ECG wearables: How they work and the best on the market

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Heart rate monitors are part and parcel of smartwatches and fitness trackers now, but electrocardiogram (ECG) is the new key sensor in town. The technology is designed to help people keep tabs on their heart health, and can identify atrial fibrillation (Afib) which is a serious medical condition, and a leading cause of stroke. Apple…



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