In [8], Jutarak Kunasakpanich studied factors affecting the selection of the smart phone between iPhone and Backberry of Rangsit University students during August to September 2012. Out of 25, 424 students, only 400 students were used as the subjects for this study. The result found that iPhone is popular than BlackBerry. For Blackberry, the most influential factor is the price, the distribution channel is second high and the social factor is the lowest. For iPhone, the most influential factor for iPhone selection is a brand itself. The product factor is second high
and the social factor is also the lowest.