Though the Apple Watch’s coronary heart fee monitor should not be thought-about medical grade, it’s extra correct than comparable health trackers with wrist-based monitoring. When tested against an EKG machine (which is what you’d discover at a health care provider’s workplace and almost 100% correct), the Apple Watch measured roughly 91% accuracy.
This precision makes the Apple Watch deal for anybody who needs to see how onerous they’re working whereas exercising and also can present data on different vital well being features, corresponding to sleep issues or irregular heartbeats.
For example, Desai says that “a spiking coronary heart fee throughout sleep can typically point out sleep apnea the place somebody stops respiration attributable to airway obstruction or brainstem respiratory drive.”
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