When Samsung announced the Galaxy Watch 3 last month, one of the features it highlighted was support for electrocardiogram (ECG) readings. Now that feature is live in the US.

Samsung has gotten approval from the US Food and Drug Administration to enable ECG readings on both the Galaxy Watch 3 and the Galaxy Watch Active 2. This feature is rolling out starting today, September 23, in the Samsung Health Monitor app.

To take an ECG reading, sit down, open the Samsung Health Monitor app, and make sure your smartwatch is snug on your wrist. Then lay your arm on a flat surface and place your fingertip on the top button. Your watch will then take an ECG reading.

Once complete, you can record relevant symptoms like fatigue or dizziness and send a PDF of your ECH recording with your healthcare provider.

Taking an ECG reading can be useful in monitoring your heart rhythm for irregularities and for signs of Atril Fibrillation. It's a handy feature to have on your smartwatch, and it's good to see it rolling out now to both the new Galaxy Watch 3 and the Galaxy Watch Active 2 that launched last year. So if you've got either smartwatch strapped to your wrist, be on the lookout for an update in the coming days.