12MP primary camera with auto focus, 4K video recording, flash and 5MP front facing camera 5.5-inch (13.97 centimeters) Retina HD 3D-touch capacitive touchscreen with 1920 x 1080 pixels resolution and 401 ppi pixel density iOS v9 operating system with A9 chip 64-bit architecture processor, 2GB RAM, 16GB internal memory and single nano SIM Lithium-ion battery providing talk-time of 24 hours on 3G networks and standby time of 384 hours 1 year manufacturer warranty for device and 6 months manufacturer warranty for in-box accessories including batteries from the date of purchase