In developed nations, the digital age has been characterised by increasing accessibility and use of digital devices for both leisure and work, with a rapid diversification of devices, modes of engagement, and functions in the contemporary lives of youth. Entertainment or leisure technology use can be characterised by many complex issues for young people, but one receiving increasing research interest is striking an optimal balance in overall usage for wellbeing. While leisure media can have recuperative, learning and social benefits, it also has potential to displace other activities necessary to positive development. Presently, most studies focus on relationships between screen time and physical or mental health, but, with the occasional exception of social functioning, rarely consider broader aspects of wellbeing evident in the Positive Psychology literature. A survey of over ten-thousand Australian youth investigated relationships between overall leisure screen time and multidimensional aspects of wellbeing, including the PERMA model, Self-Determination Theory and physical health indicators. This presentation first details demographic correlates of leisure screen time. Secondly, relationships between screen time and outcomes are reported and supported with theoretical explanations. Finally, the possibility of a curvilinear relationship between overall screen time and wellbeing will be considered.