How Health handles data from different sources
The Health app takes similar data from different sources, like steps recorded from your iPhone and steps recorded from your fitness band, and organizes it based on where it comes from. By default, Health prioritizes data in this way:
- Health data that you input manually.
- Data from your iPhone, iPod touch, and Apple Watch.
- Data from other third-party apps and Bluetooth devices.
When you add a new data source, like a new step counter app, it will appear above all other third-party apps and devices that contribute data for steps in the Health app. Apple Watch activity data is automatically included in the Health app when you pair your Apple Watch to your iPhone.


View your data sources
You can see all of the sources that share data to the Health app.
- Open Health and tap Health Data.
- Tap a category, like Activity. You can also swipe down to reveal the search bar, then enter what you're looking for.
- Tap a data type, like Steps.
- Tap Data Sources & Access.
Depending on the type of data you select, you might see your iPhone, iPod touch, or Apple Watch, and you might also see other third-party sources.
To see all of the data contributed by a source, tap the Sources tab at the bottom, then tap the app or device. From here, you can choose categories that you want the source to access in the Health app.

Prioritize your data sources
You can edit and rearrange your data sources to change the way that Health prioritizes data.
- Open the Health app and tap Health Data.
- Tap a category, like Activity.
- Tap a data type, like Steps.
- Tap Data Sources & Access and tap Edit.
- Touch and hold
next to a data source and move it up or down in the list.
The data source that you place at the top will take priority over other sources that contribute that type of data. Any new apps or devices that you add will appear at the top of the list, above your iPhone or iPod touch by default. You can change the order of your data sources anytime.
To turn off a data source so that it doesn't contribute any more data for that category, tap the checkmark next to the data source.
Learn how to manually add data to the Health app.

Learn more
Set up and use the Health app on your iPhone or iPod touch.