Samsung Galaxy S4 Mini GT-I9192 GSM Factory Unlocked Dual Sim - 8GB (Black Leather) Samsung Galaxy S4 Mini Duos Black Edition borrows the faux leather back of the Galaxy Note 3 GSM 3G support GSM / GPRS / EDGE (850 / 900 / 1.800 / 1.900 MHz) support HSPA+ (850 / 900 / 1.900 / 2.100 MHz) support qHD sAMOLED Technology 16 M Color Depth 4,3" Size 540 x 960 (qHD) Resolution 1,9 Megapixels Camera Resolution (Front) 8 Megapixels Camera Resolution (Rear) Power LED Flash Android JB 4.2.2 support