## Tracking ### [[HRV]] - The stress feature is actually HRV ### Body Composition _As for the accuracy of the measurements, the study showed that the key stats reported by the Galaxy Watch4 had between 97% and 98% correlation with the results from the two reference methods. Here is the conclusion from the study:_ It will succeed in telling you whether your values are growing or declining, but that doesn't mean the readings are as accurate as a lab test would be. - [Source](https://www.gsmarena.com/study_determines_the_accuracy_of_the_galaxy_watch4_body_composition_measurements-news-56530.php)