I added a Garmin Montana (BMW Adventure Nav) to my bike, so that I wouldn’t run in to those issues again. The Garmin Montana is a very aged device, but its really good at a few things. It doesn’t fail in the rain, it can stay on my bike all the time locked in with a security screw, and its really good at tracked based navigating. I set up my iPhone on a mount right next to the Montana, and used both devices.

The problem I noticed is that I end up only using the iPhone, and the Montana is just there as a backup for extreme weather or as a safety net. The software on the Montana isn’t great, the screen is small, and its not bright enough. Other more “modern” Garmin Nav’s are not good at track based navigating, especially when it comes to displaying waypoints/bookmarks. The Montana will show the waypoint name on the map, where other Garmins do not. In addition, Waze or Google maps are always better than any Garmin based navigation.