Take advantage of all new features, such as programmatic access to the Digital Crown for simpler item selection and animation APIs for fluid and more dynamic user interfaces. Employ new ways to play audio and video, and use the microphone to record audio directly from Apple Watch. With access to the Taptic engine, you can add haptic feedback in your Apple Watch apps. watchOS 2 also includes many enhancements to other existing frameworks such as HealthKit, enabling access to the health sensors that access heart rate and health information in real-time. CoreMotion enhancements include the ability to use the accelerometer to create engaging experiences on Apple Watch.
To install the latest version of watchOS 2 beta on an Apple Watch, download the watchOS 2 beta Configuration Profile, iOS 9 SDK, and iOS 9 beta.
Make sure to install iOS 9 beta on your iPhone before updating to watchOS 2.
You can download the configuration profile for watch OS 2 beta from the link below...