The Garmin InReach Explorer (formerly Delorme InReach) is a must-have in your pack. Outside of owning a satellite phone, it’s one of the only ways to have two-way communications with friends, family, and emergency services outside of cell service. Its navigation functions have some flaws, but don’t get the InReach for that; it’s worth the cost just for the messaging and weather features. For a few hundred bucks, the Garmin InReach could save your life. It’s a no-brainer.