Garmin GPS Gamin Nuvi. Garmin Portable. GolfLogix GPS.

Garmin and Magellan both use the same map data provider, NAVTEQ. However, Garmin updates their maps much more often. They sell map updates every year for their GPS receivers. Magellan, on the other hand, only sells updated maps every 2-3 years.

I am not familiar with Garmin but my Magellan has never let me down and I have used it all over the US.