The M8 Smart Band 8 Health and Fitness Tracker is a sleek and reliable device designed for unisex adults who want to track their health and fitness. With a battery life of up to 4 days of workout time 45 days of stand by time and a variety of features such as heart rate monitoring, sleep tracking, and exercise logging, this activity tracker provides comprehensive data for running and jogging activities. The Smart Band 8 also comes with a 2-year manufacturer warranty and Bluetooth connectivity for easy use with Android operating systems. Its black color and comfortable wristband make it a stylish accessory to wear during workouts.