Make the most of watchOS.

The exciting capabilities of watchOS let you bring the best of your app to the wrist with timely interactions that focus on the content users care about most. Take advantage of incredible performance, background modes, built-in altimeter capabilities, direct connections to accessories, and more.

Independent Apps

Leverage the power of iOS frameworks and technologies to create a fully independent app experience on Apple Watch. Sign in with Apple lets users sign in to apps on Apple Watch, even when they’re away from their phone. And you can even build an app just for Apple Watch, without a companion app on iOS.

Learn about independent apps

App Store on Apple Watch

The App Store for Apple Watch lets users easily discover, browse, search, and install watchOS apps directly on Apple Watch. Users can search using Siri, dictation, or Scribble, or go directly to the product page by tapping a product page link.

Learn about preparing apps

Complications

Provide timely and meaningful information throughout the day directly on the watch face with complications. Your app can provide relevant information or allow for quick access into your watchOS app.

Learn about ClockKit

Workout Sessions

Fitness apps can access real-time heart rate data, the gyroscope, route map data, the all-day accelerometer, and enable Water Lock mode, allowing you to create compelling fitness experiences.

Learn about HealthKit

Shortcuts and Siri Experiences

Siri uses machine learning and relevance algorithms to show timely content or provide Siri Shortcuts — right when they’re needed. To take action, users can simply raise their wrist and tap the Siri watch face or say custom voice phrases to Siri.

Learn about SiriKit

Device Connectivity

Apps can connect directly to Bluetooth on Apple Watch, so information is updated instantly and can be seen as soon as users raise their wrists. This feature is useful for a variety of apps, including continuous glucose monitors, and sports apps connected to equipment with embedded sensors.

Learn about CoreBluetooth

Audio Playback and Recording

Audio apps can run in the background. Users can play locally-synced playlists or podcasts while on the go, download playlists and episodes to Apple Watch, control playback using Apple Watch, and choose which Bluetooth audio device to play to.

Learn about AVFoundation

Streaming Audio

Your app can offer streaming audio so users can stay connected to episodes, albums, audiobooks, meditations, radio, and more wherever they go without their iPhone.

Learn about streaming audio

Notifications

Make your app notifications interactive with WatchKit controls that let users take actions directly within the notification without opening the app. Users can check in and add the boarding pass for an upcoming flight, update time or party size for a restaurant reservation, and more — right from within the notification.

Learn about UserNotifications

Extended Runtime

Apps designed for session-based use, such as mindfulness, alarms, and physical therapy, can get extended runtime as well as access to heart rate, motion, and location.

Learn about WKExtendedRuntimeSession