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Beyond Self-Report: Tools to Compare Estimated and Real-World Smartphone Use

Fig 1

Barcode of smartphone use over two weeks.

Black areas indicate times where the phone was in use and Saturdays are indicated with a red dashed line. Weekday alarm clock times (and snoozing) are clearly evident.

Fig 1

doi: https://doi.org/10.1371/journal.pone.0139004.g001