R1 Sports Sleep Smart Health Ring 2024 BT 5.2 Heart Rate Blood Pressure Oxygen Monitor Fitness tracker Smart Ring NFC with App

R1 Sports Sleep Smart Health Ring 2024 BT 5.2 Heart Rate Blood Pressure Oxygen Monitor Fitness tracker Smart Ring NFC with App. Model. Charging time. 30-60 minutes. Working time. 3-5 days. Battery capacity. 18mAh. Ring Weight. About 5g. Waterproof level. Features: App Control. Features: IP68 waterproof. Function: Sleep Tracker. Function: Fitness Tracker. Function: Heart Rate Tracker. Function: NFC Technology. Function: Blood oxygen monitor. Model: R1.