Potentially me, but this time not.

My criteria is heavy on "do one thing well". I want something without internet, "apps", a convoluted OS, and basically all the other things that make phones a Swiss army knife.

Those things aren't free, they come with a cost which I'm not willing to pay; attention, bugs, distraction-as-a-service. Also, I'm not 100% on this because I haven't tested it, but I think the output I get from FLAC files on my music device is better than my phone.

Yes, I'm also the type who enjoys a separate camera.

There's a piece of mind to dedicated devices I was robbed of for a while with the the phone.

Now having said all this, the real answer to your question is; nobody, because this device seems to be a phone :/