Track your fitness with the Smart Sport Fitness Watch! This watch features a 90 mAh battery that charges in around 2 hours and can last for up to 4 days. This D18 smart bracelet watch has multiple sport modes such as basketball, walking, climbing, table tennis, badminton, football, cycling so it is ideal for use during sports. It has sleep monitoring, blood pressure, and heart rate monitoring functions. Message reminder - no need to check your phone as this smart watch will notify you on your messages!