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Wholesale R20 Smart Ring 5ATM IP68 Waterproof Adjustable Health Monitoring Timer Blood Glucose Tracking. R20 Smart Ring with IP68 & 5ATM waterproof, GH3018 sensor, supports 24h heart rate, SpO2, blood pressure and HRV monitoring. Features blood composition & blood glucose measurement, Lorenz scatter plot, remote care, multi-sport modes and remote photo control. Bluetooth 5.2 low power, 4 days standby, compatible with iOS & Android, 36-language APP, CE & FCC certified.