But the resolution makes a big difference in maps and in some stats with graphs and such. The 965 also has some really good battery life with title to wake (23 days I think) while the epix is 16 days but the the 7x is. The 965 is also at a halfway point pricewise between the 6x and 7x last time I looked.
If you want the biggest watch possible, the 51mm Garmin fēnix 5X Sapphire might be a better choice for you. It comes in a fiber-reinforced polymer case with a stainless steel bezel and rear cover
Weird thing is I was not as active in 2019, no Spartans or mountain biking. I had to change the 6x pro under warranty because battery life was down to a week Vs the 20ish days I got when I bought it. I felt my fenix 5x sapphire was a lot more durable with 5 spartan races and many mountain biking days with falls. I am waiting for a 6x pro solar.