One thing I loved when I owned a Garmin fitness tracker was the ability to engage in weekly step challenges with users all over the world. If you joined the weekly step challenge you would be added to a group of 10 people who all have similar average weekly step counts, you'd then compete weekly to be number 1. I loved that they didn't have to be friends you've added to the app, they could be anyone. I don't know anyone else with at Withings fitness tracker, so it would be great to compete with people I don't know. Fitbit also locks its step challenges to just approved friends. I always found the Garmin way to be the best. Open it up to anyone, anywhere. Makes the step challenge more fun.