So last week I grabbed a 5 Sapphire version when I saw it available on Amazon. I've used it for a few workouts and so far have very few complaints.
However, something about the 5X kept calling to me. I really like large watches so when I saw one available again on Amazon this weekend I snatched one up.
Now I have both here to compare side by side. My head tells me to go with the 5 since it's probably more than I need anyway but my heart says the 5X. I'm mostly an outdoor (pavement and sometimes trails) runner, cyclist (indoor and outdoor) and elliptical user.
The only thing that really concerns me is the overall size of the 5X being bothersome on longer runs and its inability to fit under certain long sleeved shirts.
I'm going to now wear the 5X for a few days and try to make a decision. A tough one it is though!