Easy to use, easy to find info online. Easy instructions. The heart rate monitor is, as expected, not very accurate, but this was was in all the reviews I read. I just linked it to my heart rate strap... works great!
I was on vacation when I got this watch. I had a fitbit that wasn't waterproof and I may have intentionally wore it in the ocean to break so I could get this one. It is waterproof and so much more! I use it daily to track my workouts. It sinks w my MYZONE chest strap for my workouts as well. My husband is jelouse that I have a better watch than him and I'm sure will be ordering a new Fenix soon.