Shelly 1 Mini Gen4

Paired it with my ZigBee hub in about two minutes and it's been rock solid since. The relay is tiny enough that I squeezed two into a double gang box without any trouble. Switching my hallway lights from my phone finally feels effortless.

Fits behind my existing wall switch with room to spare, which I honestly didn't expect from a relay this small. Pairs over ZigBee in seconds and the switching has been instant with zero dropouts after three weeks.

I've been slowly converting my apartment to ZigBee and this little relay tucked behind my light switch without any fuss. It's tiny enough to fit in a shallow box, and switching my hallway light from my phone feels instant.