Not using your Garmin for hiking is very surprising.

Primary reason is that tracking position for the duration drains battery where Garmin can do 50hrs of it. This gives me a .gpx file of the route for future reference and passing to friends.

Second is that while tracking it's 10x easier to check current distance and elevation on a watch vs phone. I head out with a list of mileage for every notable waypoint (water, turns, elevation of passes, etc). I'm constantly checking this and only if I'm questioning my route do I pull out my phone.

Weight: Fenix is heavy- 945 is better, Coros Pace 2 even better.