Comparison ECOVACS WinBot MINI vs ECOVACS WinBot 920

The electrical power consumption reflects the load on the motor, suction fan, drives, and electronics, but does not directly measure cleaning quality. It is more appropriate to compare this figure within the same type of equipment: a more powerful device may provide greater operating capacity, but streaks and residual water are influenced more strongly by the nozzle design, the condition of the cleaning pads, and the movement algorithm. For corded models, this value also helps assess the requirements for the adapter or external power source.

Suction power determines how reliably the window-cleaning robot adheres to the glass. A higher value helps maintain grip when moving over joints, minor irregularities, or areas where the cleaning pad does not fit tightly. However, stronger suction does not guarantee better removal of stains and streaks—the result also depends on the cleaning pads, liquid dispensing, and route. Regardless of the stated pressure, the robot should be secured with a safety tether.

 

The backup power system uses a built-in battery to keep the window-cleaning robot attached to the glass in an emergency after the mains power goes out. It does not allow full cleaning to continue, but keeps the device attached to the glass and gives you time to remove it in the event of a sudden power outage or accidental cable disconnection. The specified time indicates how many minutes the system can maintain the robot’s adhesion to the glass without mains power.

The noise level indicates how loud the window cleaner operates: the lower the value, the more comfortable the device is to use indoors. Models quieter than 60 dB are comparable in volume to a calm conversation, the 60 – 65 dB range is already clearly audible, and devices above 65 dB may interfere with work or rest nearby. A robot remains audible throughout the entire cycle, whereas a handheld vacuum makes noise only while directly collecting water.

The cable length determines whether the corded window-cleaning robot can reach the farthest part of the glass without straining the wire. When calculating, account for the route from the outlet and adapter to the window, and arrange any excess cable so that it does not interfere with movement or the safety rope.