Overall, the Apple Watch and Mio Fuse did best, with about 91 percent accuracy. The study was designed to find out whether those readings are accurate. Marc Gillinov, a cardiac surgeon at the Cleveland Clinic and an author on the study. Many of them are very concerned because they've recorded values that seem way outside of the normal range," says Dr. "We have patients come in who have different kinds of monitors like these.
The study, published Wednesday in JAMA Cardiology, tested the Apple Watch, Fitbit Charge HR, Basis Peak and Mio Alpha wristbands. Wrist-worn fitness trackers become less accurate with more vigorous exercise, which presumably is when you'd most want to know your heart rate. One thing to consider is whether the device is a consumer fitness monitor for tracking heart rate, or if it's a medical device approved by the Food and Drug Administration for detecting potentially dangerous heart rhythm irregularities.įirst, the fitness monitors. The question is whether they're going to do your heart any good. Digital gizmos can monitor your heart, whether it's a wrist-worn fitness tracker or a smartphone app to help cardiologists analyze diagnostic tests.
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