Diversity in locked and unlocked mobile device usage
D. Hintze, R. Findling, M. Muaaz, S. Scholz, R. Mayrhofer - Diversity in locked and unlocked mobile device usage - UbiComp '14 Adjunct Proceedings of the 2014 ACM International Joint Conference on Pervasive and Ubiquitous Computing, Washington, Vereinigte Staaten von Amerika, 2014, pp. 379-384
We analyze locked and unlocked mobile device usage of 1 960 Android smartphones. Based on approximately 10 TB of mobile device data logs collected by the Device Analyzer project, we derive 6.9 million usage sessions using a screen power state machine based approach. From these session we examine the number of interactions per day, the average interaction duration as well as the total daily device usage time. Findings indicate that on average users interact with their devices 117 minutes a day, separated over 57 interactions – while unlocking their device only 43% of the time (e. g. to check for notifications).