Feature: 1. Comprehensive Protect: The smart ring with advanced sensor technology deeply analyzes your exercise data and sleep quality, presenting you with a detailed health report. Whether it's the amount of daily activity or deep sleep cycle, it can be seen at a glance, helping you to accurately grasp your own health status. 2. Stylish Design: Designed with a polished ceramic surface and made of aluminum alloy, this smart ring is lightweight, comfortable to wear. Meanwhile, it is compatible for Android and for iOS systems, allowing you to check your health data anytime, anywhere through the exclusive app, convenient and efficient. 3. Life Guidance: The sleep tracker smart ring goes beyond a traditional health monitoring device, it is more of an advocate of a positive attitude towards life. Through in depth analysis of your health data, it provides personalized life advice and guidance to help you improve your living habits and achieve a ideal balance of health, vitality and life. 4. IP68 Waterproof and Dustproof: Whether you are washing your hands, bathing or swimming, the IP68 waterproof and dustproof performance ensures that the ring can still work stably in various water related scenarios, and continuously detects your well being data. 5. Remote Camera Control: The smart ring enables the remote camera function in the app, allowing you to take photos with a simple shake of the finger wearing the ring. It is an excellent choice for personal use or as a gift. It comes with a wireless charging case to make charging even easier. Specification: Item Type: Smart Ring Health Tracker Material: Aluminum Alloy, Plastic Battery Type: Polymer Battery x1 (with built in battery for shipping) Battery Capacity: 20mAh China Size 10 Size: Inner Diameter: Approx. 19.8mm Perimeter: Approx. 62.1mm Thickness: Approx. 2.77mm Waterproof Level: IP68 Basic Functions: Step Count, Mileage, Calories, Body Temperature Detection, Sleep Monitoring (Sleep Time, Sleep Quality), Health Monitoring, Female Physiological Health, Shake to Take Photos, Data Sync to Application . Package List: 1 x Smart Ring 1 x Charging Case 1 x Charging Cable 1 x User Manual