If you're upgrading your boat's sonar setup, here are a few other reasons to make sure your next device includes GPS features.
Choose the right radio for your boat
The Leading Marine GPSes for Boats in 2024 - Sail Review
BlueBoat - USV for Hydrographic Surveys and Robotics
What kind of marine audio system is right for your boat?
Lowrance Ultimate Fishing System
3 Reasons Your Boat Needs a Marine GPS
Worldwide Basemap
GPSMAP® 1222
Garmin GPSMAP 79s, Marine GPS Handheld with Worldwide Basemap, Rugged Design and Floats in Water : Electronics
Pros and Cons of GPS on a Boat