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Samsung Smart watch vs Amazon Pulse oximeter comparison heartrate SPo2 atrial fibrillation aka aFib - YouTube
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Amazon.com: SAMSUNG Galaxy Watch 4 40mm Smartwatch with ECG Monitor Tracker for Health, Fitness, Running, Sleep Cycles, GPS Fall Detection, Bluetooth, US Version, SM-R860NZKAXAA, Black : Electronics
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All watch vitals checked with pulse oximeter, medical grade blood pressure monitor, and the watch provides ECG, Blood Pressure, Stress Levels, Blood Oxygen, Live Pulse, HRV monitor, the works : r/GalaxyWatch
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