I have recently got Fenix 3 and waiting for Garmin connect to come to WP platform. I hope they provide something with Windows phone 10 at least. I cant use any smart watch features till I get an app it seems. I'm using GC web version for now. I tried Astro fitness trial so far, its just fetching some information and nothing much, I can create a shortcut to GC web and can look at more details using it than the app. Lets hope we get something for fenix 3 + WP soon.