Apple iPhone 6s Plus a1634 128GB Space Gray Smartphone at&T Unlocked (Refurbished) This Certified Refurbished product has been tested and certified to work and look like new, with minimal to no signs of wear, by a 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. Accessories may be generic and not directly from the manufacturer. 5.5-inch touchscreen display with a resolution of 1080 pixels by 1920 pixels at a PPI of 401 pixels per inch. Powered by Apple A8 processor 12-megapixel primary camera on the rear and a 5-megapixel front shooter for selfies. 128GB of internal storage cannot be expanded