Fitness trackers are wearable devices or mobile applications designed to monitor and track various aspects of physical activity, exercise, and health metrics. These devices typically incorporate sensors such as accelerometers, gyroscopes, heart rate monitors, and GPS to collect data on steps taken, distance traveled, calories burned, heart rate, sleep patterns, and more. Fitness trackers provide users with real-time feedback on their activity levels and help them set and achieve fitness goals by providing insights into their progress and performance. Many fitness trackers also offer additional features such as activity reminders, workout tracking, GPS navigation, and social connectivity to share progress with friends or compete with others. Some advanced fitness trackers may also include features like blood oxygen saturation monitoring, stress tracking, and guided breathing exercises. Overall, fitness trackers are valuable tools for individuals looking to improve their overall health and fitness by staying motivated, accountable, and informed about their activity levels and lifestyle habits.