What do you mean by 'music on your phone'?
If you mean the streaming services on your phone, they have the wi-fi input.
If you're talking about music stored on your phone, sent to your WiiM, then that's the Bluetooth input.
No, it’s not Bluetooth. I’m talking about tracks that you have stored on your phone which appear under the My Music category on the WiiM app Browse tab.
Arguing that something is out there, and you want to listen to it, but it's not an 'input' is, as I've noted, complete semantics.
I wouldn’t say it’s semantics when we’re talking about the Input section in the WiiM Home app