Smart ring is a smart wearable device that combines the latest technology with fashionable design, aiming to provide users with comprehensive health monitoring and convenient life experience. The following is a detailed explanation of smart ring: Itel Ring is an application for connecting with smart ring, and provides you with interesting and professional analyses of running, steps, sleep management etc.This application's core functions are as follows: Heart rate monitoring: built-in high-precision sensor, real-time monitoring of heart rate changes, providing 24-hour heart health monitoring. Blood oxygen monitoring: smart ring measures blood oxygen saturation through optical sensing technology. Sleep monitoring: with the support of smart ring, accurately monitor different stages of sleep (awake, light, deep), and provide scientific advice to help you sleep more soundly. Exercise tracking: equipped with built-in motion sensors, record exercise data such as steps, distance, calorie consumption. Disclaimer: "Not for medical use, only for general fitness/health use".