Wear OS 4 Developer Preview

The next version of Wear OS is now available for testing, development, and feedback. Try it out with your apps and let us know what you think!

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What's in Wear OS 4 Developer Preview

The latest version of Wear OS includes several updates and optimizations to help your app run as smoothly and efficiently as possible.

Bring your creative vision to life using either Watch Face Studio or the new Watch Face Format.

Health Services offers new data types, as well as improved permissions for background body sensors.

Prepare your app for 64-bit only hardware and take advantage of the new performance and security improvements in Wear OS 4 Developer Preview.

See a preview of how your app looks on a device that runs on Wear OS 4 Developer Preview.

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Learn about behavior changes in the latest version of Wear OS that might affect your app.

Discover how you can further enhance your app's experience on Wear OS 4 Developer Preview.

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Let us know what you think about using Wear OS 4 Developer Preview!

Learn how to set your app apart by adding surfaces and features to drive engagement.

Explore the latest in Wear OS, announced at Google I/O!