ECG smartwatches explained: How they work and the best on the market

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