Google taps your phone cameras to measure your heart rate

You’ll also have to hold your phone up for about 30 seconds for it to capture your respiratory rate, which is longer than it sounds. Plus, this implementation also means you won’t be relying on this feature to keep tabs on your pulse while you’re working out, unless you plan to keep holding your phone and looking at the screen while you run or dance. Still, it’s nice for people without fitness trackers to have a way to get these metrics when they want.

Google Fit respiratory rate measure process GIF


If this method of heart rate detection sounds familiar, you might be thinking of Samsung’s Galaxy S5, which had a separate sensor below the camera. But apps that let you use your phone to measure your pulse have been around since at least 2014, so this isn’t exactly a novel concept. But because Google is the software titan that it is, it offers some benefits. In addition to having completed initial clinical trials and validations to ensure the accuracy of its products, Google also made an effort to ensure its computer vision-reliant method would work on all skin tones, ages and lighting conditions.

You’ll also be able to see your pulse and breath metrics alongside your other stats in the Fit app. The company hasn’t shared any guidelines on minimum camera specs to use this feature (which for now makes sense since only Pixel phones are supported at the moment). But eventually, Google may be able to reach a wider audience than most if it’s able to bring this to devices with less-sharp cameras or running Android Go, for example.

For those concerned about their privacy, Google is performing these calculations on-device and you can choose to save the resulting measurements to Fit. You can also delete them at any point from your account settings. Bear in mind that these new features haven’t received FDA clearance and weren’t designed for medical diagnosis or to evaluate medical conditions, too.

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