Get ready for watchOS 10.

Reimagine your apps and make them even more dynamic, colorful, and glanceable with new SwiftUI APIs and widgets for the Smart Stack. Take workouts to the next level by creating and scheduling custom workouts that can be imported into the Workout app and with access to new cycling metrics, high frequency motion data, and validated calories for golf.

Fresh new design options

Make your app fit right in with the exciting, modern design of watchOS 10. Take advantage of the latest SwiftUI APIs for system materials, tab views, split views, and more.

Widgets in the Smart Stack

Share timely, contextually relevant information from your app at a glance with widgets in the Smart Stack — now on Apple Watch. When you build a widget and donate relevance information, people can select your widget for their Smart Stack so it’s surfaced at just the right moment.

High Frequency Motion API

Detect rapid changes in direction and acceleration with access to higher frequency data from the improved gyroscope and accelerometer introduced in Apple Watch Series 8 and Ultra.

Custom Workout APIs

Create and schedule custom workouts or workout plans that people can sync directly into the Workout app on Apple Watch.

Workout Mirroring API

Mirror the same metrics from Apple Watch directly to the paired iPhone.

What’s new for Apple developers

Discover even more new and updated technologies across Apple platforms, so you can create your best apps yet.

Learn more

Tools and resources

Use Xcode and these resources to build your apps for watchOS.

Download Xcode