Three pros and a weekend bass angler review the best side-imaging fish finders from Humminbird, Garmin, and Lowrance.

Side imaging fish finders help locate fish and structure while also mapping depth. These are the best we've tested from Humminbird, Garmin, Lowrance, and Simrad.

The expert anglers at Milliken Fishing provide an easy-to-follow guide for using side imaging and live sonar to find bass.