Activity Tracker Ring for Men Smart Ring with Heart Rate, SpO2, Blood Pressure, Sleep Monitoring, Step & Calorie Counter, 5ATM Waterproof, No Subscription Fee (Black, 8)

[Select the Right Size]: If between sizes, choose the larger one for a more secure fit and optimal comfort. Please consult the detailed size chart to ensure the most accurate fit, as this smart ring is available in 8 non-adjustable sizes. [All-Day Health & Sleep Monitoring]: Stay informed with adjustable auto-monitoring intervals (30-40-50-60 minutes) for heart rate, blood pressure, and SpO2. This smart ring with blood pressure monitor tracks deep, light, and REM sleep cycles. Access daily insights via the app with no subscription fees. Note: This smart ring is for reference only and should not be used as a professional diagnostic device. [Fitness Tracker & Activity Ring]: The waterproof health rings record steps, calories, and distance all day while supporting 8 sport modes like running and yoga. The app shows your route and heart rate to provide a complete health tracker experience. Note: This smart ring is for reference only and should not be used as a professional diagnostic device. [Hands-Free Photography]: Capture every moment with the top-rated black smart ring, which allows you to take photos by shaking your finger twice to activate your phones camera. It is a convenient option for spontaneous selfies and hands-free photography without extra equipment. [Dual Charging & Compatibility]: Stay powered with a full recharge in 60 minutes. Contains a 400 mAh case for power on the go, lasting 3-5 days. It is fully compatible with Android 5.1 and iOS 8.0 or above, syncing with iPhone and Android phones via Bluetooth for easy wellness management. [Durable Waterproof Design]: Built for any environment, these fitness rings feature a lightweight aluminium alloy and fully enclosed structure. They offer a 5ATM waterproof rating safe for swimming, sweat, and rain, designed in a rugged black silver style for long-term reliability. [Seamless Connectivity & No Fees]: These smart rings connect via Bluetooth for real-time updates and detailed reports. View your data in the app without any subscription fees, ensuring a smooth, user-friendly experience for easy wellness management