When you’re running the tight confines of a wily inlet at zero-dark-thirty or navigating through a maze of submerged hazards, an easy-to-read chartplotter can be your best friend. When you combine modern chartplotting features with a high-resolution sounder in the same box, you’ve got a powerful piece of technology at your fingertips. That is exactly what we are testing here.

Testers evaluated each unit for viewability from various angles during the day and at night. From left: The Furuno GP-7000F, the JRC Plot 500F, the Navman Trackfish 6600, the Simrad CX33-E, and the SI-TEX ColorMax Wide.

What We Tested

In this month’s continuation of our plotter/sounder combo review, we look at units with color screens from 6 to 7 inches on the diagonal. We tested five machines from five manufacturers: the Furuno GP-7000F, the JRC Plot 500F, the Navman Trackfish 6600, the Simrad CX33-E, and the SI-TEX…