In order to know what is the promotion that people tend to purchases a smartphone in which store and what is the reason that they choose, I have to collect this research. By my respondent said that a smartphone with special price promotion is attracting them the most. And they like to make a purchases with wholesaler store like AIS Shop and Truemove shop more than retailer store like BananaIT. And they said the reason they chooses because there are a lot of promotion, reliable, convenience and good service