Bike specific GPS or car GPS with cover and mount
Let me preface this post by saying I have never owned a GPS. I am looking at Garmin because they seem to be the most common so I assume have the most maps etc.
The trip I am planning is through Northern Asia, Russia and Mongolia.
Is it worth spending big money on a Zumo model or would a Nuvi (2555LMT or 2597LMT or similar) be just as effective with a good cover. My bike has a 12v cig lighter socket so i'm not too worried about battery life.
I guess the other option is a 62/78 series but the screens look very small and hard to use.
I believe that an SD card slot is essential for adding more maps.
Thanks.
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