As smart technologies are advanced, interactive products are being more and more developed like person to person interaction than person to product interaction. More attention has to be paid to product attachment because interactive products are designed as human agent. However, few studies have been conducted to address the interaction between user and product based on interpersonal relationship. Therefore, this study attempts to figure out what user’s attachment to interactive products can be formed and how the findings could help design practitioners increase user’s well-being. As a first step of the study, literature review was conducted. According to that, studies on product attachment have focused on the determinants of product attachment. However, there are four different attachment types in psychology. It was also found that attachment is a contributor of people’s well-being. Based on the findings from literature, this study discusses the contributions of the study and followup studies.