Circul Smart Ring-Adjustable Wearable Ring for Men & Women, Blood Oxygen & Blood Pressure Ring,No App Subscription, Fitness Ring for Sleep Tracking - Heart Rate - Fitness Tracker

Additional Details from the Manufacturer

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More features

• Adaptive-Fit Design: Revolutionary technology automatically adjusts to finger size changes throughout the day. Perfect skin contact ensures accurate readings while maintaining comfort. Fits multiple fingers without sizing kits.
• Advanced Sleep Monitoring: Tracks your sleep patterns and oxygen levels throughout the night, providing insights to help you understand your sleep better.
• Real - time SpO2 Tracking: Continuously monitors your blood oxygen levels in real - time, keeping you informed of your body's oxygen status. Monitors heart rate, HRV, SpO2, activity, stress, and temperature. OTA updates ensure latest features, while the app provides trend analysis and personalized insights.
• No Subscriptions, Extended Battery: One-time purchase unlocks all features permanently. 4 - 7 day battery life with 120+ additional hours from portable charging case. iOS/Android compatible with Apple Health sync. 5 ATM waterproof.
• Professional Fitness Tracking: Accuracy rivals chest straps with multiple sport modes, real-time monitoring, and customizable goals to optimize training effectiveness.