Android 4.0, 16GB Internal Storage, 4.52" Super AMOLED Touchscreen, Front Facing Camera, T-Mobile Service Only in the US. Samsung Galaxy S2 details and information - Amazon Sales Rank: #5401 in Cell Phone Accessories - Color: black - Brand: Galaxy S4 - Model: SGH-T989 - Dimensions: 2.00 pounds Samsung Galaxy S2 T-mobile Sgh-t989.