Raymarine Dragonfly 7 Pro vs. Raymarine a78?

When I bought the 2017 Outback, I was intent of getting the Lowrance Elite-7 Ti.  It turns out that I may be able to get a smokin deal on a Raymarine unit.  The obvious choice is the Dragonfly 7 Pro, but would moving up to the a78 be overkill?  I would like the touchscreen.  Not sure about how the chart speed compares on both units.  a78 is 5Hz, but I can't find a spec for the Dragonfly.  Mounting seems like it would be a tad more difficult with the a78.  BerleyPro already confirmed that their mount will work with the a78's CPT-100 transducer.  a78 = 2 year warranty vs. 1 year with Dragonfly.  a78 comes with sun cover and its not available for the pedestal mount Dragonfly.

Any other pros & cons other than price?  Would I have to cut off the NMEA 2000 cable as it would be useless on a kayak?

When I bought the 2017 Outback, I was intent of getting the Lowrance Elite-7 Ti.  It turns out that I may be able to get a smokin deal on a Raymarine unit.  The obvious choice is the Dragonfly 7 Pro, but would moving up to the a78 be overkill?  I would like the touchscreen.  Not sure about how the chart speed compares on both units.  a78 is 5Hz, but I can't find a spec for the Dragonfly.  Mounting seems like it would be a tad more difficult with the a78.  BerleyPro already confirmed that their mount will work with the a78's CPT-100 transducer.  a78 = 2 year warranty vs. 1 year with Dragonfly.  a78 comes with sun cover and its not available for the pedestal mount Dragonfly.

Any other pros & cons other than price?  Would I have to cut off the NMEA 2000 cable as it would be useless on a kayak?

Without knowing any of the specs on the a78, I can tell you that wet hands and touch screens don't normally mix. Kayaks and wet hands go together like peas and carrots.


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The a78 appears to have been discontinued by Raymarine, but that alone wouldn't be a deal breaker for me if I were in the market for a new finder.