Wearable gadgets, such as an Apple Watch or Fitbit, have long been able to track your physical activity. But the new generation of smartwatches and smart bands are more intelligent about tracking your heart health, too.
About 38 million Americans who have or are at risk for heart disease use wearable devices. That number is growing rapidly. If you are wondering whether a smartwatch or smart band could help manage your heart health, here are some things to know.