Fitbit’s are wearable devices that individuals can use to track their daily physical activity and increase motivation to do physical activity. Fitbit devices offer real time data on various aspects of daily life including number of steps taken, energy expenditure, time spent asleep, and time spent in different levels of activity. Fitbit devices are becoming increasingly popular in the health-conscious consumer public; they are also being used more frequently in research as measurement tools and to inform healthcare decisions. But are they accurate?
A team of researchers at Arthritis Research Canada and the University of British Columbia, lead by Dr. Lynne Freehan, recently conducted a study to find out how accurate Fitbit devices are as measurement tools. Currently, several devices exist that have been identified as a “research standard” for activity tracking. In this review, researchers measured Fitbit’s accuracy by comparing the readings to that of the research-grade devices.