Google is introducing heart rate and respiratory rate monitoring to its Google Fit app as part of its latest feature drop. These features will initially only be available to select Pixel phones. With these features, users will be able to track their heart and respiratory rate through their phone without requiring specialized hardware. Both features are designed to work using just the cameras front and back. The heart rate monitoring works by placing your finger on the back camera. This technique has been using other apps for a while now and it's a cost effective way to check for...
Source: https://www.gsmarena.com/google_fit_gets_heart_rate_and_respiratory_rate_monitoring-news-48107.php
