I am using the
Sony Xperia 5 III since October '21 and I'm very pleased with it. Battery is great, phone is quick and responsive and the camera is good. Most relevant for this forum: The sound is good. This includes standard commuting blue tooth (LDAC) connection with Sony WHs or WFs but also wired connection with HD files, including DSD, using the Sony Music app. But also, and this is important to me, with UAPP. To my ears, the UAPP DSD output quality is identical to the Sony Music app quality which seems a confirmation that UAPP's "Hires direct driver" does the trick for the mark III too.
I do have DAPs and dongles but leaving them at home and, instead using the phone for some quality listening with wired IEMs, is a good experience. Moreover, I can't complain about hissing with sensitive IEMs - I don't hear any. And finally adding a small amp leaves me with nothing to desire on the go.
To me, the fact that the X 5 III has a jack was only prio #4 - after #1 form factor, #2 battery and #3 camera. But I'm really happy with its sound, listening to it right now.
Before I forget: My one complaint would be that its blue tooth seems less reliable than e.g. Samsung's or Apple's. Not a disaster but in crowded areas a quick 1s disconnect can happen sometimes. (Of course it could be my setup and not the phone. I yet have to find out)
