Wearable devices track health and fitness metrics by incorporating sensors that monitor various physiological parameters. These devices, like smartwatches and fitness trackers, can measure data such as heart rate, steps taken, and sleep quality. Through integrated GPS and connectivity features, they provide real-time feedback and insights regarding physical activity and overall health. Many wearables sync with mobile applications, allowing users to visualize their data and set achievable fitness goals. This technology encourages users to adopt healthier lifestyles by promoting awareness and accountability, making it easier to track progress and maintain fitness regimens.