Heart Rate & Sleep Monitoring--- Your heart health counts It helps to know your heart status better during workouts.The smart watch tracker monitors your heart rate 24/7, providing you with all-day care. The smartwatch also monitors & records your sleep status automatically, providing a comprehensive analysis of your sleep quality (deep sleep, light sleep, and wake up time) to help you develop a healthier lifestyle.Explore Multiple Sports Modes with 3ATM Waterproof--- built-in multiple sports modes, can help you fitness: Walking / Running / Climbing / Swimming / Biking. You can record and view real-time data during exercise. The fitness watch is IP67 waterproof so you do not need to be careful of water. (Note: it cannot track your swimming data)Your Multifunctional Fitness Companion---Smart watch features with many practical functions, such as weather,blood/oxeygen monitor,heart rate monitor,sleep monitor,shake to take pictures,call/message reminder,pedometer,calories,sedentary reminder,raise your hand and bright screen,multi sports,raw ear switch controlled. Its compatible with smart phones of Android 4.4 / iOS 8.0 and above systems , and Bluetooth 4.0 and above .All-day Activity Tracking---Accurately record all-day activities like steps, distance, calories burned, miles walked, active minutes, sleep status and more. Stay motivated all day Smart Reminder---After connecting your phone and smart watch Bluetooth, the smart watch will vibrate to remind you of incoming calls, SMS and SNS messages (Facebook, Twitter, Instagram, Skype, Whatsapp, Linkedin, Messenger, etc.) No phone calls or text messages will be lost.