The smart remote works through the home hub and both of them require an internet connect in order to function.
Does Harmony Hub Work Through Walls. Control your home from your ios® or android™ smartphone. Logitech harmony hub setup and configuration guide.
Logitech Harmony Elite review: I’m finally living the ... from cdn.arstechnica.net
Update to accessing harmony hub's local api via xmpp. I can control lutron lights from the harmony. My harmony hub controls everything fine with remote or app.
The back of the hub has some 2.5mm inputs.
Control devices behind cabinet doors and walls. My harmony hub controls everything fine with remote or app. The harmony hub's interaction with my lutron ra2 select lighting control hub was also laggy. Update to accessing harmony hub's local api via xmpp.
