Reflective smartphone disengagement (i.e., deliberate actions to self-regulate when and how one should use one's smartphone) has become a necessary skill in our ever-connected lives, contributing to a healthy balance of related benefits and harms. However, disengaging from one's smartphone might compete with impulsive psychosocial motivators such as fear of missing out (FoMO) on others' rewarding experiences or feelings of loneliness. To shed light into these competitive processes, the present paper disentangles the reciprocal, over-time relationships between reflective smartphone disengagement, FoMO, and loneliness using data from a two-wave panel study among emerging adults (16-21 years of age). Measurement-invariant structural equation modeling suggests that FoMO and reflective smartphone disengagement negatively predict each other over time, indicating a possible spiraling process. In addition, reflective smartphone disengagement was also negatively related to feelings of loneliness. Together, these findings underline (a) how young people's impulsive and reflective system compete with each other over control of their smartphone usage, where (b) psychosocial benefits of reflective smartphone disengagement were validated among emerging adults, potentially helping them to strengthen the benefits and limit the harms of permanent interactions with and through technology.
Keywords: fear of missing out; loneliness; mindfulness; reflective smartphone disengagement; smartphone.