I tried a window-cleaning robot and it was surprisingly impressive, especially at $200 off
Briefly

The Ecovacs Winbot W2 Omni Pro, currently on sale for $500, is a state-of-the-art window-cleaning robot with features that enhance both functionality and user experience. It comes equipped with a portable station for easy setup and is designed to clean windows both indoors and outdoors with a battery life of up to 110 minutes, covering up to 592 square feet. Users can operate it via an app, making window cleaning almost effortless. The device exemplifies Ecovacs' evolution over 13 years of innovation in window-cleaning technology, transforming a mundane task into a more enjoyable activity.
After charging the robot and setting it up in the Ecovacs app, the Winbot W2 robot needed me to install one of the two included microfiber mopping pads....The Winbot W2 Omni instruction manual recommends filling the tank with a cleaner.
Ecovacs estimates that the battery lasts up to 110 minutes, translating into a 592-square-foot coverage area, ideally suited for the average US home.
Read at ZDNET
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