At the September 12th, 2018 Apple event, Apple announced their Series 4 Watch. One of the new features is the fact that you can now do a ECG (Electrocardiogram) on the watch itself. This is the first known instrument to be able to do an ECG outside of a medical clinic. The ECG app will also let you know if you have any arrhythmias or other heart issues. The President of the American Heart Association got up on the stage to give his approval of this technological breakthrough. And according to Apple, it is also approved by the FDA.