Garmin GPSMAP® 78 Handheld GPS Product Description
Navigate with Confidence on Water and Land
Picture this: you're out on the open water, casting lines or charting a course through unfamiliar bays, when suddenly your device takes a dip. No panic needed—the Garmin GPSMAP 78 handheld GPS is built to float, keeping your waypoint data safe and accessible. This rugged companion combines a vibrant color display with pinpoint accuracy, making it a go-to for boaters, kayakers, hikers, and geocachers who demand reliability in tough conditions.
Unlike bulkier marine electronics, its compact 7.7-ounce frame slips easily into a life vest or backpack, ready for spontaneous adventures. The high-sensitivity WAAS-enabled receiver locks onto satellites fast, even under tree cover or near skyscrapers, thanks to HotFix technology that predicts satellite positions for quicker fixes.
Standout Features for Everyday Explorers
The GPSMAP 78 elevates basic navigation with thoughtful details tailored to real-world use. Its 2.6-inch transflective LCD shines in direct sunlight, ensuring clear views of your worldwide basemap with shaded relief—no squinting on bright days. Dive deeper by popping in a microSD card loaded with detailed marine charts, topo maps, or roads for turn-by-turn guidance.
- Floats and Waterproof (IPX7): Submersible up to 1 meter for 30 minutes, perfect for unpredictable splashes.
- 20-Hour Battery Life: Power through full-day outings with just two AA batteries—opt for rechargeable NiMH or lithium for extended trips.
- MOB Button: Instant man-overboard marking for quick rescues.
- 1.7 GB Internal Memory: Store up to 2,000 waypoints, 200 routes, and 10,000 track points, with room for more via cards.
- Geocaching Ready: Load GPX files for paperless hunts, complete with hints, terrain data, and difficulty ratings.
Bonus tools like tide tables, sun/moon info, hunt/fish calendars, and area calculations add utility for anglers, sailors, and outdoor enthusiasts without cluttering the interface.
Versatile Mapping and Customization Options
Start exploring with the preloaded worldwide basemap, then customize endlessly. Compatible with a range of marine, topographic, and road maps on microSD cards, it overlays satellite imagery via BirdsEye or even custom maps from your own scans. Hikers love photo navigation to geotagged images, while boaters appreciate seamless integration of detailed charts for safer passages.
No unit-to-unit wireless sharing here, but USB connectivity makes data transfers straightforward. Plug into your computer to upload tracks, analyze routes on maps, or share adventures through community platforms—turning solo trips into shared stories.
Real-World Performance Specs
| Physical & Performance | Details |
|---|---|
| Dimensions (WxHxD) | 2.6" x 6.0" x 1.2" |
| Display | 2.6" diagonal, 160x240 pixels, 65K color TFT |
| Weight | 7.7 oz with batteries |
| Battery Life | Up to 20 hours |
| Waterproof Rating | IPX7; Floats |
| Maps & Memory | Details |
|---|---|
| Basemap | Worldwide with shaded relief |
| Memory | 1.7 GB internal + microSD slot |
| Waypoints/Routes/Tracks | 2,000 / 200 / 10,000 points, 200 saved tracks |
| Key Capabilities | Details |
|---|---|
| Routing | Turn-by-turn with optional maps |
| Geocaching | Paperless support |
| Tide/Sun/Moon Data | Yes |
| Custom POIs | Yes |
Perfect for Boating, Hiking, and Beyond
Boaters rely on its marine-friendly design for tide predictions and chart plotting, while hikers mark trails and calculate areas effortlessly. Geocachers save paper by loading caches directly, and anglers time outings with celestial data. Molded rubber grips ensure a secure hold during rough seas or steep climbs, blending durability with intuitive button navigation—no touchscreen glitches in wet hands.
What's Included for Quick Adventures
- GPSMAP 78 unit
- Wrist strap
- USB cable
- Quick start manual
Ready out of the box— just add batteries and hit the water or trail.
Frequently Asked Questions
Does the Garmin GPSMAP 78 float if dropped in water?
