Bikepackers have been using on-bike GPS navigation for years. These newer devices just make it a bit easier to create routes by linking directly to your smartph

Bikepackers have been using on-bike GPS navigation for years. These newer devices just make it a bit easier to create routes by linking directly to your smartphone. The eTrex series of GPS from Garmin are more popular for long, multi-day rides because they run off AA batteries.