For the treatment of smartphone addiction, it is important to understand users' smartphone usage patterns. Most of the studies are based on self-report surveys. However, there are differences between self-reported usage and real usage. For a better understanding of usage patterns, this study identified demographic and social factors that affect smartphone usage self-report levels. Also, it was confirmed that the influencing factors differ depending on the smartphone usage content by application category.
Keywords: Data Accuracy; Self Report; Smartphone.