Nokia Lumia 635 - 8GB Windows Smartphone - AT&T - Black (Certified Refurbished) This Certified Refurbished product is factory refurbished, shows limited or no wear and includes all original accessories plus a 90-day warranty Beautiful 4.5 inch ClearBlack, IPS LCD Display 480x854 resolution 221 ppi 8GB storage - 512MB RAM 5.0 MP Camera with 720p HD Video and Autofocus 1.2 GHz MSM8x26 Quad core Processor