Zte Nubia Z9 Max has display Size 5.5", operating system Android 5.0.2; nubia UI 2.8. The device has ram 3 GB too, card support is microSD, up to 256 GB (dedicated slot), it has 16 GB, 3 GB RAM hard disk. Back camera 16 MP is awesome, front camera 8 MP is also not bad. Nubia Z9 Max has power storage, . Device status is Available