Not entirely new, since it was demoed during CES 2011, but it is definitely worth a mention, that Ecovacs introduced a new robot called Winbot W553. Winbot, as its name suggests, cleans windows. The square shaped robotic couple goes on the two sides of the window and they are held together by strong magnetic force. The information available of the robot is scarce, but it seems that both modules have a microfiber cleaning cloth cleaning head, and both units carry a bumper for collision detection. Only one of the two parts contain the drive motor for moving around.