This study aims to examine and analyze the effect of product quality, promotion and brand awareness on purchasing decisions of OPPO brand smartphones among students in Purwokerto City. The sample selected using purposive sampling, based on the criteria obtained 110 respondents. This study uses the SPSS test tool, the research method used is validity test, reliability test, classic assumption test, multiple linear analysis, coefficient of determination, f test and t test. The results showed that: 1) product quality has a positive and significant effect on purchasing decisions, 2) promotion has a positive and significant effect on purchasing decisions, 3) brand awareness has a positive and significant effect on purchasing decisions