I’ve got a cool trick today. Did you know that you can take your heart rate directly on your smartphone without any extra devices or monitors?

There are quite a few apps that can do this. I’m going to show you how it works using a free app, appropriately named Heart Rate that works on Android and iOS.

Open the app and put your finger over the camera lens and flash. Hold steady and you’ll see your heart rate. It works best when the phone case is removed.

Before and after your workouts you can easily track your heart rate.

Tap History, to see your previously recorded measurements or Have it sync up with other fitness apps like Apple Heath App or Google Fit for a complete health picture.

The app is free and ad supported.

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