1、Ceramic Material: The smart ring is made of ceramic material, lightweight, comfortable to wear, skin friendly, ensuring excellent workmanship and durability. With IP68 rating, it can withstand water depths of up to 1000 meters. Your ideal health companion, our ring is a good choice for men and women. 2、Magnetic Charging: The smart ring health tracker features built in powerful magnetic coil that allows for easy charging by simply attaching it. It charges efficiently, fully powering up in about an hour. 3、Sleep Tracking Ring: Designed to help you understand various sleep stages such as deepness sleep, REM sleep, light sleep, and wakefulness. During different sleep phases, the body undergoes various metabolic processes to promote growth, repair, recovery, and maintenance. This comprehensive overview of sleep behavior and body condition makes the sleep tracking ring your ideal health companion. 4、Sports Ring: Enhance Your Health: Experience a variety of indoor and outdoor activities through the app. Effortlessly track steps, distance, calories, and pace by wearing the smart ring. Analyze map path tracking and detailed workout data to improve your performance and push beyond your limits. 5、Redefine Health Life: By recording and analyzing your health data, it motivates you to make better lifestyle choices to stay energetic, and balanced. Whether you're passionate about fitness, focused on sleep, or seeking better stress management, the smart ring provides personalized recommendations and guidance. Make health the core of your life, and let the smart ring be your trusted companion. Item Type: Smart Ring Material: Ceramic Weight: Approx. 40.00g / 1.41oz Battery (Built in) : Polymer Lithium Ion Battery 156825 Capacity: 16MAH App: Download for ECTRI System Functions: Step Counting, Temperature, Pressure, Sleep Tracking, Women's Health, Sports Data, Sports Trajectory, Gesture Function, Motion Games, NFC216 Large Capacity Business Card URL IC Access Control Level: IP68 1 x Smart Ring 1 x Storage Case 1 x Charging Cable