The Dock
The first two versions of watchOS included an interface element known as a glance, which let you view snippets of information from selected apps without having to launch them. Given the much faster app launch times in watchOS 3, Apple has replaced glances with an app switcher called the Dock (which is intended to function much like the Dock in iOS and macOS). It can hold up to ten of your favorite apps.
Press the side button to reveal the Dock â . Swipe left or right (or turn the Digital Crown) to switch among the Dockâs apps; the dots at the bottom indicate how many apps there are and which one youâre viewing (the brightest dot). You can tap the current app to open it, but merely seeing its thumbnail may often be sufficient.
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