Samsung Focus S I937 has display Size 4.3 Inches, operating system Microsoft Windows Phone 7.5 Mango. The device has ram 512 MB too, card support is No, it has 32 GB hard disk. Back camera 8 MP is awesome, front camera 1.3 MP is also not bad. Focus S I937 has power storage, Up to 6 h 30 min. Device status is Available