Samsung Galaxy S7 has display Size 5.1 Inches, operating system Android 6.0, up to Android 8.0; TouchWiz UI. The device has ram 4 GB too, card support is microSD, up to 256 GB (uses SIM 2 slot) - dual SIM model only, it has 64 GB hard disk. Back camera 12 MP is awesome, front camera 5 MP is also not bad. Galaxy S7 has power storage, Up to 22 h (3G). Device status is Available