Apple had announced the Electrocardiogram App at September keynote event. The company had said that the app will be available later this year. And the app was released today.
With the new Watch OS 5.1.2 the ECG app also released and ECG results will stored in Health app. Users will be able to export the results as PDF and they can show it to their doctor or physician. The new version of Watch OS will also notify the Apple Watch users of irregular heart rhythms.