[riversflow]

I mean, I tend to agree. FWIW, most people who do UL Backpacking use a smartphone for maps and a UL battery. I've taken my Apple Watch backpacking with me before, and keeping it charged wasn't a thing. Just one extra (short) cable to bring, I'd put it on the battery during dinner and camp setup.

The thing is though, I've only found it really useful if I'm doing stiff ascents and am not comfortable with my training. Mostly just to keep an eye on my heartrate, if my training/preparations are adequate for my trip, I don't use it at all.