
When watchOS 3 launched alongside iOS 10, it brought a handful of feature additions and speed improvements to the Apple Watch. One of the new social features is a way for users to share their Activity Rings with friends and family through "Activity Sharing."
Mainly focused in iOS 10's Activity app, the ability to share workout data nevertheless requires an Apple Watch updated to watchOS 3, and for you to be comfortable with certain people receiving live updates on your fitness activity. When you're ready to start sharing your Activity Rings, and you've updated to both iOS 10 and watchOS 3, follow these steps:
Activity Sharing on iPhone

- Open "Activity" on your iPhone.
- Navigate to the "Sharing" tab on the bottom right.
- Tap the "+" icon in the top right corner to add a friend.
- The app will offer suggestions from your contacts of users who may own an Apple Watch, so you can tap one of those or type in someone specific in the text box.
- You can include multiple invitations at one time, and once you have everyone included in the "To" box, tap "Send."
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Article Link: watchOS 3: How to Share Activity With Your Friends
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