Fitness tracker

Device or application for monitoring/tracking fitness-related metrics

A fitness tracker or activity tracker is an electronic device that measures and collects data about an individual's movements and physical responses in order to monitor and improve the individual's health, fitness, or psychological wellness over time. Many fitness trackers are similar to pedometers, but in addition to counting steps they contain additional sensors such as accelerometers and altimeters to collect or estimate fitness and exercise information, including the speed and distance travelled, heart rate, calorie expenditure, or the dura...