❓ Do I need a special GPS device, or can I use my phone?
A dedicated GPS receiver has a longer battery life (more than 16 hours compared to 4–6 hours), works without a cellular network, is waterproof and rugged, and features specially designed navigation functions. Cell phones can serve as a backup, but are unreliable as a primary navigation tool in the wilderness.
❓ What maps do I need for a hiking GPS?
Topographic maps with contour lines, hiking trails, and bodies of water. Most devices support downloadable maps. Free options include topographic maps based on OpenStreetMap. Premium maps offer more detailed information about hiking trails.