Review on HOBOT-2S: The Ultimate Window Cleaning Robot with Dual Ultrasonic Water Spray and Smartphone/Remote Control by Candra ᠌
Fits the description completely, very satisfying.
Has some pros In general, a good washer, for several times and systematic washing of windows washes well, especially where there is no way to reach out with your hands (windows are at a height). Cons below: A little cleaner) any stains, smudges must be washed manually.
