Zigbee with its meshing is extremely reliable in pretty much all home setups I could think of. It works quite a lot better than Wi-Fi or Bluetooth. Therefore I

Zigbee with its meshing is extremely reliable in pretty much all home setups I could think of. It works quite a lot better than Wi-Fi or Bluetooth. Therefore I am not sure it is actually needed to have a separate physical protocol which can only be accessed by smart sockets (and maybe also smart bulbs, though I'd think you need to have all of those on the same power phase first). It would work better in, I don't know, warehouses? Where the distance to the next device becomes too large.