I have always been a fenix user since the first one came out, and have had every version of it. When they started making the solar versions, I think the solar ring made the display look "not so good", and also even more difficult to read at certain angles with the sapphire editions. I wont get a non-sapphire device, because there is nothing worse to me than spending 1k+ on a device and getting a scratch on the screen.
I tried the epix gen 2 last year, and liked the display, but with "always on" enabled, I was not getting a full week between charges, plus I like the 51mm size, so I replaced it with the fenix 7x sapphire solar. Last month I decided to try the enduro 2 just for a change of paste, and shortly after that, the epix pro & fenix pro came out. The epix pro had a 51mm sapphire edition too. My enduro 2 was still within the 30 day return period, so I did a return on that, and ordered the epix pro 51mm sapphire edition, and received it yesterday.
I need a device with sapphire, an easy to read display (without my reading glasses), the battery to last at least a full week (minimum) between charges, and I think this device will surpass those requirements. I've only had it since yesterday, did a short walk yesterday evening just to test it out, and today I did a hike which included everything from bright sunshine to deep in the woods horse trails, and the display was easy to read in all conditions. It also tracked all my metrics accurately. The buttons seem to feel better too.
This device is "AWESOME"!!!