Apple is turning its fitness tracking into a competition

Apple Watch will now allow users to share activity and work-out data with their friends, the company announced at its annual WWDC conference today.

With this new feature, users can share heart rate data with their friends, and even “smack talk” using voice messages in order to encourage competition. Users receive notifications about their friends’ progress, including completed activity rings, finished workouts, and earned achievements. This sharing feature is also directly connected to the Messages app, so users can communicate with friends and family with new “smart replies” specially customized for activity and workouts.

“We know one of the most popular apps is activity,” said Jay Blahnik, a fitness instructor and Director of Fitness and Health technologies with Apple. “People are addicted to closing the rings. But some people are motivated by other things.”