iRobot's newest cleaning machine is the first to wash and dry its mopping pad for you

Engadget 

The (deep breath) Roomba Combo 10 Max Robot AutoWash Dock automatically washes and dries the mopping pad, something you had to do manually on all its previous combo vacs. But at 1,399, many customers will want to wait several generations for the feature to trickle down to models that don't cost nearly the equivalent of a MacBook Pro. Cleaning robots exist to automate tasks that are a pain for us, and the Roomba Combo 10 Max Robot expands on that. You can manually run self-cleaning, and its companion app will remind you when it's time for standard maintenance or a deeper cleaning. The robot can store dirt and debris for up to 60 days before emptying, and the mopping pad and self-cleaning tank hold up to seven days of water.