This study aims to provide theoretical support related to the interrelationship among perceived price fairness, brand equity and purchase intention in the smartphone industry. In particular, this work presents a better understanding of the effect of gender as a moderating variable on the relationships among these factors for the iPhone brand. The mediated moderated model was evaluated by applying Covariance-based SEM through data collected from 368 Vietnamese respondents who have used or know of the iPhone smartphone brand. The results indicate that: perceived price fairness has significant, positive and direct effects on brand equity; purchase intention is positively impacted by perceived price fairness and brand equity; brand equity plays a mediating role in the indirect effect of perceived price fairness on purchase intention; and the impacts of perceived price and brand equity on purchase intention are different for men and woman, with these effects stronger for female customers than for their male counterparts.