Apple on Thursday officially released its new watchOS 6 update to all compatible watches. At launch, it’ll be available for Apple Watch Series 3 and Apple Watch Series 4 models. Compatibility for Series 1 and 2 will come at a later date. And you probably should download it, too. watchOS 6 is packed with new features, from health tools and tracking to cool new watch faces. Continue reading to learn about the biggest new features and improvements.