Asus Zenfone Zoom 2015 has display Size 5.5", operating system Android 5.0, up to 6.0; ZenUI. The device has ram 4 GB too, card support is microSD, up to 256 GB (dedicated slot), it has 32/64/128 GB, 4 GB RAM hard disk. Back camera 13 MP is awesome, front camera 5 MP is also not bad. Zenfone Zoom 2015 has power storage, . Device status is Available