Roomba Combo j9+
Robot vacuum and mop with sensors and an app; the battery, drive, brushes, dock and software are what make long-term data especially valuable here.
auto-translatedDesign strengths: brushes, filters, wheels and battery are declared wear parts and are widely available; self-emptying docks cut day-to-day maintenance considerably; mapping and cleaning logic improve through firmware updates.
Typical long-term problems: battery; wheels and side or main brushes; LiDAR, camera and cliff sensors; docking contacts; on mopping stations, pumps, valves and drying; map, app and firmware faults; hair and dust packed into bearings; mechanical lift and mop modules. Dependence on cloud services and the app is an additional risk to useful life.
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