Most expensive robotic Window Cleaners

Robotic Window Cleaner - mains-powered, remote control, basic navigation, horizontal and vertical movement, 0.06L container capacity, safety rope, suitable for frameless surfaces, ultrasonic nozzles, UPS backup battery, operates in vertical position, 6m cable length, window frame detection and automatic return function, 65dB(A) noise level, 25min runtime, 1.05kg weight, dimensions 7.75×26.9×13.7cm (H×W×D)

Robotic Window Cleaner - mains powered, controls on the device, via app and remote control, minimum glass thickness of 3mm, gyroscopic navigation, horizontal and vertical movement, 65ml tank capacity, Wi-Fi, safety rope, suitable for smooth glass surfaces, atypically shaped, frameless and large-format windows as well as shop windows, 2× ultrasonic nozzles, 5m operating radius, double-cleaning cycle function, window frame detection and spot cleaning, 70dB(A) noise level, mopping cloths included, 60min operating time, 2.5h charging time

Robotic Window Cleaner - mains-powered, control on the body and via remote control, minimum glass thickness 30 mm, gyro navigation, horizontal and vertical direction of movement, container volume 0,06 l, cleaning speed 4.5 m²/min, low water consumption, safety rope, for frameless surfaces, ultrasonic nozzles, UPS battery backup and works in the vertical position, cable length 4,5 m, double cleaning cycle function, detection of window frames, automatic return after cleaning and spot cleaning, noise level 70 dB(A), mopping fabric, water container and safety rope included, battery capacity 650 mAh, operating time 20 min, charging time 2.5 h, weight 1.7 kg, Dimensions 29 × 14 × 8 cm (H×W×D)