Why mixed-phone challenges are hard
Apple’s activity sharing runs through the Fitness app on iPhone. And Fitbit retired its Challenges and Adventures in March 2023, which left a lot of friend groups without their weekly competition.
Walk & Water reads from each phone’s own health hub instead: Apple Health on iPhone, Health Connect on Android. That is what lets one team mix both.
Which watches work?
If your watch sends steps to Apple Health or Health Connect, they count. The tool above shows each walker’s route. In short:
- Apple Watch: steps reach Apple Health automatically.
- Samsung Galaxy Watch: turn on Health Connect syncing in Samsung Health.
- Garmin: turn on Apple Health or Health Connect sync in Garmin Connect.
- Fitbit: share steps from your Fitbit app to Health Connect (Android) or Apple Health (iPhone, where your app supports it).
- No watch: an iPhone counts steps on its own. On Android, a fitness app such as Google Fit or Samsung Health sends phone steps to Health Connect.
Fair for friends at different fitness levels
Teams rank on their average per woman, not their total. So a team of two can beat a team of four, and your friend who walks 4,000 steps counts the same as the one who walks 14,000. Everyone has a goal sized to where she is today.



