Smart Wearable Fitness Tracker, Sleep Tracker Ring, Healthy Heart Rate, Oximetry, Sleep, Exercise Monitoring, 5ATM Waterproof for iOS and Android (Deep Grey, 11#)

【Size Before You Buy】Please according to the wearing instructions on the details page, first measure your finger circumference, then calculate the inner diameter of your finger, find the corresponding ring size number and select it.,【Sleep Monitoring and Sleep Score】It is designed to help you understand the various stages of sleep such as deep sleep, rapid eye movement sleep, light sleep and wakefulness, where different metabolic processes occur in the body to promote growth, repair, recovery and maintenance.,【Smart Health Ring】As a professional heart health consultant, the Smart Ring is equipped with high-precision, high-performance heart rate and oxygen saturation sensors to accurately acquire data and monitor your heart activity 24/7. The smart ring will intelligently analyze the relationship between your activity and heart rate. Get a comprehensive understanding of your physical condition.,【Various Exercise Modes and Fitness Tracker】The smart health ring tracks your activities throughout the day with high precision. For example, the Fitness Ring tracks your steps, distance walked and calories burned. In addition, the Smart Ring features different exercise modes such as walking, running and cycling. The ring tracks and scores your activities to encourage a more active lifestyle, to improve your performance and exceed your limits.,【EXTREME WATERPROOF】 Thanks to our 5ATM waterproof technology, you can embrace all environments without worry. Our smart bracelets are fully sealed to handle daily contact with water for swimming, showering, and even rainy days, ensuring durability, reliability, and waterproofness up to 164 feet in all conditions.,【Women's Fitness Ring 】Men's Smart Ring is made of aluminum alloy, the most comfortable to wear, lightweight, only 2.4 grams of weight, basically can not feel its existence!,【Wireless Synchronization with Mobile App】Smart ring health tracker data can be viewed on the mobile app for free without any subscription fee, the app provides various charts and graphs so that you can monitor the progress of your activity and health condition. The device supports Android 5.1 and iOS 8.0 and above.