I am looking into the Apple Watch, but was concerned about the lack of GPS while running / jogging (without iphone). I just saw the Garmin Vivoactive. Looks interesting (comes out in April too). I like the up to 3 weeks (w/o GPS active) battery time, and smart watch notifications. It's also $100 less. I'm still using the Garmin 205 - which is like having a calculator on my wrist (although it works great). Just curious what everyone else thought of it? It's a tempting alternative, but I am wondering if I'll wish I got the apple watch and just use the old garmin on runs?