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Smart Bracelet,Activity&Fitness Trackers,Touch Screen/Sleep Tracker/Heart Rate/Blood Oxygen,5ATM Waterproof,Multiple Sports Modes,Free App for iOS Android (Silvery Steel Belt)
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【24-Hour Health Monitoring】The fitness tracker has the function of monitoring heart rate/blood oxygen/stress/heart rate variability/mental state, so you can track your health data 24 hours a day and help adjust your overall condition. The sleep tracke