New! 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. Bluetooth connectivity for easy use with Android operating systems. Its black color and comfortable wristband make it a stylish accessory to wear during workouts.