This device from the chinese manufacturer is execllent.
It has got all the features for u to be smart.the 13 MP rear and the 2MP front camera is all what tou need to capture tour moments. The large battery backup makes it easy to use it for all day long once charged fully. The sensor are queit good in this prive tag.Although Moto offers a better fingerprint sensor.
The Miui Os aling with android 5.0.1 android OS gives you a quiet good interface.There is only 1 or 2% battery draining if kept on standby for whole night.
although I am using this device for 7 months , after falling so many times it has just got some minor scratches. The built in quality thus is very good. Its comes with high performing snapdragon chip.
Overall the device is good.