Samsung S4 is a touch-screen based Android smart phone that is designed and developed by Samsung. This amazing phone features a 4.8 inch HD Super AMOLED display and a resolution of 1280x720 resolution, quad-core 1.4GHz processor, 8 Mega pixel Auto Focus camera, S voice, NFC Chip and Bluetooth etc that is based on latest Android 4.0 (Ice cream Sandwich).