I wear both FitBit Charge HR as well as Apple Watch on both my wrists. Crazy about tracking? I was actually being asked several times, at work especially when meeting the clients. I shared with them that FitBit gives me the advantage of competing with my friends on the daily goals. Apple Watch, kind of hard not to have it now, since I could read the push notifications on my wrist.
I have a Pebble, which I bought from one of the developer in Malaysia, whom happened to buy an extra set. I used it for a while, until I noticed the screen seems rather hard to read when I am using my polarised sunglasses. So, I have been thinking of selling it. But, I still have it with me, maybe I could use it for running, cycling.