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Garmin GPSMAP 79s

Product Codes: GAR79S

The new Garmin GPSMAP 79s marine GPS handheld features a 3-inch Transflective, 65,000 colour TFT display and a 3-axis tilt-compensated electronic compass shows your heading - even while the boat is standing still.

The Garmin GPSMAP 79s provides more memory than previous models e.g. Garmin GPSMAP 78s means you can save and track 10,000 waypoints, 250 routes and 300 fitness activity file sand supports paperless geocaching using GPX files.

In addition, the GPSMAP 79s ultilises multiple satellite constellations including GPS, GLONASS, Beidou, Galileo, QZSS and SBAS. The result you receive accurate, reliable tracking and positioning around the world.

The Garmin GPSMAP 79s is fogproof, waterproof to a water rating of IPX7, and what's more it also floats on water too.

The Garmin GPSMAP 79s is powered via 2 AA batteries (not included) providing you with up to 19 hours of battery life in GPS mode.

A worldwide basemap is included and additional Garmin GPSMAP 79s maps are available to further enhance the marine handhelds capabilities, e.g. Garmin BlueChart g3 marine charts are perfect for navigating the waters and coastline on a dinghy, yacht or boat.


Garmin GPSMAP 79s - £299.99


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New for late 2021, the Garmin GPSMAP 79s is a premium marine handheld GPS device designed for use on water. Slim and lightweight, its dimensions are 67mm wide, 174mm in height and 42mm deep and features a transflective 65K TFT colour 3-inch diagonal sized screen. The Garmin GPSMAP 79s is powered via 2x AA batteries or NiMH or Lithium battery (batteries not included) with a battery life of 19 hours in GPS mode.

The GPSMAP 79s marine handheld is not only waterproof to IPX 7 standards but also float on water. Additionally the GPSMAP 79s SD/microSD card slot is located inside the water-tight battery compartment so you can add more mapping capabilities to the device without being concerned about water damage.

The Garmin GPSMAP 79s utlises multi-band GNSS (Global Navigation Satellite System) technology with suport from multiple satellite constellations; GPS (Global Positioning System), GLONASS (Global Navigation Satellite System), GALILEO (European Space Agency), Beidou (BeiDou Navigation Satellite System), QZSS (Quasi-Zenith Satellite System) and SBAS (Satellite Based Augmentation Systems). The benefit means you receive optimal accuracy, reliable tracking and positioning around the world.

Garmin GPSMAP 79s Optional Maps and Charts

The Garmin GPSMAP 79s is preloaded with a Worldwide basemap. However, a number of other maps/charts supplied on SD/microSD Card are also compatible including street-level road maps - perfect for cycling of using your GPSMAP 79s in a car. 1:50K Great Britain TOPO and 1:25K Great Britain TOPO, along with other topographical maps - ideal for hiking and walking the countryside of Great Britain. Take to the seas around the UK, Europe and further afield with the Garmin BlueChart g3 range of marine cartography chart SD/microSD cards. View compatible GPSMAP 79s Garmin BlueChart g3 titles. (Please note: the GPSMAP 79s cannot provide water-depth data). Available Garmin g3 BlueChart titles for UK waters include: Scotland, West Coast, English Channel and Irish Sea.

The Garmin GPSMAP 79s provides more memory than previous models e.g. Garmin GPSMAP 78s means you can save and track 10,000 waypoints, 250 routes and 300 fitness activity file sand supports paperless geocaching using GPX files. The Garmin GPSMAP 79s features a built-in memory of 8GB.

Garmin GPSMAP 79s Features

‣Transflective 3-inch LCD sunlight readable colour display (240 x 400 pixels)
‣Built-in Worldwide basemap
‣3-axis compass and barometric altimeter
‣Quad helix antenna and multi-GNSS support (GPS, GLONASS and Galileo)
‣Rugged, waterproof (IEC 60529 IPX7)
‣Floats on water
‣microSD card slot for optional mapping
‣Up to 19 hours of battery life, battery type: 2 AA batteries (not included) NiMH or Lithium recommended
‣High speed microUSB
‣NMEA 0183 compatible
‣2 year guarantee

Map Coverage

Garmin GPSMAP 79s are preloaded with a basemap. Please note: Additional maps can be loaded into the GPSMAP 79s. The Garmin GPSMAP 79s both feature an /microSD Card slot, an easy way to add new maps and mapping updates. Learn more about the different Garmin GPSMAP 79s maps.

