Garmin GPSMAP 178C

Pros: Accurate, resonably priced, sonar and gps together give more neat options

Cons: To get better gps detail, you have to buy additional data cards

Review: I bought one of these units (the non color version). I find it very helpful especially when riding my boat at night to have GPS unit. It is easy to mark good fishing spots with this unit. I think the sonar portion is really good as well which helps ...

Pros: Beautiful charting and GPS

Cons: Not ready for prime time.

The Bottom Line: Avoid until Garmin solves the shallow depth problems or count on buying another sounder to handle this.

Review: Watching the Bluewater charts integrated with the GPS is nothing short of amazing. From where I launch my boat the channel that I have to run my boat through is unmarked, maybe 40 feet wide at the max and about 1 mile long. Depths can be less than 1 foot ...

Pros: Great GPS, too bad the sounder part doesn't work very well.  It's real pretty though!

Cons: Non working sounder
Not willing to "do the right thing" and fix this lemon.

Review: Sounder never fully worked.  By the time we fisnished messing with it the warranty periord was over.  Garmin discontinued this model (wonder why) and now they want more money to fix something that never completely worked in the first ...