Google will start rolling out the Fit app’s camera-based heart and respiratory rate trackers on Monday, March 8th. The tech giant first revealed the new features, which rely on the power of a phone’s camera, at a Health event in early February. Both trackers will give you a way to measure your pulse and breath rates even without a wearable sensor, though they’re only making their way to the Fit app for Pixel devices worldwide for now.
To use the heart rate tracker, you’ll have to hold your…
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