Garmin - epix™ Pro (Gen 2) – Standard Edition | 42 mm

I use an Epix pro gen 2 for the activities you list.

The 42mm Epix pro works for my female wrists. ;)

Get a chest strap for triathlons, one that works in water. The 965/Fenix/Epix are the same or minimal difference. The latest are the Fenix 8 nad forerunner 970. Get what looks good to you, because features are 99.9% the same. Also Fenix is a big bigger

Fenix/Epix are the same, Forerunner 9xx has 99% same functions but a bit lighter and not as tall, but only available in one size

Garmin 265s or if you could get a Epix Pro 42mm for a decent price would have everything you could wish for, including the latest HR Sensor v.5 If you don't want AMOLED screen then the Fenix 7 Pro 42mm would also be perfect. Also consider the Epix pro and Fenix Pro have a flashlight. Sound useless, but comes in handy from nightly toilet visits, camping or just as a strobe while running (can set it up so it auto turns on and blinks when running after sunset)

I have an Android phone and Garmin watch.   I refuse to wear my watch to sleep so can't vouch for the sleep tracker (people do complain a lot about it on the subreddit.) I'm also not sure if all models support sleep tracking, so may want to double check.  Battery varies depending on model/size, my current watch gets about 2 weeks without the display always on, with it on I get about 4 days.  This is an AMOLED screen. My prior watch was MIP and could go much longer before needing a charge.  I've had issues with my prior watches heart rate not picking up quick enough and randomly dropping. These watches used the V3 HR sensor. My current watch has the latest V5 HR sensor. It's much better in responding to my heart rate increases and doesn't have random drops. IMO the step tracking works fine. I don't really have anything to compare it too.  Different models have different sizes.  Most models have a smaller version but the battery life will likely be shorter.  I have an Epix Gen 2 Pro 42mm and while I was worried about the size, having it now I don't find it too bulky and barely notice it's there.  All in all, Garmin is easy to use, accurate enough for me and for what I do. Out of all watches I have seen, IMO Garmin looks the best and dresses up nice, especially depending on watch model.  With so many models, there's a niche watch for just about everyone.  My current annoyances with Garmin is it seems they backed off on different color varieties, more of a move to AMOLED (tho tbh, I did fall in love with my AMOLED watch), starting to paywall features (tho they do claim it's for extra features and that features advertised with the watch won't be paywalled but who knows), and price increases for new models that aren't much of an upgrade. Hopefully my current watch lasts me a while but if for whatever reason I had to buy a new watch tomorrow, I would still go with Garmin over the rest. Atm not enough cons outweigh the pros. 

You state you already have a Fenix, but don't state which one? For hiking I'd probably need a really good reason to upgrade a Fenix such as the Fenix not holding enough charge for 1-2 days of hiking or not having maps (although that's not necessarily a huge requirement depending on the trail). Battery life will be better on the watches you suggested, but you're almost certainly going to be bringing a battery pack and charging a watch barely makes a dent in the capacity of a 10-20,000mah battery. I'd personally lean towards a Fenix 7s Pro or 43mm Epix 2 Pro if you have small wrists. Almost all of the features you'd use in the models you listed, but generally available for cheaper.

For years I wore a Fenix 5s and then 6s in rose gold. I have an Epix Pro Gen2 now which has a nice amoled display like the current Fenix 8 series. The Epix 42mm (same size as the Fenix s series) came in soft gold which is also attractive for women. I almost got that but I wanted a little more battery life so I went with a 47mm this time around. But the 42mm would been just fine and if I had a job where I have to dress more professionally I would have gone with that one. The Epix pro gen2 is the last generation and while not cheap, is an excellent deal since it does almost everything the current Fenix series does (certainly everything your wife wants) including the current gen HR sensor and has an amoled display. The Venu watches are okay but are more lifestyle and not true sports watches. I briefly had one and it wasn’t near as durable as the Fenix/Epix. All of these had sapphire glass because I’m not the most girly girl and am tough on my watches.

For years I wore a Fenix 5s and then 6s in rose gold. I have an Epix Pro Gen2 now which has a nice amoled display like the current Fenix 8 series. The Epix 42mm (same size as the Fenix s series) came in soft gold which is also attractive for women. I almost got that but I wanted a little more battery life so I went with a 47mm this time around. But the 42mm would been just fine and if I had a job where I have to dress more professionally I would have gone with that one. The Epix pro gen2 is the last generation and while not cheap, is an excellent deal since it does almost everything the current Fenix series does (certainly everything your wife wants) including the current gen HR sensor and has an amoled display. The Venu watches are okay but are more lifestyle and not true sports watches. I briefly had one and it wasn’t near as durable as the Fenix/Epix. All of these had sapphire glass because I’m not the most girly girl and am tough on my watches.

Obviously a Fenix 8 Micro LED. For real though, Fenix/Epix watches will give you full golf functionality minus a feature or two which are reserved for the golf specific watches. If you are budget conscious I would look for a Fenix 7/epix 2 series watch. If you have money to spend, a Fenix 8 will be great for everything you can imagine. Forerunner watches do have some golf features but they are dumbed down a bit to basic distance to green and score keeping.

If you just want a good running watch without too many extra things I would look at the Forerunner 570. If you want something a bit more “fancy”, maybe the Epix Pro 43mm. It’s a “last gen” watch so it can be got at a good price but it is still an elite fitness watch.

I am also using an AMOLED (epix pro gen 2), which replaced a fr245.  I had a tough time in some scenarios with the MIPS display, such as on shaded trails and around subset (both common in my users). In these cases I am happier with the AMOLED. 

Former AW9 user. Found I hated having basically two phones, daily charging and being paranoid about damaging it. Picked up an Epix Pro on sale and I love it. I’ll never go back to AW. Edit to add what I love: it’s way more rugged and I don’t feel paranoid about damaging it swimming, doing contruction things, etc. Even with always on display, it last almost 2 weeks. I’m not a crazy athlete but I’ve found it motivates me through the health stats to improve myself (I still workout with Apple Fitness+). The stats are super fun to look at and work through too.

But incredible watch I had the Epix pro gen 2 before I don't regret it

Well after that it depends on what you are looking for in a watch, I was at Apple for years whether it was watches, phones, tablets etc. I think he's ripping us off a lot from year to year but hey it's my humble opinion now I switched to Garmin with the Epix Pro which I still have which I should sell I bought the Ven 4 in dhestetic thermal and lighter and all the features that I need see more after these true that the Apple Watch is better in terms of health but Garmin is doing not too bad today in terms of battery let's not even talk about it 😂😂😂with  I was in an ecosystem that wasn't too disgusting but today I decided to leave maybe one day I'll come back but not for the watches the Garmins have a less new design although I find the Venu 4 nice so I advise you to take all the pros and cons and make your own opinion on which ones you really need and the budget too

I have both on right now. My Epix Pro is on my lower leg. For em it’s the stress & body battery. I prefer the rings in the Apple Watch to help me motivated to move every hour.