Asus zenfone 2 is the best mobile as it has max versions of everything such as 6 GB RAM and 128GB INTERNAL STORAGE with 64 GB SD CARD slot is supported and has dual sim slots and both sim cards support 4G data .
Asus zenfone 2 should be bought because Asus always provides all android updates like marshmallow and android N . It is the best china phone ever .