• Researchers use AI and accelerometer data to predict heart rate while saving battery life

    7 days ago - By Venture Beat

    What do the Apple Watch and Nokia Pulse Ox have in common? They've both got pulse oximeter sensors that measure heart rate using photoplethysmography , the expansion and contraction of capillaries based on changes in blood volume. They're accurate to a degree, but require a fair amount of electricity because they're light-bas...
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