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# recommendedVideoFormatFor4KResolution

Provides a 4K video format if the device and configuration support it.

```
class var recommendedVideoFormatFor4KResolution: ARConfiguration.VideoFormat? { get }
```

## Discussion

If the device and configuration support 4K, the returned video format is also present in the configuration’s [`supportedVideoFormats`](/documentation/ARKit/ARConfiguration/supportedVideoFormats) array.

This function returns `nil` if the device or configuration doesn’t support 4K, so you can call this function to determine whether to enable 4K for your session.

---

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