My 4 year old raymarine a70d has thrown in the towel and no longer picks up satellites needless to say this is my first and last raymarine product.
Anyway I'm looking for a new chart plotter and local word is garmin is good. I went to their website and did some google searching and got completely lost. Seems like there is a garmin eachomap dv range then there is a eachomap 50s and then there is a gps map 451. I cannot work out what the difference is between them? I just want a chart plotter not interested in the depth sounding features can anyone help me work out the difference ? My raymarine has a navionics gold card can I use this on the garmin as this cost me a couple hundred bbucks and would rather keep it?