I really think the HTC 10 would be a good option. I have not heard it live but they seem to be quality.

I have a nexus 6 and, yes, it matters which android phone you get. I can not get my external USB dac to work. Additionally, my high res flacs get converted to 16 bit. It's quite frustrating. It's why some day I will get a ZTE axon 7. I want a phone and dap without limitations.