Before you mount anything at the helm, decide what the screen is for: charts or sonar. That question separates two Garmin units in marine electronics sonar navigation. The Garmin GPSMAP 440S is a GPS chartplotter, boxed with a suncover, mount, and power cord. The Garmin Fishfinder 160C is an echo sounder sonar fish finder. One costs more; the other costs less. Your boating style should be the tiebreaker.
Quick verdict
Pick the Garmin GPSMAP 440S when GPS chartplotting is the reason you are buying marine electronics. Pick the Garmin Fishfinder 160C when sonar is the priority and you want to keep the upfront spend lower.
Comparison table
| Product | Condition | Best for | Price | Price bar |
|---|---|---|---|---|
| Garmin GPSMAP 440S Marine Boat GPS Chartplotter With Suncover With Mount | Used | GPS chartplotter with included mount and suncover | USD 279.99 | |
| Garmin Fishfinder 160C Marine Boat Echo Sounder Sonar Fish Finder | New other | Echo sounder sonar fish finder | USD 175.00 |
Where each product wins
The Garmin GPSMAP 440S wins for navigation-first boaters. Its GPS chartplotter role makes it the clearer choice if you want your position relative to a chart at the center of the helm. The Garmin Fishfinder 160C wins for anglers who want a tool that is specifically about seeing below the boat. Its echo sounder sonar focus is more direct when fish-finding is the main job, and the lower price keeps the upfront spend lower.
Product notes
Garmin GPSMAP 440S Marine Boat GPS Chartplotter With Suncover With Mount
This used Garmin GPSMAP 440S costs USD 279.99 and puts the focus on chart navigation. It comes with the suncover, mount, and power cord, so the basics for installing it at the helm are part of the deal. If your typical day on the water is about navigating by chart and GPS position, this unit aligns with that workflow. The trade-off is the condition: it is a used unit rather than new open box, so the price needs to feel right for a product that has already left the original sealed packaging. If chartplotting is your main screen and you are comfortable with used electronics, this is the stronger of the two choices.
Garmin Fishfinder 160C Marine Boat Echo Sounder Sonar Fish Finder
The Garmin Fishfinder 160C costs USD 175.00 and arrives in new open-box condition. Its echo sounder sonar role is the reason to choose it: the screen is built around what is below the boat, and the price is lower than the GPSMAP 440S. That makes it the easier choice when the budget is a deciding factor and sonar is the main event. The trade-off to weigh is the open-box status: the unit has been opened, so the price reflects that instead of a sealed retail package. If you are comfortable with an opened item, the lower price works in your favor.
Final choice by use case
For the navigation-first boater, the Garmin GPSMAP 440S is the clear pick because chartplotting is the product's stated role. For the sonar-first angler, the Garmin Fishfinder 160C is the better fit at a lower price. If your budget is the hard limit, the Fishfinder 160C keeps the upfront outlay down; if your screen needs to do navigation, the GPSMAP 440S should be on your short list.
