Zenfone 5 is the best smartphone below ten thousand I have used. I am using this phone about three years, it doesnt have any complaints and it has two GB Ram so, it doesnt hang, I used to play games .The phone works in android Kitkat. The merits of this mobiles are it has a good camera and attractive and useful file manager. It is very handy and stylish. The demerits of this phone are it doesnt have good battery life, if we play games or watching videos phone will go to off soon. Another problem is over heating, sometimes it is like an iron box. It is difficult to upgrade to lollipop from this phone. Even though it has these problemss it is a best phone of asus.