I have use my Garmin Fenix watches for years, and Fenix 3 is my favorite tracker.(Even with some gps jumps and not 100% steps)
And i wait for my Fenix 5x, and with luck i have it in April.
But…i bought a Polar M600.
Not use Polar for years, but this M600 with Android Wear did look fun! And Wear 2.0 on the way in Q1 = Nice.
After some time with it i have to say it´s a very solid tracker, and gps/HR is very solid. HR is even better than my Fenix 3, gps locks in very quick.
Will use it some more and then compare it to my other trackers. 🙂