Stand out features Blood-Oxygen Saturation When engaged in long-term mental work or physical activity measures your bloody-oxygen level to keep your health in your hands. PAI Health Assessment Personal Activity Intelligence uses algorithms to convert your health data into a single intuitive score for you to understand your physical state. Sleep Quality MonitoringThe watch offers in-depth sleep monitoring to accurately determine sleep stages monitors sleep breathing providing an analysis and improvement suggestions. Stress Level MonitoringCheck your personal stress level - relaxed normal medium or high - anytime you feel pressured throughout the day so you know when to relax and reduce it. Key features 3D Curved Bezelles Design24/7 Heart Rate MonitoringBlood Oxygen MonitoringSleep Tracking Anti-Fingerprint CoatingUltra Long Battery Life Always-On DisplayThe Always-on Display enables you to view the time even when the watch’s other features are inactive keeping you aware of every important moment in your life. There are also 40+ Always-on Displays available that match our watch face designs so you can see the display you like anytime.24/7 Heart Rate MonitoringThe self-developed BioTrackerâ„¢ 2 biological tracking optical sensor in the watch can perform 24-hour heart rate monitoring. It covers heart rate zones keeping you aware of the exercise effect and provides warnings when your resting heart rate is abnormally elevated. 5 ATM Water-resistanceWith water resistance up to 50 meters the watch is on par with traditional high-end watches allowing you to wear it worry-free for daily use or while you swim.90 Built-in Sports ModesActivate one of the sports modes that you need and after the exercise is over the watch will produce a corresponding analytical report which is also viewable in the mobile app to help you continuously improve your exercise plan. Intelligent recognition of sports also eliminates the need to manually select the sports modes so the watch is always ready for action. . Extended Battery LifeWith a 471mAh battery your watch will never run out of battery no matter what you’re doing with 12 days of use with heavy usage. Compatible with the Zepp AppThrough connection to the newly upgraded Zepp App the watch enables comprehensive analysis of multiple data sources to provide 24/7 management of body data helping the user check their physical condition at any time. Some main functions include health- and exercise-data display and analysis along with smart device management.