So I own the 5x and just picked up a SSS WHR to see just what if anything is better or worse is between the two. I have illusions to keeping both and I know that the options on both watches are not the same, but after a slight routine (just a structured stretch) I wanted to share my findings. For both watches, I elected on using my Wahoo tickrx for the HR (ant+connected for the F5X, BTS for my SSS HR).
https://connect.garmin.com/modern/activity/1661742478
http://www.movescount.com/moves/move150405498#!
Opinions? Thoughts? I don't which I am keeping at the moment, I have another more intense routine for a bit, but I know when new stuff comes out, I want to see info like this.