Product name: Smart Ring Charging BoxBattery capacity: 200mAFeatures:1. Multiple data health monitoring. APP displays monitoring data in real time2. IPX8 dust and water resistant. Stylish lanyard is compact and portable3. Portable storage, built-in batteryFunction:1. Multi-sports mode. Record sports, walking, running, cycling, mountain climbing, swimming and other modes... Automatically identify your sports mode2. Blood oxygen monitoring.Easily measure blood oxygen as you like. Blood oxygen saturation is one of the important indicators of heart health. The new optical sensor detects blood oxygen in real time and quickly to prevent sudden diseases such as cardiopulmonary disease3. Sleep monitoring records complete sleep structure.Understand your own sleep status, light sleep, and deep sleep during the entire sleep period. Good sleep habits will lead to better health.4. Large-capacity battery for longer battery lifeEquipped with a large-capacity battery, 9 days of standby, and a new low-power mode. After turning on the low-power mode, your commonly used health functions still support manual measurement, and your favorite sports can also be manually turned on for recording, with longer battery life and sufficient functions!Product weight: 30gAppearance size: 50*50*20cmColor: black, whiteIncludes: 1pcs