Asus Zenfone 5 2015 has display Size 5.0", 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 8 GB, 2 GB RAM hard disk. Back camera 8 MP is awesome, front camera 2 MP is also not bad. Zenfone 5 2015 has power storage, Up to 18 h 30 min (3G). Device status is Available