Table 8. Source of the health-related data.

Components of mobile device used for sensing	No of studies	Low level features	High level behavioral makers
GPS (Global Positioning System), Bluetooth, Wi-Fi	43	Movement intensity, Location	Hedonic activity, Stress, Social avoidance
Accelerometer	32	Activity type, Movement intensity	Psychomotor activity, Fatigue, concentration/Distractibility
Gyroscope	8	Movement intensity	Hedonic activity, Stress
Microphone	6	Paralinguistic information, Acoustic environment, Bedtime/Wakeup time	Depressed mood, Stress
Camera	4	Pictures	Social avoidance
SMS & calls	13	In phone social activity	Social avoidance, Depressed mood
Others (Ambient light, phone screen (On/Off)	9	Acoustic environment, Bedtime/Wakeup time	Depressed mood, Stress