---
title: startDeviceMotionUpdates()
framework: coremotion
role: symbol
role_heading: Instance Method
path: coremotion/cmheadphonemotionmanager/startdevicemotionupdates()
---

# startDeviceMotionUpdates()

Starts device-motion updates.

## Declaration

```swift
func startDeviceMotionUpdates()
```

## Discussion

Discussion To receive the latest device-motion data, examine the deviceMotion property.

## See Also

### Starting and Stopping Updates

- [startDeviceMotionUpdates(to:withHandler:)](coremotion/cmheadphonemotionmanager/startdevicemotionupdates(to:withhandler:).md)
- [startConnectionStatusUpdates()](coremotion/cmheadphonemotionmanager/startconnectionstatusupdates().md)
- [stopDeviceMotionUpdates()](coremotion/cmheadphonemotionmanager/stopdevicemotionupdates().md)
- [stopConnectionStatusUpdates()](coremotion/cmheadphonemotionmanager/stopconnectionstatusupdates().md)