Mi2 prime this mobile has 2gb ram and 16 gb rom mi mobile one best point is .this phone is internal security is best when you create miui account then your mobile is secure only you can format on your mobile mi mobile one more best feture is this mobiles hidden mode you can hide anything picture , movie, videos, etc and many more things . Mi2 prime mobile camera is good front camera is 2mp and back camera is 8mp so this picture quality is very good.mi2prime support 4g then we will not only use voice call but also we can chat with video call .this feature is use full for any one relative live in other country or state so good mobile