Smartphone mobile phone series blackberry bold display size 28 inch display resolution 640 x 480 pixels display type tft touchscreen capacitive pixel density 2857 ppi ram 075 gb internal memory gb 8 gb max memory expansion 32 gb processor manufacturer qualcomm processor type snapdragon s2 processor core 1 cpu clock speed 12 ghz memory cards microsd microsdhc sensor magnetometer location service gps audio feature voice recognition ava