watchOS 3, set to be released this fall, introduces some radical changes to the operating system that runs on the Apple Watch. There are new apps and watch faces, interface tweaks overhaul the way we interact with watchOS, and a new feature for keeping apps running in the background allows for instant launch times.Since most of us won't be able to check out watchOS 3 until the fall of 2016 following an extended beta testing period, we've created a video to highlight the must see features.Glances are gone in watchOS 3, replaced with a "dock" accessible by pressing the side button. 10 favorite first and third-party apps can be added to the dock, where they'll be kept continually up to date and able to launch in a second. Changing watch faces is done with a left and right swipe, while a downward swipe now brings up the Control Center.Activity Sharing features allow Apple Watch owners to share workout and activity information with friends, and there are new options for Wheelchair users. A Breathe app guides users through daily deep breathing sessions, an Apple Watch can unlock a Mac, and Apple has added apps for Reminders, Find My Friends, and accessing one's heartbeat.Watch faces support more complications, there are three new watch faces to choose from, including a new Activity watch face, and an SOS feature will make sure an option to get help in an emergency is always right at your fingertips. On the iPhone, there's a new Face Gallery for customizing Apple Watch faces, and watchOS 3 allows the Apple Watch to be located via Find My iPhone.For full details on the new features coming in watchOS 3, make sure to check out our watchOS 3 roundup . Don't miss out on our previous videos, which have covered iOS 10 and macOS Sierra features:We've also got roundups for all of the upcoming operating systems, including iOS 10 macOS Sierra , and tvOS 10 Article Link: Hands-On With watchOS 3: Instant App Launching, Favorites Dock, New Watch Faces and More