Apple iPhone 6s a1633 128GB Space Gray Smartphone at&T (Refurbished) A Certified Refurbished product has been tested and certified to work and look like new, with minimal to no signs of wear, by a manufacturer or specialized third-party seller approved by Amazon. The product is backed by a minimum 90-day warranty, and may arrive in a generic brown or white box. Powered by A9 processor with 64 bit, M9 Motion Chip. 4.70-inch touchscreen display with a resolution of 750 pixels by 1334 pixels at a PPI of 326 pixels per inch. 12-megapixel primary camera on the rear and a 5-megapixel front shooter for selfies. 128GB of internal storage cannot be expanded "A Certified Refurbished product has been tested and certified to work and look like new, with minimal to no signs of wear, by a manufacturer or specialized third-party seller approved by Amazon. All products are backed by a minimum 90-day warranty."