Product Overview
The Ecovacs WINBOT W3 is a corded window and skylight cleaning robot from Ecovacs, the Chinese cleaning-robot maker that leads the global window-cleaning category. The robot body measures 270×270×76mm and ships with a dedicated docking station measuring 344×226×430mm, so it stays powered and self-docks between glass panels instead of being carried by hand. Suction adhesion holds the unit flat against vertical glass and gently pitched skylights, and it works on both framed and frameless glazing. Minimum recommended pane size is 30cm. A 2-in-1 spray-and-wipe path keeps the surface wet long enough for the squeegee to lift dust rather than smear it.
Core Technologies & Safety
The W3 leans on an eight-way planning engine: fast, deep, fine, edge, spot, zone, heavy-dust and remote modes. That last pair matters on a roof window — when a skylight sits behind a railing you switch to remote mode and drive the robot yourself rather than trusting the default path. A frameless-glass detection routine watches the glass edge and keeps suction high where the panel thins out, which is the single biggest cause of window robots falling. A safety tether clips to a fixed indoor point as the second line of defence. The station also recharges and stows the unit, cutting the setup time on multi-pane roofs from minutes per pane to seconds.
Key Advantages
For anyone weighing a skylight cleaner against a ladder and a squeegee, the W3 is the version to buy if you have more than a handful of panes and a power socket within reach. The docking station is the real differentiator — you clean a bank of panes in one session instead of planning around battery swaps. Where it loses: it is a corded machine, so a glass roof without an outdoor outlet means running an extension lead, and steep or heavily framed skylights need the remote mode and patience. It cleans glass and smooth tile well; it is not a substitute for a facade robot on an 80-metre curtain wall.