What is Activity Tracker?
An activity tracker is a device that monitors and records an individual's physical activity and fitness-related data, such as the number of steps taken, distance traveled, calories burned, heart rate, and sleep quality.
These devices can take the form of wearable devices, such as fitness bands or smartwatches, or can be integrated into smartphones or other mobile devices. They often use sensors such as accelerometers, gyroscope and heart rate monitors to track activity. Activity trackers can be used to motivate individuals to exercise more and to monitor their progress towards fitness goals. Many also have accompanying mobile apps that allow users to analyze their data, set goals, and connect with friends for social support.