I haven't tested it, but the basic impression is that nothing really works without Wi-Fi. Apart from pressing the start button and cleaning. I turned off the Wi-Fi and the vacuum at night for a while - a huge derby every time until it reconnected. Basically, it's a brilliant device, but it reacts sensitively to manual intervention. It would probably prefer a flat without thresholds, which it can clean independently (and in permanent consultation with the Xiaomi Cloud). For example, if I carry it from one room to another (because of the thresholds) and then have it clean, it sometimes forgets the map of the entire flat because it is so scared...

...although it does work, the W-LAN doesn't work overnight for me either and during the day the vacuum cleaner runs according to plan :-)

Needs konstat W-LAN according to description, in the Xiaomi APP in the tab Plans...