No matter which HOBOT you choose, they all will clean a window very well. HOBOT is the world’s leading innovator and manufacturer of robotic window cleaning machine.

Below are some key specifications to help you choose the right robotic window cleaner:

Glass cleaning speed

Rank	Product	Time per 1sqm
1	HOBOT 298	2.4 minutes
2	HOBOT 388	4.0 minutes
2	HOBOT 198	4.0 minutes

Types of surfaces

Rank	Product	Frameless glass	Tiles	Marble	Rough surface
1	HOBOT 298	Yes	Yes	Yes	Yes
2	HOBOT 388	No	Yes	Yes	Yes
2	HOBOT 198	No	Yes	Yes	Yes

Inbuilt Ultrasonic water sprayer

Rank	Product	Water tank
1	HOBOT 298	50ml
2	HOBOT 388	50ml
2	HOBOT 198	No

Power cord length

Rank	Product	Length
1	HOBOT 298	5m
1	HOBOT 388	5m
2	HOBOT 198	4m

Suction force

Rank	Product	Suction power
1	HOBOT 298	6kg
2	HOBOT 388	5kg
2	HOBOT 198	5kg

Ability to work on small windows (minimum size windows)

Rank	Product	Size
2	HOBOT 298	40cm x 40cm
1	HOBOT 388	35cm x 35cm
1	HOBOT 198	35cm x 35cm

In summary, if you are after speed and larger surface area then purchase the HOBOT 298, which we recommend for Commercial and Residential use.

If you have no desire to spray solution onto a pad and want the latest AI software and sleek design for your home, purchase the HOBOT 298 or 388.

If you want something cost effective reliable and you don’t mind assisting the robot with some cleaning solution, then the HOBOT 198 is for you.