Comparison HOBOT R3 vs HOBOT 2S

The nominal processing time for 1 m² of glass helps assess the operating speed of a window-cleaning robot: the lower the value in min/m², the faster the pass. For example, at 2.5 min/m², a surface measuring 4 m² will require about 10 minutes, excluding a repeat cycle, repositioning the device, and preparing the cleaning cloths. Models are best compared in identical modes, since the result is affected by the route, degree of contamination, and number of passes.

 

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.