Garmin Vs. Si-Tex

Review over at Powerboat Reports. In short the conclusion is that if you�ve got the space, consider Si-Tex�s Dynamic Duo, a plotter and sounder with separate screens that sells for about the same as the Garmin 188C, which is perfect for boats with limited room at the helm.
“Chartplotter/sounder combo units take up less console space and usually cost less than separate pieces. But if the combo breaks down, you�ve lost two important instruments at once. Not good.”