Your Google Pixel could track your heart rate with just its rear camera Google Pixel 4a

There’s a new health monitoring feature coming to Google Pixel phones that’s typically only found in wearables: tracking heart rate and respiratory rate by using the handset’s cameras.

The feature runs through the Google Fit app, so it’s presumably free. It’s coming to all Pixel phones starting in March, but will expand to more Android phones at a later date: