The electronics gear kit list! Bringing any sort of gear – especially electronic gear, is a fine balance between the convenience of having the resource, and the burdens of carrying it all with you. Doubly so with electronic gear, as it all requires some sort of power source to charge it all up.
For the Tour of the Highest Hundred, I brought more electronic gear than on any other ultra racing/FKT trip in my life! It was a lot to manage, but I made all my choices after much deliberation.
Although it took me a little while to warm up to the idea of using a GPS, once I got one, I found them almost indispensable. This walkthrough is my basic workflow on getting a .gpx file into my eTrex 20.