Newbie-How Do you Sync Health Data

[stockcerts]

I just brought home my new Watch today. I'd like to use the health app and it says to use the activity app on my iPhone. I haven't been successful at figuring out how to share my health data on my phone with my watch.

Any help will be appreciated.

 

[exxxviii]

What data? Some data only move up from watch to phone.