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Comparison HOBOT 300 vs HOBOT R3

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HOBOT 300
HOBOT R3
HOBOT 300HOBOT R3
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from £269.00 
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Protection against power loss for 20 minutes.
Typewindow robotwindow robot
Specs
Performance4 min/m²
Detergent solution tank40 ml
Power sourcemainsmains
Backup power20 min20 min
General
Noise level65 dB74 dB
Control via smartphone+
In box
remote control
remote control
Cable length5 m4.5 m
Dimensions (H×W×D)9.5x29.5x14.8 cm9.5x29.5x14.8 cm
Weight0.93 kg0.95 kg
Added to E-Catalogaugust 2025october 2023
Compare HOBOT 300 and R3
HOBOT 300 often compared
HOBOT R3 often compared
Glossary

Performance

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.

Detergent solution tank

 

Noise level

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.

Control via smartphone

Smartphone control allows you to control the window-cleaning robot through the dedicated mobile app. From your phone, you can start and stop cleaning, select a mode, change the direction of movement, and monitor the device status—the exact set of commands depends on the model. The smartphone connection can be established via Bluetooth—for direct control nearby without a router—or via Wi‑Fi, which provides a greater connection range and may support remote access over the internet.

Cable length

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.