Garmin hasn't yet had a dedicated electrocardiogram (ECG) app despite the health focus of its wearables, but it's filling that gap today. The company has introduced a simply-titled ECG App that, like equivalents on other devices, can study your heart rhythm and look for atrial fibrillation (aka AFib). If there are signs of trouble, you can sync your results with Garmin Connect and create a report you can share with healthcare providers.