The asus zenfone 4 selfie is a excellent mobiel comparing to all mobiles in that price. And the performance of the mobile such as front camera and back camera was pretty good and it tooks only two hours to complete charge and the battery back up long lasts up to 1.5 days and also the two sims have volte support and there is no heating issue even if we use the phone for hours continuously and also the other features like multi window option and one hand mode and finger print and double tap which gives some more intrest to buy this mobile. and overall the performance is awesome and worth for the price.