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Heart Rate Variability from Apple Watch 4 vs. a Nexus 10 Biofeedback unit. Quite similar! : r/AppleWatch
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Apple Watch Heart Rate Variability Accuracy and Insights From 3.5 Years of Measurements : r/AppleWatchFitness
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Anyone else getting HRV readings in the 100+ zone? I can't seem to find any good information on this. : r/AppleWatch
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Heart rate variability displayed in the Apple Health App, 1-month timescale | Download Scientific Diagram
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