The Apple Watch’s growing array of heart health features can and have saved lives. We hear reports all the time about the detection of irregular heart beats convincing people to get checked out only to discover a ticking time bomb in the chest cavity.

Overall, features like the built-in ECG have been hugely beneficial and are now an important selling point for the smartwatch range. However, it could be that the feature is also sending more people rushing to the doctor than entirely necessary.
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