Hey I buy this mi 4i cell. amaizing result of camara. compare to others. I didnt use zenphon or other but. I think great quality of picture. other is heatting problem, still I didn’t face that, Bcoz I play clash of clan every time. if some one want to buy, they have to think about this . dont compare with lenovo k3.
other the main thing is memory card slot, they have to give and imporve we can move every where with pen drive and otg cable.etc. and sound is low. compare to other. if your cell is in other room, you can not attend that call.
but in 5 start I will give 4.5. as compare to price and screen quality.