wildwanderer wrote:@bubbalouie.
Was your 5 days battery life on the Fenix 6x using the on watch maps and GPS to visualize and navigate your route for 6-7 hours each day? If so that's very impressive!
How much of the watch functionality did you need to turn off?
Could you still use compass, barometer, alitmeter, time and distance walked from nominated points and save poi in that functionality state and maintain the same good battery life? Those functions are what I mainly use on my Ambit.
I don't use wifi on it at all.
It was in navigation mode with an active track, I'd periodically switch to the map screen to check my position or see where the next important to know about bit was (POI, track turn, creek/river etc) and then scroll back to my main screen. There was always an active heading bug (little arrow thing that shows on every screen that says what direction you need).
Keeping the topo maps visible for hours at a time will use a lot more battery, so you're better off scrolling to the map, using it and then scrolling to your usual screen (whatever that is).
Altimeter is always active, and using the compass is fine, as are recording POIs and doing laps. Track logging was pretty high frequency (I think once per second), I also had the HRM on (blood oxygen sensor off though). I also carried a Tempe, though admittedly my only point of interest for that is the overnight low.
I believe you can add am extra 30% if you adjust your power mode for hiking to disable the wrist HR and disconnect from the phone. I didn't test the theory as I like seeing the HR data, that 30% just comes from the watch estimating that you'll get 80 hours if you do that.
Other than that I was using all the features relevant to hiking, I hadn't turned anything off as such (I didn't customise the power profile for the hiking mode). I definitely wasn't using Bluetooth music playback and I'd put my phone in flight mode.
Incidentally, you can send a GPX route from your phone to the watch if you use and app (on the watch) like gimporter.