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# stopAbsoluteAltitudeUpdates()

Stops the delivery of absolute altitude data for this altimeter object.

```
func stopAbsoluteAltitudeUpdates()
```

## Discussion

Calling this method ends the delivery of absolute altitude events and releases the references to the operation queue and block that you specified in the [`startAbsoluteAltitudeUpdates(to:withHandler:)`](/documentation/CoreMotion/CMAltimeter/startAbsoluteAltitudeUpdates(to:withHandler:)) method. If you haven’t started delivering data, or if you’ve already called `stopAbsoluteAltitudeUpdates()`, this method does nothing.

> Note:
> Absolute altitude is only available on iPhone 12 and later and Apple Watch 6 or SE and later.

---

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