Yes, it floats upright, making it ideal for marine use and protecting your data during accidental drops.
How long does the battery last on the GPSMAP 78?
Up to 20 hours on two AA batteries, with lithium or NiMH options extending performance for multi-day trips.
Can I add custom maps to this device?
Absolutely, via the microSD slot—load marine charts, topo maps, roads, or even satellite imagery and custom scans.
Is it suitable for geocaching?
Yes, fully paperless—import GPX files for locations, hints, terrain, and descriptions directly.
What's the display like for outdoor use?
A 2.6-inch sunlight-readable color TFT with 160x240 resolution, perfect for bright conditions without glare.
Does it have tide tables or hunting calendars?
Yes, built-in tide tables, sun/moon info, and hunt/fish calendars for planning outdoor activities.
Garmin international is pleased to announce the next generation in marine handhelds: the GPSMAP 78 series. Incorporating a sleek, new design and must-have features, these rugged units are a great fit in Garmin's best-selling lineup of color marine handhelds and they float!
Featuring a bright 2.6-inch LCD color display with built-in basemap and high sensitivity GPS receiver with HotFix, the GPSMAP 78 series takes recereational navigation to a new level. All three models are waterproof, include a built-in microSD card slot for loading additional maps and have a dedicated MOB (man over board) button.
If you're looking for the ultimate high-performance marine handheld, take your pick from the GPSMAP 78 series.
Features:
- High-sensitivity, WAAS-enabled GPS receiver and HotFix
- Floats
- Rugged, waterproof (IEC 60529 IPX7)
- Worldwide built-in basemap with shaded relief
- 1.7 GB of internal memory, plus microSD card slot for optional mapping and data storage
- Bright 2.6" LCD sunlight readable color display (160 x 240 pixels)
- Up to 20 hours of battery life, battery type: 2 AA (not included) NiMH or lithium recommended
- Weight: 7.7 oz with batteries
Package Includes:
Unit, USB cable, wrist strap and quick start manual
"For boaters and watersports enthusiasts who want to run with the best, the rugged Gpsmap 78 features crisp color mapping, high-sensitivity receiver, new molded rubber side grips, plus a micro SD card slot for loading additional maps. And it floats. Explore Gpsmap 78 comes with built-in worldwide basemap, so you can navigate anywhere with ease. And, like the rest of the 78-series, the 78 is Ipx7 waterproof and even floats in water."
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Frequently Asked Questions (FAQ) About Garmin GPSMAP® 78 Handheld GPS
Who is the Garmin?How to describe Garmin GPSMAP® 78 Handheld GPS?
What is the screen size of the product?
What is the cartography brand of product?
What is the battery type?
Who is the Garmin?
How to describe Garmin GPSMAP® 78 Handheld GPS?
What is the screen size of the product?
What is the cartography brand of product?
What is the battery type?
Save $41 when you buy the Garmin GPSMAP® 78 Handheld GPS for only $158 from NVN Marine! Same day shipping before 3pm.
Garmin GPSMAP® 78 Handheld GPS Technical Specifications
| Type: | |
|---|---|
| Vendor: |
Garmin |
| Weight: |
0.75 lb |
| Battery Type: |
Alkaline |
| Built-In Memory: |
1.7 GB |
| Cartography - Preloaded: |
Yes |
| Cartography Brand: |
Garmin |
| Memory Type: |
Internal |
| Screen Size: |
2.6" |
| Screen Type: |
Color |
| User Guide: | |
| Product Manual: |
Garmin GPSMAP® 78 Handheld GPS User Reviews
Garmin GPSMAP® 78 Handheld GPS Shipping & Return
| Shipping Weight: |
0.75 lb |
|---|---|
| Box Sizes: |
2.00 (h) x 6.00 (w) x 7.00 (l) |
| Cubic Feet: |
84.0 |
| Returnable: |
Yes |
| P65: |
Yes |
For detailed shipping policy please check our Shipping Policy and you can find our Return and Refund Policy here.



