Technology
Google Fit update to turn Pixel phones into more advanced health tools – XDA Developers
Google said it’s preparing an update for Google Fit that will allow Pixel phone owners to measure their heart rate and respiratory health.

Forget your smartwatch: Google is adding a new feature to the Fit app that will allow Pixel phones to measure your heart rate and respiratory health. Google said that these new features take advantage of sensors that are already built into Pixel phones, including the microphone, camera, and accelerometer.
To measure your heart rate, place your finger on the rear-facing camera lens. Meanwhile, to measure your respiratory rate, place your head and upper torso in view of your phones front-facing camera…
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