What model of Garmin GPS should I use? Which one is best suited for the RVO?

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There are 3 series of GARMIN GPS that are recommended for the RVO:

The EDGE 500/510/520 SERIES ARE NOT USEABLE ON THE RVO as they cannot display tracks

The discontinued ranges of – EDGE (705/605) and eTrex Legend HCX & Vista HCX are useable but not recommended.

The Edge 705/605 is a Training Monitor better suited for road cycling, to monitor personal performance metrics. For the RVO, the Edge 705/605 has a very limited tracking function, it’s map screen is very small with poor resolution, thereby challenging for quick and precise navigation out on the forest trails.