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  1. Military Smartwatch Fitness Tracker Heart Rate SpO2 Sleep Monitor Smart Watch for Android iOS

    Military Smartwatch Fitness Tracker Heart Rate SpO2 Sleep Monitor Smart Watch for Android iOS

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  2. A Research Team Hopes to Get Every Sailor to Wear a Sleep Tracker. And They Have Big Plans for the D

    A Research Team Hopes to Get Every Sailor to Wear a Sleep Tracker. And They Have Big Plans for the D

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  3. Fitbit Charge 5 Advanced Health & Fitness Tracker with Built-in GPS

    Fitbit Charge 5 Advanced Health & Fitness Tracker with Built-in GPS

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  4. GREAT SMARTWATCH: IOWODO Smart Watch Fitness Tracker 1.69'' HD Touch Screen with Heart Rate Monitor

    GREAT SMARTWATCH: IOWODO Smart Watch Fitness Tracker 1.69'' HD Touch Screen with Heart Rate Monitor

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    4
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