What's in the box? (when purchased from

‣Garmin GPSMAP 79s
‣USB cable
‣Quick start manual

Garmin GPSMAP 79s Accessories

Looking for accessories and spares for the Garmin GPSMAP 79s? Accessories available to purchase include a carrying case, handlebar mount and friction mount. Along with these accessories, it is also possible to buy replacement parts such as belt clip and mains charger. View all Garmin GPSMAP 79s accessories.

Garmin GPSMAP 79s Soft Carrying Case


‣Safely store your Garmin GPSMAP 79s when you're not using it with this Garmin branded soft carrying case.

Garmin GPSMAP 66 Adjustable Handheld Mount


‣Mount your Garmin GPSMAP 66i, 66s, 66st or GPSMAP 66sr to any flat surface with this adjustable mount.

Garmin GPSMAP 66 Auto Friction Mount Kit


‣Portable friction mount for your dashboard. Easy to use and remove from your vehicle, no adhesion, no marks on your dashboard.

Garmin GPSMAP 79s Maps

The Garmin GPSMAP 79s is preloaded with a basemap. If you intend to use the Garmin GPSMAP 79s for use on the water/seas around the UK, Europe you need the marine Garmin BlueChart g3 series. For walking/hiking, then the best maps you can buy are the Garmin TOPO map series. In addition the Garmin GPSMAP 79s is also compatible with both the Garmin City Navigator (street-level road map) series perfect for driving and/or road cycling and Learn more about the different Garmin GPSMAP 79s maps.

Garmin GPSMAP 79s g3 BlueCharts

‣BlueCharts for boats and yachts
‣Read more about g3 BlueCharts

Garmin GPSMAP 79s Topographical Maps

‣Explore 1:25K or 1:50K the UK and Europe with Topographical mapping
‣Read more about Topographical maps

Garmin GPSMAP 79s City Navigator Maps

‣City Navigator Street-Level maps is available for world countries and regions
‣Read more about Garmin City Navigator maps

Garmin GPSMAP 79s Technical Specification

‣Display: Transflective, 65K colour TFT (240 x 400 pixels)
‣Touchscreen: No
‣Battery: 2 AA batteries (not included); NiMH or Lithium recommended
‣Battery Life: Up to 19 hours
‣Waypoints/favourites/locations: 10,000
‣Tracks: 250
‣Track Log: 20,000 points, 250 saved gpx tracks, 300 saved fit activities
‣Routes: 250, 250 points per route; 50 points auto routing
‣Basemap: Yes
‣Built-in memory: 8GB
‣Accepts data cards: microSD card
‣Waterproof: Yes, IPX7
‣Dimensions: Width - 67mm, Height - 174mm, Depth - 42mm
‣Weight: 282grams (with batteries)
‣Guarantee: 2-year
Garmin GPSMAP 79s manual

Manual requires Adobe Acrobat Reader

This product is a sophisticated electronic device which requires that you read, understand, and act upon the information given in the instruction manual (usually available via the above 'manual' link). You will need internet access and, in accordance with the manufacturers’ recommendations, regularly seek out and accept all firmware or software updates offered by the manufacturer. All GPS devices need to ‘see’ the satellites in the sky. Therefore you will need to know that your vehicle does not have glass that will block or impede the GPS signal.

Updates to this product are via the internet. At this product page we state compatibility with specific versions of current internet connection devices, for example: PC, laptop, MAC, smartphone etc. The Consumer Contract Regulations allow you 14 days, from receipt of purchase, to check compatibility with your internet connection device/s. If you choose to replace or update your PC, MAC etc. neither we nor the manufacturer will be responsible if the new/replacement Operating System (OS) is not compatible with the purchased product.

Why buy from us?

We are official Authorised Internet Retailers for Garmin. We sell genuine Garmin products, accessories and maps. We purchase from assigned Garmin UK distributors. We do not buy on the grey market and we do not sell counterfeit products. You can rest assured that by purchasing from ActiveGPS you will receive the full support of Garmin.

Page last reviewed: 21st May 2024

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