Connect your Apple Watch or iPhone to the Fitness app on Apple TV 4K
Every time you open the Fitness app on Apple TV 4K, you need to connect your Apple Watch or iPhone to start working out.
Tip: Your Apple Watch or iPhone with iOS 16.1 or later syncs with the Fitness app on any Apple TV 4K with tvOS 16.1 or later, so you can work out using your Apple Fitness+ subscription with your Apple TV 4K at home, with an Apple TV 4K in the office workout room, or with an Apple TV 4K in a hotel room while you’re traveling.
Connect your Apple Watch or iPhone to Apple TV 4K
To connect to the Fitness app on Apple TV 4K, your Apple Watch or iPhone must be unlocked and have Bluetooth turned on.
Open Fitness
 on Apple TV 4K.Do any of the following:
Sign in as a known user profile: Select your name, then confirm on your Apple Watch, or press
 on your remote to choose an iPhone to connect, then confirm on your iPhone.Sign in with a known device: Select a device from the Other Devices list, then confirm on that device.
Sign in with a new device: Select Other, then open the Workout app on Apple Watch or open the Fitness app on iPhone and confirm (requires watchOS 7.2 or iOS 16.1 or later).
The Fitness app opens with your workout history, Custom Plans, and library, or options to subscribe if you haven’t already.
Switch user profiles in the Fitness app
While the Fitness app is open, you can switch which user profile is working out.
Go to the Fitness
 app on Apple TV 4K.Open the sidebar, then select the profile icon to sign out.
Select the user profile you want to sign in as, or connect a new device.
Note: If you switch Apple TV 4K user profiles in Control Center while using the Fitness app, any active profiles are logged out of the Fitness app.
For more detailed instructions on using Fitness with iPhone, iPad, and Apple Watch, see the Apple Fitness+ User Guide.