The robot that sticks to a window and cleans it while you watch
Is this the right fit?
- Best for
- tall or fixed windows you cannot safely reach, sliding doors, and glass railings
- Skip if
- It cannot fully clean the last inch at the frame edge, so corners still need a hand pass
- Check before ordering
- Confirm the dimensions, exact model, included parts and return terms on the Amazon listing before ordering.
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The Tosima W5 is a suction-mounted window cleaning robot that adheres to glass at 6400Pa, sprays cleaning solution from onboard nozzles, and works a path across the pane with microfiber pads. Path planning means it covers the glass systematically rather than wandering. A safety tether plus a backup battery keep it attached during a power interruption, which is the concern with anything hanging on a second-floor window. Best fit: tall or fixed windows you cannot safely reach, sliding doors, and glass railings. It handles smooth glass, so heavily textured or leaded panes are out, and it needs a small margin at the frame that it finishes by hand.
Pros
- 6400Pa suction plus a safety tether and backup battery, so a power cut does not drop it
- Auto-spray nozzles apply solution as it works instead of you pre-wetting the pane
- Path planning covers the glass systematically rather than randomly
- Reaches high and fixed windows you would otherwise need a ladder for
Cons
- It cannot fully clean the last inch at the frame edge, so corners still need a hand pass
Frequently asked questions
What happens if the power goes out while it is on a window?
A backup battery keeps the suction running long enough to bring it down, and the safety tether is the physical backstop. Always anchor the tether before starting.
Does it work on textured or frosted glass?
It needs a smooth surface to maintain suction. Heavily textured, leaded, or deeply frosted glass is not a good fit.
Does it clean all the way into the corners?
No. It leaves a small margin at the frame that you finish by hand. That is true of every window robot in this category.
Can I use it on mirrors and glass railings?
Yes, any smooth flat glass or mirror surface works, including shower doors and glass railing panels.
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