Found a scratch on the back of my Watch. Are my Sensors still accurate? : r/AppleWatch
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Ticwatch GTH Pro Smartwatch Arty Heart Health and Dual Sensor Technology 5ATM Waterproof GPS Fitness Tracker with Heart Rate & Sleep Monitor Blood Oxygen for Men Women iOS/Android Compatible : Amazon.ca: Clothing,
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/cdn.vox-cdn.com/uploads/chorus_asset/file/21928299/dseifert_200930_4217_0013.0.jpg "How to measure heart rate on your smartwatch - The Verge")
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Wolfnotch Diabetic Smartwatch,Blood Glucose Watch,Wolf Notch Smart Watch Blood Sugar, for Android iOS Phones with Heart Rate Monitor Sleep Monitor Pedometer Step Count Calorie Count Fitness Watch (Co : Amazon.ca: Clothing, Shoes
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