There are some activities that cann

There are some activities that cannot be detected reliablyusing a smartphone in the jeans’ pocket position alone, becausethey mainly involve hand movements. Some of the examples ofsuch activities are smoking, eating, writing, typing, drinking acup of coffee, and giving a talk or presentation. These activitiescan be recognized by using a wrist-worn device, because ofthe various hand movements involved in these activities. Suchhand movements can provide us with information that can beused either alone or in combination with the sensor informationfrom the pocket position to detect different contexts, forexample, having a cup of coffee while sitting. Various well-being applications can utilize this extra context informationfor detecting bad habits and giving a better context-awar