---
title: PreviewPlatform.watchOS
framework: swiftui
role: symbol
role_heading: Case
path: swiftui/previewplatform/watchos
---

# PreviewPlatform.watchOS

Specifies watchOS as the preview platform.

## Declaration

```swift
case watchOS
```

## See Also

### Getting an operating system

- [PreviewPlatform.iOS](swiftui/previewplatform/ios.md)
- [PreviewPlatform.macOS](swiftui/previewplatform/macos.md)
- [PreviewPlatform.tvOS](swiftui/previewplatform/tvos.md)