Thanks for your impressions so far. Do you know if it is possible to run the (Chinese?) version internationally, so with US/UK language?
Maybe @FiiO can tell?: Will there be different versions of the X5III for different regions?
Maybe I can get myself one from China.
FiiO hasn't made any regional specific DAP yet, so there is very unlikely they will do that anytime soon, given there isn't any good reason to do so. Language is selectable in the Android setting, which is more of a Google thing and not really a FiiO thing. The only real difference will be that the Google service apps are likely not going to be included in the Chinese X5III (as China government blocks all Google service anyway). However, you can easily ask FiiO to send you a copy of their international firmware that do include all the Google service apps and update the firmware manually.