WatchOS 3 is an admission that Apple's first attempt was wrong
 

Apple's new Watch software, watchOS 3, isn't just new software, it's an admission that Apple had it all wrong when it came to interactions on the first-generation Apple Watch. It's less of a revamp and more of a rescue of the Watch, an attempt to deconstruct the old software and to focus on the stuff that people actually care about. It's rare for Apple to be this forward.

http://osnews.com/story/29254/WatchO... pt_was_wrong