The Honeywell T6R is a connected, wireless thermostat that works with both ... T6R needs to be plugged into the mains - there's no battery power option, for example. The Honeywell Lyric app ...

"My standard thermostat already ... latest in a long line of smart connected devices from the highly-regarded Honeywell with wired (T6) and wireless table-top (T6R) versions available.