Asus Zenfone 6 has display Size 6.0", operating system Android 4.3, up to 5.0.2. The device has ram 2 GB too, card support is microSD, up to 64 GB (dedicated slot), it has 16/32 GB, 2 GB RAM hard disk. Back camera 13 MP is awesome, front camera 2 MP is also not bad. Zenfone 6 has power storage, Up to 28 h (3G). Device status is Available