Best 4 inch Cell Phones - ~Android.*|.*iPhone OS.*|.*Windows.*|BlackBerry.* Operating System, 158 to 32768 MB Installed Memory, WAV ringtones Multimedia Features, Integrated FM Radio Phone Features, aGPS GPS Capability, IM Messaging Formats, false Locked, Super AMOLED capacitive touchscreen Screen Type, 0 to 0.65 in. Depth