Due to a problem with AWS, many "smart" vacuums or doorbells will stop working
I've learned my lesson and no longer buy WiFi connected "smart" devices, unless I can flash them with custom firmwares.<p>ZigBee isn't without its flaws too but at least I can guarantee that the device doesn't require someone's online service to function. I just wish more devices offered it.<p>Pretty much anything with WiFi in it requires installing some dodgy looking app that requires you sign in with yet another account, and will probably stop working in a few years or when you eventually need to reconfigure your home's WiFi network.