Allview Impera S has display Size 5.0", operating system Microsoft Windows Phone 8.1. The device has ram 1 GB too, card support is microSD, up to 32 GB, it has 8 GB, 1 GB RAM hard disk. Back camera 8 MP is awesome, front camera 2 MP is also not bad. Impera S has power storage, Up to 8 h 20 min. Device status is Available