apple iphone x, us version, 256gb, space gray - at&t (renewed) apple the iphone 8 is the first smartphone by apple made exclusively of durable glass front and back, engineered to endure dust and water splash. it is powered by the 64-bit “apple a11 bionic” processor and has two internal storages available: 64 gb or 256 gb of flash storage. it features a 4.7-inch widescreen multi-touch ips display (“retina hd”) and dual cameras – a back 12-megapixel 4k camera with optical image stabilization and a front 7-megapixel “facetime hd” camera with 1080p video support.