Update to the latest version by going to Settings > General > Software Update. Plan automatically renews after trial until cancelled.
To get the newest features, use Apple Fitness+ with Apple Watch Series 3 or later, with watchOS 8 paired with iPhone 6s or later with iOS 15, iPad with iPadOS 15, Apple TV 4K or Apple TV HD with tvOS 15. Apple Fitness+ requires iOS 14.3 or later, iPadOS 14.3 or later, watchOS 7.2 or later, and tvOS 14.3 or later.
An Apple Fitness+ subscription is required for all participants in a SharePlay Group Workout.