Choosing Between the Garmin GPSMAP 276C and GPSMAP 78sc
When you're shopping for a used marine GPS, the first decision is usually about form factor: do you want a unit that stays mounted at the helm with all the cables and brackets, or a handheld that you can carry on deck, in a dinghy, or ashore? The Garmin GPSMAP 276C and Garmin GPSMAP 78sc represent those two approaches, with different listed prices and very different included items.
Quick verdict
If you're after a chartplotter that arrives with a full kit of mounts and chargers, the Garmin GPSMAP 276C is the one to look at, as long as you're ready to deal with a battery replacement. If you'd rather have a waterproof, portable GPS with a compass and expandable memory at a lower price, the Garmin GPSMAP 78sc is the more practical pick.
Listed price and key features
| Product | Listed Price | Condition | Notable Features |
|---|---|---|---|
| Garmin GPSMAP 276C | USD 349.00 | Used | Color chartplotter, includes dash mount, portable mount, and chargers |
| Garmin GPSMAP 78sc | USD 120.00 | Used | Waterproof, 2.6" screen, 3-axis compass, expandable memory, USB |
The 276C is listed at USD 349.00, while the 78sc is listed at USD 120.00. Both are used Garmin navigators with Taiwan as the country of origin.
Where the Garmin GPSMAP 276C fits best
- You want a chartplotter with a complete set of installation accessories included.
- You prefer a clear bright color screen for a fixed helm position.
- You're prepared to replace the battery after purchase.
Where the Garmin GPSMAP 78sc fits best
- You want a portable, waterproof GPS that can go from the helm to the dock.
- You value a built-in 3-axis compass, expandable memory, and USB connectivity.
- You're looking for the lower listed price of the two.
Product notes
#### Garmin GPSMAP 276C
The 276C is a used color chartplotter that comes with a carrying bag, dash mount, portable mount, a cigarette lighter charger with speaker, a hard wired adapter, and a 120V adapter charger. That's a ready-to-install package for someone who wants to set the unit in a fixed spot on the boat. The screen is described as clear and bright. The main drawback is the battery: the title states it needs a battery, and the listing says a new battery is likely needed. At a listed price of USD 349.00, you're paying for the accessory bundle and the larger chartplotter capability. If you want a single kit with everything for a cockpit installation, this covers the essentials.
#### Garmin GPSMAP 78sc
The 78sc is a portable, waterproof marine GPS with a 2.6-inch color LCD and a 3-axis compass. It also has an internal GPS antenna, expandable memory, geocaching mode, and points of interest. USB connectivity allows easy data transfer. It's built for handheld use in wet conditions. The listing notes that no charger is included and the item is an "as is" final sale. For its listed price of USD 120.00, it's the more economical way to get a feature-packed handheld navigator. Expandable memory gives you room to add more maps, and the waterproof build adds peace of mind when spray or rain is likely.
Final choice by use case
If you need a helm-mounted chartplotter with mounts and adapters included and you're willing to replace the battery, the Garmin GPSMAP 276C is the obvious candidate. If you prefer a carry-anywhere, waterproof GPS with a compass and memory expansion, and you want the lower listed price, go with the Garmin GPSMAP 78sc.
