Apple Watch is a waste of time!
The dependence of this watch on being teathered to an iPhone for connectivity and location awareness makes it waste, in my book. I know people who no longer buy watches because they always have their phone on hand. When I'm running, I don't want to (and don't need to) carry a phone. My GPS watch has all the sensors I need. I'm with Tom that this will be neither a big success or a big failure, but with Apple, anything less than complete success falls short of expectations.