Being a xiaomi fan boy I bought mi4 firstly to talk about design its the best from ever. Secondly the display its totally brilliant more then when u expect in this range full hd with 441ppi totally crip and cler display. Then comes the camera rear with 13mp sony sensor I very much satisfied with daylight images.colours saturation white levels are good with fast autofocus but in low light camera is not upto its mark.
Images comes to be noisy wet ok. Now comes performance it can play any game available in playstore with breeze if u feel its getting strained turn on the performance mode its hidden power performance will bumped up.and finally with 3080mah battery and miui 7 whivh is breeze to use u can get full day battery backup with 3g