18 Sport Modes & Scientific Sleep This fitness watch supports 18 sport modes such as run, fast walk, pool swim, open water, climb, cycle, etc. Accurately monitor your daily activities like steps, calories burned, distance, HR, etc. Scientific sleep function helps you analyze your sleep status through recording deep sleep, light sleep, REM sleep and awake time from 8pm to 9am the next day. 24/7 HR Monitoring & Arrhy-thmia Monitoring The smart watch will automatically track and record your real-time heart rate with advanced sensor. You can check the HR graph both on the watch and the App. Arrhy-thmia monitoring will form a scatter plot to help you know more about your heart health. Music Control & Blood Oxygen Monitor Simply tap the watch to play or pause music and switch songs after successfully connected. Turn on the SpO2 function on the activity tracker, it will detect your real-time blood oxygen. Not for medical purpose, all monitoring data is only for reference. IP68 Waterproof & Smart Notification Waterproof fitness tracker allows you to wear it when swimming, washing hands and on rainy days. Sweatproof watch helps you not need to worry about taking exercises. The watch will vibrate to notify you about phone calls, text, SMS text and SNS (Facebook, LinkedIn, Instagram, Twitter, WhatsApp and other apps) notifications. This tracker can store the latest 8 messages which allow you to check them conveniently. More functions & Compatibility Personalize your dial and make it different. Sedentary reminder, stress test, alarm clock, stopwatch, timer, compass, easy camera. The Zeroner Health Pro app is suitable for smart phone & iPad, compatible with Android 4.0 or iOS 8.0 and above. Support multi-language: English, Spanish, Portuguese, German, French, Japanese, Italian and Chinese.