Galaxy S4 a 4.3-inch Super AMOLED display with 540x960 pixels. 1.6GHz dual-core processor and 8GB of storage expandable via microSD card. The 16-megapixel rear camera with 10x optical zoom and a 1.9-megapixel front facing camera. Bluetooth 4.0LE, Wi-Fi 802.11a/b/g/n, A-GPS connectivity options and a 1900mAh battery.2GB of RAM and run Android 4.2 Jelly Bean.