From Apple’s press release:
Apple previewed watchOS 3, featuring significantly improved performance with the ability to launch favorite apps instantly, enhanced navigation like the new Dock and all-new fitness and health capabilities for Apple Watch. Available this fall, this software update introduces the breakthrough Breathe app, designed to encourage users to take a moment in their day to do deep breathing exercises for relaxation and stress reduction. The Activity app now includes the ability to share, compare and compete as well as enabling wheelchair users to close their Activity rings.
When I wrote my WWDC wishlist last week, I only had one request for the Apple Watch — improved efficiency. There’s nothing too terribly groundbreaking about these announcements — all of it feels like natural progression — but these refinements will make using the device much more enjoyable.