difference between hdi and hds charts?

Up grading sounder and gps in the new boat and I was wondering if it was worth spending the extra $$$ to get the hds? Are the charts any better on the hds compared to the hdi? I will be using the unit as a combo until I get a furuno sounder... the Lowrance will then become a dedicated gps/plotter... boat currently has a Garmin 551s  (know nothing about these units)


Flaminghedgehog's picture

Posts: 58

Date Joined: 19/04/15

I believe the HDI can display

Thu, 2016-06-02 18:23

I believe the HDI can display Navionics silver/gold maps wheras the HDS is compatible with those and also Navionics+ and Platinum maps (ie bathymetric detail). The bathymetric maps are much more detailed.

Posts: 23

Date Joined: 01/01/70

 Ahh ok cheers mate 

Thu, 2016-06-02 19:56

 Ahh ok cheers mate