Comparison HOBOT 268 vs HOBOT 188

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.

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

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, while devices above 65 dB may interfere with work or relaxation nearby. A robot produces sound throughout the entire cycle, whereas a handheld vacuum makes noise only while directly collecting water.