Re: updated RunKepper app is AWESOME
I just bought the series 2. At this point I'm hoping that Runkeeper or the stock workouts app will add interval run support, with haptics for time or distance intervals. (I'll take either one, though I'd prefer time.)
(Unless I've missed that somehow...)
Never mind; I did miss it. I'll give it a shot tomorrow.
I tried a run with defined intervals yesterday on the Runkeeper app on the watch. (I was tracking the run on my other wrist with my Garmin as well.) Sure, you can define the intervals (on the iPhone app), and you can choose to do such a workout on the watch app. But, at least at this point, the watch app doesn't provide any feedback at all when interval ends are reached, so it's useless for that.
The watch app tracks GPS location but doesn't track elevation at all, FWIW.
One advantage of the Runkeeper app over the stock workouts app (again, unless I missed something) is the ability to upload runs to Garmin Connect (and MyFitnessPal), so your workout data isn't captive to just Apple. (Though I know that there are third party apps that let you upload workouts from the stock app to other services.)
I'm interested in using the Apple Watch as a backup running watch in case something happens to my Forerunner (i.e., I forget to pack the charging cable when I travel). Hopefully either the stock Workouts app, or the Runkeeper app, will be improved to make that fully possible.