I have a Fenix 5 and although it looks cool... I’m not impressed with anything it does... watch technology ain’t ever guna catch up to IPhones... the temperature of ur wrist!? Wow useful... have tried EVERY possible adjustment for elevation and it’s a joke. I work on a boat and no matter how it’s set,, it will end up telling me I’m somewhere between + or - 100 feet from day to day... when driving up or down a mountain it will be anywhere from 500-1500’ off becuz it just doesn’t update very fast.. it struggles to ever connect to satellites.,, the mileage varies from other apps big time so I can’t say I even trust that..
I have a Fenix 5, and haven't experienced those issues \ my expectations on performance may be different...
If I may, I just want to point out a few things. The temperature read out comes from weather forecasts from your phone rather than a sensor on the watch - so it's the same you would get from a weather app (at least thats the case for my Fenix5). (EDIT - my bad, I thought you were talking about the weather app rather than a temperature app - for that you have to pair an external sensor, or just take your watch off for a while so your body heat doesn't impact the reading)
As for the elevation issue, the Fenix like other ABC watches, uses barometric pressure to estimate your altitude, so as the weather changes, it's guess of your altitude will change. The way I combat that is to calibrate the altimeter the same day I know that I'll want that information. Elevation is more of a curiosity for me, so I personally don't find that to be very problematic.
When you use the tracking function, you can set it for continuous tracking which will constantly update your location and alt, or you can set up UltraTrac and it will update less frequently in order to preserve battery life, while still providing good information, but maybe that is something you might want to adjust?
But you're right... for hard data at your fingertips, it's pretty much impossible to beat OnX or smilar apps on your phone.
As for the other functions, I've found mine to work really well. I use the mark location feature regularly, so I know where my car/camp/or where I left trail is located and can always find my way back. I also love the compass feature. The storm alert is also helpful, and has helped me at least a few times when I wasn't aware of the change in forecast. And I find the text/phone alerts helpful because sometimes I just don't hear/feel my phone go off. Finally, the battery life is great (about 3 weeks with lite use). And for me at least, it gets it's GPS signal as well as pretty much any other hand held I've used (but I've only used a handful of other gps watches/devices so my sample pool is limited).
The step count feature usually works great, unless you're using trekking poles - but other than that I LOVE the thing and I'm not at all a fan of digital watches.
OP - for me at least, I can't recommend this thing enough, but like Block said, your mileage may vary.
Cheers to both of ya
