I have been using this phone from last one month and belive its the best phone on this budget. As you ask about the sound quality is awsome, as loud as u expect from a gud smart phone and smooth as well. its quite compitable in its holding with impressive out body. Its a complete package of a best u can get in terms of style and design u consider.
Entire feature of this phone is awsome in ters of picture quality, selfie and in gaming. you can blindly go for it.