Samsung Galaxy S4 GT-I9500 Factory Unlocked Cellphone, 16GB, White DISPLAY: Super AMOLED capacitive touchscreen, 16M colors.1080 x 1920 pixels, 5.0 inches (~441 ppi pixel density).Corning Gorilla Glass ,3TouchWiz UI. CAMERA: 13 MP, 4128 x 3096 pixels, autofocus, LED flash (Primary),2 MP,1080p@30fps, dual video call(Secondary).Dual Shot, Simultaneous HD video and image recording, geo-tagging, touch focus, face and smile detection, image stabilization, HDR.1080p@30fps, dual-video OS: Android OS, v4.2.2 (Jelly Bean) CPU: Quad-core 1.6 GHz Cortex-A15 & quad-core 1.2 GHz Cortex-A7 GPU: PowerVR SGX 544MP3 Unlocked cell phones are compatible with GSM carriers like AT&T and T-Mobile as well as with GSM SIM cards (e.g. H20, Straight Talk, and select prepaid carriers). Unlocked cell phones will not work with CDMA Carriers like Sprint, Verizon, Boost or Virgin. 16 GB Storage Capacity (Estimated Free Space 8.56 GB)