GSM Unlocked Phones are ONLY compatible with GSM carriers like AT&T and T-Mobile as well as other GSM networks around the world. They WILL NOT WORK with CDMA carriers like Sprint and Verizon (Search for inFully Unlocked iPhonesin for CDMA compatible iPhones).
Apple A10 Fusion chip with embedded M10 motion coprocessor
12-megapixel primary camera on the rear and a 7-megapixel front shooter for selfies.
4.7-inch touchscreen display with a resolution of 750 pixels by 1334 pixels at a PPI of 326 pixels per inch