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Products > reference standard > Shenzhen Twinkler Technology Co.,Ltd | Similar Products

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reference standard

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Smart Watch Men ECG PPG IP68 Waterproof Blood Pressure Heart Rate Fitness Tracker Sports Smartwatch: Main Function: Heart rate monitoring, ECG +PPG, blood pressure , blood oxygen, counter, payment, weather, stopwatch, music control, Bluetooth photo Platform: Norway Nordic nrf52832 Memory RAM: 64KB, ...

New Smart Watch Men Women Smartwatch Fitness Bracelet Tracker Heart Rate Monitor Smart Band Watch: smart bracelet in sea water, hot water or warm water! 3. Don't wear this device when bathing or swimming for a long time.4.Wearable devices monitors human activities through electronic sensors,and ...

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