Google recently rolled out Adaptive Sound to the Pixel 6 and Pixel 6 Pro, and the vanilla model has now picked up a couple more features as it gained heart rate and respiratory tracking support through Google Fit, which was announced by Google in March. These features let you measure your heartbeat and track respiratory rate using the smartphone's camera and flash. The latter is required to boost the lighting when measuring heart rate to look for changes in your finger's color, but it could prove to be less handy on the Pixel 6 pair since the camera and flash on the duo are far...
Source: https://www.gsmarena.com/google_pixel_6_google_fit_heart_rate_monitoring_respiratory_tracking_early_access-news-51810.php