No matter how much the Apple hardware may catch-up with Garmin etc's capabilities, Apple's closed system is at odds with the data mobility sought by most advanced Garmin/Suunto users that I know e.g. to/from Strava, MapMyEverything, TrainingPeaks etc.

I think Apple will be happy to leave the Prosumers behind and appeal to people who are less active, and maybe even be a first step towards dedicated sports watches. At least for now.

After a year with the Apple Watch as my day-to-day watch and Garmin Fenix 3 for sports (swim, bike, run, hike), I've now switched to Garmin Forerunner 235 for day-to-day and Fenix 3 for sport purely so I can get all of my data into a single repository, easily.

The one killer app I'm missing on the Apple Watch is Siri.