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Some smartwatches can flag an irregular rhythm, but I’m unsure how much confidence to put in a notification—especially if I feel fine or the alert appears only once. How reliable are these readings in everyday use, and what kinds of irregular heartbeat can a consumer watch actually detect?
I’m also wondering how factors such as a loose band, movement, or exercise affect the result. For people who have received an alert, what did a clinician recommend doing next?
