Samsung just received approval from the US Food and Drug Administration (FDA) for the sleep apnea feature in the Samsung Health Monitor app. This will detect signs of sleep apnea when using a compatible Galaxy Watch and Samsung phone combo in the US. Which Galaxy Watch, you're wondering? It's still unclear, Samsung's press release doesn't talk specifics, but it's safe to assume at least the Galaxy Watch6 series will get it. For what it's worth, in Korea both the Watch6 and Watch5 families will support the feature, which was previously approved by the relevant authorities there. The...
Source: https://www.gsmarena.com/samsung_gets_fda_approval_for_sleep_apnea_feature_on_galaxy_watch-news-61551.php