QRing R09 Smart Ring for Men (2025) - Waterproof Fitness Tracker with Heart Rate & Sleep Monitoring Swimming Pool Remote Control Function Activity Tracker for Android & iOS

Item Type: Smart Ring. Waterproof Grade: 5ATM. Model Number: R09. Activity Tracked: Activity Tracker, Steps Tracker, Distance Tracker, Calorie Tracker. Metrics measured: Heart Rate Monitor, Sleep Monitor, Blood Oxygen Monitor, Body Temperature Monitor, Stress Monitor. Item Weight: 10. Case Material: STEEL. Certification: ce, FCC. Battery Capacity(mAh: 14mAh. Key Feature. APP: Qring. Chipset: RTL8762. Memory: RAM 104KB ROM 512 KB. BT: BT5.2. Waterproof grade: 5ATM. Body Material Alloy. Battery: 14mAh Lithium polymer. Charging Method Magnetic charging warehouse. Charging Time: About 1.5 hours. Normal Using Time: 5-7 days depending on personal habits). Standby Time: 7days-10days. Authentication CE, FCC, RoHS. Supported Systems: Android 5.0 and above iOS 10.0 and above. Main Function. 1 Health management: Heart rate measurement, blood oxygen saturation, HRV heart rate variability, stress, sleep tracking, multiple exercise modes, skin temperature measurement. 2 Exercise Record: Steps, Dista