Portable DAP players all see to be heavy/expensive/not very good. Increasingly they're Android based. For my purposes, any device which provides aptx-hd to drive bluetooth headphones will suffice for when I'm out and about, or at work. At home, though, I want something I can connect to my DAC via USB. Currently I'm using an Honor Play phone and it sounds pretty good to me (using UAPP so as to avoid Android resampling the output). I'm curious how it compares with more expensive devices, and when it eventually dies (after less than 18 months on the market the manufacturer has decided not to humour any more OS upgrades, but that's Android for you) I'll need something else (probably an Android One device as they seem to tick both the "will get updates quickly and for a while" and "inexpensive" boxes). Is the quality of output of PCM data via USB to an external DAC more or less perfect and identical across all Android devices, given that the phone is little more than a FLAC to PCM converter for these purposes, so I should just get whatever phone I can justify paying for, or is there a world of scope for implementation fails here?