Wearing the eco-friendly and lightweight band on your wrist, you will be offered with activity tracking, sleep monitoring and more smart features to ease your life. Collaborated with the professional research institute CISS, HUAWEI Band 4e provides you with detailed running form analysis and suggestions based on the comprehensive statistics so you can improve the running efficiency and reduce the risk of injury. With the feature of water resistant up to 50 meters, HUAWEI Band 4e is the companion you can take during sweating workouts, surfing or swimming.