Samsung Galaxy A3 Duos has display Size 4.5 Inches, operating system Android 4.4.4, up to 5.0.2. The device has ram 1 GB too, card support is microSD, up to 64 GB (uses SIM 2 slot), it has 16 GB hard disk. Back camera 8 MP is awesome, front camera 5 MP is also not bad. Galaxy A3 Duos has power storage, . Device status is Available