COLMI Smart Ring for Women, AI Health Tracker & 5ATM, R02. (Gold, 9#) | Couples' Space & No Subscription Fee Smart Ring, Heart Rate, Blood Oxygen, Sleep Health Monitoring, Menstrual Cycle, Fitness.

Key features

• [Purchase a Sizing Kit] Before purchasing the COLMI R02 smart ring, we strongly recommend that you purchase the COLMI sizing kit or measure your finger size according to the size chart to help you choose the correct ring size for a comfortable fit and to avoid unnecessary returns or exchanges.
• [No App Subscription Fee Required] Say goodbye to monthly bills! The COLMI 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 pure and simple.
• [Al-Powered Health insights] Built-in smart Al analyzes heart rate,blood oxygen, sleep, and activitydata -delivering in-depth, intelligentinterpretations of your health.
• [Nighttime Sleep Insights] Tracks continuous night rest for holistic wellness trends. Note: 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 and monitor heart rate abnormalities, keeping track of your daily health.
• [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.
• [Battery Life] Your usage frequency determines your power consumption. Basic Mode (4-5 days): Tracks only steps and basic sleep. Balanced Mode (3-4 days): Synchronizes heart rate every 60 minutes. Enhanced Mode (2-3 days): Monitors heart rate in real-time throughout the day. Requires frequent daily charging.