Functions: 12 sport modes, heart rate monitor, activity tracker (pedometer, distance, calories), sleep tracker, alarm clock, stopwatch, message notification (call, SMS, Facebook, Twitter, chat), blood pressure, music, photo, weather, waterproof IP67Sleep Monitoring and Activity Tracking: Lemonda's smart activity tracker can monitor your steps, heart rate and distance traveled every day. Monitor your sleep, record your sleep time and quality of sleep every night, help adjust your lifestyle, improve your quality of life and stay healthy. Stopwatch and alarm clock function: The support of the stopwatch function helps you to manage your time efficiently, be it at the sports meeting or while cooking. If you set the alarm time in the smartphone, the smartwatch can be an alarm clock so that you can organize your plan in everyday life.Compatibility and Long Lasting Battery: The connected watch is compatible with iOS 8.0 / Android OS 4.4 or above. Equipped with 190mAh battery life, full charge in 2.5 hours, low power consumption and long standby time, normal use is 5-7 days, standby time is 20 days. Note: Please fully charge the battery