I have the Fenix 3. I will not go back to a normal watch again.
The day to day usage is brilliant for me due to….
The size a clarity of the digital time display, excellent for my increasing age related myopia.
The alarm setting, I often need a couple through the day at work they are easy to set and loud.
The light is great I use this a lot.
Step count, did not know i needed this but I find it excellent although generally very busy i can find myself sitting on my ares a bit the step count gets me up ( helps that I have competition from wife and daughter.
The Compass has saved me a long detour ( only the once ) which is nice.
The sports tracking….
Excellent all I need, great for running as it gives stride length and ground contact time.
GPS acquires really quickly and is as acurate as i will ever need.
Stuff I dont like…
The display is excellent in bright light but a bit dim in darker gloomy conditions, the light sorts this out, I think this was a trade off to increase the battery life.
I dont tether to the iphone as it was always letting me know I had lost signal when not in the same room as the phone…the notifications are good but i found i did not need that function.
When tracking an activity I cant get access to the other functions ( this may be me not knowing how to do it ) but on a long walk or bike ride I would like to use the watch and compass etc but I cant.
Its a bit big, but this has not been a problem.
They brought out the HR version about 2 weeks after I bought Mine..I would go for that given the choice.
AS I knew I would wear it all the time I went for the slightly more expensive Sapphire edition, something I would recommend as being so big I do seem to bang it off things now and again.