missing edges and stopping early, and you wet the pads by hand.
See the alternatives below, or switch market.
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What we know
There's one finished home test. Galaxus found it pleasantly quiet and genuinely free of cables, and once the tester got the amount of liquid on the pads right, it cleared everyday dirt and pollen. The trouble was reliability and effort: unfinished edges, runs that stopped early and finishing spots that kept changing, sometimes somewhere hard to reach. Galaxus got about 75 minutes from the battery, short of the 100 minutes Mamibot claims, and called the robot affordable but disappointing.
Galaxus, hands-on
Wetting the pads is fiddly
With no sprayer, you dampen the cloth pads yourself before each run. Galaxus found the dose made or broke the result: too little liquid and it cleaned poorly, too much and it left streaks. Once the tester found the right amount, it cleared everyday dirt and pollen. Stopping to rewet the pads meant starting the cleaning cycle again, which ate into the time it saved.
Unfinished runs and stray stops
Galaxus saw it leave edges uncleaned, stop early and finish in different places, sometimes somewhere hard to reach. A 4.18m² pane took more than 18 minutes. Mamibot claims it cleans a square metre in under three minutes and makes its own way back to where it started, and the test didn't bear that out. Expect to keep an eye on it and sometimes fetch it off the glass yourself.
Quiet and truly cordless
Galaxus rated it the quietest window robot it had tested, apart from an occasional squeak as it climbed. Mamibot quotes under 65dB. With no cable, it can reach windows far from a socket. The battery comes out to charge in a separate charger, and Galaxus got about 75 minutes of running from it, short of the 100 minutes Mamibot claims. Spare packs are sold separately.
Frameless glass and safety
Mamibot says four sensors spot the edge of frameless glass and the robot boosts its suction there so it doesn't slip off. It comes with a 1.5m safety rope to tie to something indoors and a suction cup on a 2.5m line. Galaxus notes you still need the safety attachment even without a power cable. Nobody has tested the frameless claim.
One finished independent test, from Galaxus. The same review also runs on its sister site Digitec.
Our take
Should you buy the W200 SkyBot?
Best for: Large windows or glass doors far from convenient sockets. Skip it if: You expect a spotless finish after one run.
Consider it only for windows where a trailing cable is the real problem, and only if you don't mind dampening pads by hand and stepping in when it stops. For most people, the Ecovacs WINBOT W2S OMNI is the better cordless-at-the-window choice: it sprays for you and had three positive home tests. For a cheap corded robot, the Ecovacs WINBOT mini has two home tests that found mostly streak-free glass.
The W200 SkyBot is the odd one out in Mamibot's iGLASSBOT range: the only model with no power cable. It runs from a removable battery pack that Mamibot says lasts up to 100 minutes, enough for about 30 square metres of glass, and you charge the pack separately. It's slim at 8cm, adjusts its grip on its own, looks for frames and frameless edges with four sensors, and heads back to where it started. There's no sprayer, so you dampen the cloths yourself. A remote controls it from up to 20 metres away.
The trade-off is reliability and effort. In Galaxus's test it was the quietest window robot the reviewer had tried, but it didn't always clean the whole pane or its edges, sometimes stopped part-way, and getting the pads just damp enough took trial and error. Going cordless doesn't remove the safety line either: you still anchor it indoors.
Before you buy
The questions people ask about this one
Do I have to add water or cleaner myself?
Yes. The W200 has no sprayer, per the specifications, so you dampen the cloth pads before each run. Galaxus needed some trial and error to get the amount right: too dry and it cleaned poorly, too wet and it streaked.
How long does the battery last?
the specifications claims up to 100 minutes and about 30 square metres per charge, with a 100-minute recharge. Galaxus got around 75 minutes. The pack comes out to charge in a separate charger, and Mamibot sells spare packs.
Does it leave streaks or edges?
Both, at times. Galaxus saw unfinished edges and runs that stopped early, and streaks when the pads were too wet. With the right amount of liquid it cleared everyday dirt and pollen well enough.
How long does one window take?
Galaxus timed more than 18 minutes for a 4.18m² pane. That's slower than the under three minutes per square metre the specifications claims, and rewetting the pads mid-run starts the cycle again.
Does it work on frameless glass?
Mamibot says so: the specifications describes four sensors that detect frameless edges and raise the suction there to stop it slipping. No independent test we've seen confirms it, so try it on a framed window first.
Alternatives
Other window-cleaning robots to compare.
WINBOT W2S OMNI
Why consider it: Its battery station frees it from the socket and it sprays for you, and three home tests found it cleans everyday dirt well.
The compromise: It won't fit small or top-opening panes, and corners and neglected glass still need a hand.
WINBOT MINI
Why consider it: Two German home tests found it left small and medium panes mostly streak-free after one pass.
The compromise: It's corded, so you need a socket near each window.
S7 Pro
Why consider it: TechRadar found it excellent on lightly dirty glass and spot on at detecting frameless edges.
The compromise: It's corded, and both tests found streaks on dirtier glass.
Specs
Full specifications
Each specification names its source. Manufacturer claims are not independent test results; unconfirmed figures are labelled.
Owner reviews
Do you own the W200 SkyBot?
Tell people how it’s held up: cleaning, maintenance, faults and support. Owner accounts are shown separately from independent reviews.
Sources
Where this page’s findings come from
Editorial reviews
Sources
- Mamibot: iGLASSBOT W200 SkyBot product page ↗Manufacturer
Videos
- Release year: How to use Mamibot new iGLASSBOT W200 SkyBot Robot Window Cleaner ↗News
- Tracy Liu: How to use Mamibot W200 SkyBot Robot Window Cleaner ↗
- William Will: Mamibot W200 SkyBot cordless robot window cleaner, how to use and install ↗
- Search YouTube for Mamibot W200 SkyBot ↗Search results may include company demonstrations or similar models. Check the source and model name; a demonstration is not an independent performance test.