Apple today seeded the third beta of watchOS 3.1 to developers for testing purposes



From MacRumors:

watchOS 3.1 can be downloaded through the dedicated Apple Watch app on the iPhone by going to General --> Software Update. To install the update, the Apple Watch must have 50 percent battery, it must be placed on the charger, and it must be in range of the iPhone. watchOS 3.1 requires an iPhone running iOS 10 to install.

watchOS 3.1 appears to focus on bug fixes and under-the-hood performance improvements rather than outward-facing changes, as no new features were discovered in the first two betas. Should any changes be found in the third beta, we'll update this post.

  Apple Seeds Third Beta of watchOS 3.1 to Developers