Along with iOS 11, Apple released watchOS 4 on Tuesday. The upgrade for the Apple Watch operating system is compatible with all of Apple’s smartwatch models.
watchOS 4 was first shown off at Apple’s Worldwide Developer Conference earlier this year. It includes new fitness tracking activities, a heart rate tracker with alerts, and support for watch-enabled fitness equipment.
The upgrade also improves music playback, adds in new watch faces including a Siri face, an easier to use app list, and more.
You’ll need iOS 11 on your iPhone before upgrading to watchOS 4. To install watchOS 4, launch the Watch app on your iPhone, select the My Watch tab, tap General, then tap Software Update.
Your watch needs at least a 50% charge and to be in its charging base, plus your iPhone needs a Wi-Fi connection to install the upgrade. Plan on at least an hour to get through the process.
Like iOS 11, watchOS 4 is a free upgrade.