This study seeks to answer whether digital devices influence habitual running and explores the kinds of conditions in which these devices are effective, as well as the underlying reasons. A mixed methods approach was used to collect and analyze the data. The quantitative research investigated the moderating effect of digital running device usage on the relationship between running involvement and commitment. A qualitative study was conducted to better understand the results of the quantitative research. This study found that both recording and SNS participation functions take effect, depending on how they are used and by whom. The interaction between digital running devices and runners is complex and even contradictory. The results provide greater understanding about the impact of digital technology in leisure and extend previous studies in serious leisure research.