This study aimed to investigate whether data collected from smartphone sensors could serve as indicators of mental health. It involved 47 participants, primarily undergraduate and graduate students of Dartmouth College in the United States, aged 19 to 30, recruited through class announcements. Over a 10-week period, participants were provided with smartphones equipped with various sensors to track geospatial and kinesthetic activity, sleep patterns, and proximity to human speech, while also completing daily stress ratings and pre- and post-measures of depression and stress levels.