When you're shopping for marine electronics sonar navigation, the decision between these two Garmin units comes down to whether you want a dedicated chartplotter at a lower listed price or a chartplotter with fishfinding built in. The GPSMAP 440S is a used Garmin chartplotter listed at USD 249.99 and includes a suncover. The GPSmap 545s is listed at USD 349.99 in new other condition and, as the title makes clear, adds fishfinder capability. That USD 100 difference is the main price question, and the answer depends on how much you need sonar.
Quick Verdict
If fishfinding is essential, the Garmin GPSmap 545s is the unit that adds that capability. If you already have a fishfinder or just need straightforward navigation, the Garmin GPSMAP 440S offers a lower listed price and a suncover.
Price Comparison
| Product | Listed Price | Price Bar |
|---|---|---|
| Garmin GPSMAP 440S Marine Boat GPS Chartplotter w/ Suncover | USD 249.99 | |
| Garmin GPSmap 545s Marine Boat GPS Chartplotter Fishfinder | USD 349.99 |
The 440S comes in at USD 100 less than the 545s, and that gap represents the practical cost of adding fishfinding to the newer unit. For an angler, the extra outlay may be worth it because the 545s can replace both a chartplotter and a separate fishfinder.
Where Each Product Wins
- Garmin GPSMAP 440S has the lower listed price and includes a suncover. It is a used chartplotter, so condition and the lack of fishfinder capability are the trade-offs.
- Garmin GPSmap 545s combines chartplotting and fishfinding in one unit. It is listed in new other condition, and the unit appears not to have been installed.
Product Notes
Garmin GPSMAP 440S Marine Boat GPS Chartplotter w/ Suncover
The 440S is the more economical listing here at USD 249.99, and it brings a suncover along with the Garmin chartplotter. If your boat already has a fishfinder or you just want reliable GPS navigation, the 440S could be a sensible pick. It is a used unit, so the condition is part of the trade-off, and the product title does not include fishfinder capability. That makes it less versatile than the 545s if angling features matter to you. The package is straightforward: Garmin chartplotting at a lower listed price, with the suncover ready to shield the screen on bright days.
Garmin GPSmap 545s Marine Boat GPS Chartplotter Fishfinder
The 545s combines chartplotting and fishfinding in one unit, which is the biggest practical reason to consider it over the 440S. It's listed at USD 349.99 and in new other condition, with the unit appearing not to have been installed. The package includes the unit and cables, but no original box, and the cover shows some scratches. So while the core unit looks largely unused, the missing box and blemished cover are the trade-offs. If you want both navigation and fishfinding without adding a second device on your helm, the 545s is the more capable option.
Final Choice by Use Case
For a boater who needs a Garmin chartplotter and prefers to spend less upfront, the GPSMAP 440S with its suncover and lower listed price is the practical match. For a boater who wants one screen to handle both navigation and fishfinding, the GPSmap 545s is the better fit, even with the higher listed price and the cosmetic caveats around the cover and original box.
