Xolo Win Q900s has display Size 4.7", 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. Win Q900s has power storage, Up to 23 h (2G) / Up to 14 h (3G). Device status is Available