Apple Activity Sharing Privacy

I use an Apple Watch to track my exercise. I understand smart watches like these aren't the best privacy-wise, but after some research, the Apple Watches seemed to be the best of the worst and I really needed something to track calories burned.

The other day, I noticed Apple has a feature to share basic calorie data with friends to motivate each other, compete, etc. I'd really like to use this, but concerned about privacy. Specifically, Apple having more of …

apple privacy sharing