HOW TO Share your activity with someone
1 Open Activity
Before you can start a competition with anyone, you need to share your Activity information with the person or people that you want to challenge. You can do this on your iPhone by opening the Activity app.
2 Find your friends
Select the Sharing tab (bottom right of the screen), then tap the + button in the top–right of the Sharing section to invite people from your contacts — they must also own an Apple Watch to be able to take part.
3 Send invitations
In the next screen, you’ll see a list of suggested people that you can share your activity with, or you can type names into the ‘To:’ field. Once sent, you’ll need to wait for them to accept your invitation.