Yoolax has been making automated cleaning gear for a few years now, and the Window Cleaning Robot 2.0 is their latest attempt to solve a genuinely annoying chore. The headline feature here is the dual cross spray technology, which mists a fine layer of cleaner onto the glass before the robot starts its pass. That alone saves you from the awkward pre-spray-and-wipe dance most people do with a bottle and rag.

The robot runs through six cleaning paths, which sounds like marketing fluff until you watch it work. It starts with edge detection to map the frame, then moves in a deliberate zigzag pattern rather than random bouncing. At roughly 2.85 minutes per square meter, it’s not fast, but it is thorough. The lithium ion battery handles a full session on standard windows without issue, and you control everything through the app or the included remote. The app gives you path selection and a manual spray trigger, which is useful for stubborn spots.

One honest limitation: the robot needs a clean power drop to start, meaning you have to wipe the top third of a really dirty window manually first. It also struggles with frames that have thick silicone seals. But for routine maintenance on standard casement or sliding windows, it keeps glass streak-free and saves your shoulders from the repetitive motion. It works best as a scheduled weekly tool rather than a deep-clean rescue device.