Samsung Galaxy S4 specs are out and are 99% valid. new screenshots from the U.S variant of the Samsung Galaxy S4 has confirmed that the phone would indeed come with a 5-inch Full HD (1920×1080 pixels). These also reveal that it would be powered by a 1.8 GHz quad-core processor and come with 4G LTE support.
Samsung Galaxy S4 will have a 13 MP camera and have Burst Shot and Anti Shake camera features.There are rumors of phone having a 2Mp front facing camera as well for all your video chats , and the phone is expected to come out with Android 4.2.2 (Jelly Bean).
Source - gsm-israel