Best Cell Phones - ~Android.*|.*iPhone OS.*|.*Windows.*|BlackBerry.* Operating System, Predictive text input Other Features, 114 to 246 ppi Pixel Density, Quad-core 2.26 GHz Krait 400 Processor Type, aGPS GPS Capability, IM Messaging Formats, true Locked, 0 to 0.65 in. Depth