What Factors Contributed to the Success of Apple's iPhone?[7]. John Laugesen and Yufei Yuan defined a set of success criteria to observe the success of the iPhone and present a comprehensive success model [7]. Jutarak Kunasakpanich studied factors affecting the selection of the smart phone between iPhone and Backberry of Rangsit University students during August to September 2012 [8]. 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.