Smart Ring Fitness Tracker Health Heart Rate, Oximetry, Sleep, Exercise Monitoring, Compatible with iOS and Android (Black) (10#)

【Smart Sleep Analysis】Real-time monitoring of sleep movement, and transmission and recording in the App, including sleep duration, deep sleep duration, light sleep duration, awakening duration, and so on., bringing you better sleep suggestions!
【24/7 Heart Health Monitoring】As a professional heart health consultant, the smart bracelet is equipped with a high-precision and high-performance heart rate sensor, which can as it should be acquire data and monitor your heart activity around the clock.
【Movement Data Monitoring and Recording】Real-time monitoring of your quite a lot of movement data, the number of steps in a day, the distance of movement, calorie consumption, and the trend of movement changes in a day, view it on your phone anytime, anywhere!
【Excellent Waterproof Performance】Medical grade stainless steel shell material, lighter and harder, to be had in black and gold color. More IP68 waterproof, you’ll wash your hands, take a bath, swim. No worries!
【Professional Grade Ultra-Precision Sensors】Acceleration Sensor, Optical Heart Rate Sensor, Optical Blood Oxygen Sensor, and Infrared Sensor work at the same time, comparable to professional devices!
【Free App】Smart bracelet health tracker data may also be viewed on the mobile app for free without any subscription fee. The device supports Android 5.1 and iOS 8.0 and above.
【100% After-sales】 If you encounter any problems right through the use, please contact us through Amazon message in time. We will be able to reply within 12 hours. We will give you a full range of technical fortify!