There were 400 samples from total 25,424 students. The result found that iPhone is popular than BlackBerry. For iPhone, the most influential factor for iPhone selection is a brand itself. In [9], Saranya Ruensri studied the behavior choice to buy mobile phone between blackberry and other mobile phones of students in Chiang Mai University. The information was of primary source coming from questionnaire
interview of 400 samples from total 24,592 students during May 2010. It was found that functional capacity of the product factor is the most influential factor.