This phone redmi 4 is an excellent mobile I have ever seen.The first time I asked my dad to get me a mobile, he asked me choose one myself.I did a lot of research about the smartphones available online and atlast I found the one which suits my requirement and budget.This phone has 15 mp camera, that is really awesome.The only thing I hate about this mobile is that, the first time, I opened the camera, it started detecting my age and it was showing like 30, when I was in a dark room and then when I came to light, it showed like 20.It was a really disgusting moment for me.Because who wants a default setting of judging their age, that to more greater than our age.To say about the battery I has a quite good battery life when compared with other android phones.And the to say about the sound, its audible when you make calls, but if you are the one like me who often hears song that too fast beat songs at a loud volume, I wouldn’t prefer you this mobile.The design and style are outstanding.