from "
https://www.harmony-remote-forum.de/viewtopic...."
Hi friends,
Since Logitech is once again confusing us with the model names of its hubs, I'll try to clarify this briefly and concisely:
Harmony Hub:
This can only be set up and used via the SmartPhone app. It supports a maximum of 8 devices.
Harmony Ultimate Hub:
This can be used as an extension for a Harmony Touch/Harmony Ultimate One. It supports a maximum of 15 devices.
And then there's the (available in the USA)
Harmony Home Hub Extender:
This is an extension of an existing Harmony Ultimate Hub and adds ZigBee and Z-Wave to the home control.
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Hope it helps. It used to be my problem too. LG HV