Smart Ring for Women, Health Tracker & 5ATM, R02.(Black Ceramic, 8#) Smart Ring & No Subscription Fee, Menstrual Cycle, Skin Temperature, Heart Rate, Sleep Health Monitoring, Sports Tracking

[No App Subscription Fee Required] Say goodbye to monthly bills! The smart ring requires no app subscription fee. Enjoy all features right out of the box, instantly unlocking core data such as heart rate monitoring, sleep analysis, and 24/7 activity tracking, making health management simple and straightforward. [Nighttime Sleep Insights] Tracks continuous night rest for holistic wellness trends.
Note: The algorithm is strictly calibrated for nighttime cycles to ensure data purity. [Heart Rate Measurement] 24/7 smart heart rate measurement allows you to understand your heart rate status, monitor heart rate abnormalities, and keep track of your daily health. [Skin Temperature] Supports skin temperature measurement and allows you to set a timer for measurement to monitor your skin temperature at all times. [Portable Charging Case] Includes a compact charging case for charging anytime, anywhere, without worrying about running out of power. [Ring Protector] The ring comes with a white silicone ring protector. When wearing the ring, you can put the ring protector on the ring to prevent friction and scratches