Garmin GPSMAP 78s


Garmin GPSMAP 78s

See available Handheld GPS


Show Description

For watersports enthusiasts who want a rugged GPS for use on lakes, rivers, ponds, and oceans anywhere around the globe. It has a built-in worldwide basemap, so you can navigate in remote places with aplomb. The unit has crisp color mapping, a high-sensitivity receiver, and moulded rubber grips that help you hold it in rough seas. And it floats if it slips from your grasp.

  • MicroSD card slot lets you load additional maps.
  • 3-axis tilt compensated compass.
  • IP X7 waterproof rating.
  • Compatible with Bluechart g2 Canada microSD card that contains full coverage of Canada's east and west coasts, and the St. Lawrence/Great Lakes regions.
  • Garmin Home Port SD/microSD card lets you manage your trip on a computer and share waypoints and routes with your handheld device.

Tech specs

Show Tech specs
Display dimensions 5.5 x 3.6cm
IPX rating

Indicates the degree of protection against liquid. IP X1: Dripping water while in normal operating orientation; IP X4: Splashing water; IP X5: Water jets; IP X6: Powerful water jets; IP X7: Immersion up to 1m ≤ 30 minutes; IP X8: Suitable for submersion as specified by manufacturer.

Built-in memory 1.7GB
Dimensions 15 x 6.6 x 3cm
Electronic compass

An electronic compass allows the user to view their heading in situations where they are either standing still or moving too slowly for the GPS to detect.


Waypoints consist of a standard set of coordinates (two for land, three for air or space) that identify a specific physical location. A route is navigated between two or more waypoints.

Display type Transflective colour TFT
Interface USB and NMEA 0183
Unit to unit transfer

Shares data wirelessly between compatible units.


A basic set of map data that is included with the GPS. Basemap detail may vary from unit to unit.

Area calculation Yes
Track log 10,000 points, 200 saved tracks
Tide tables Yes
Data card microSD card (not included)
Garmin Connect

An online community where members upload, analyze and share activity data.

Add maps capability

These units allow you to add maps, so you can mark and name waypoints and create routes on your PC, and then upload the map of your choice to your GPS.

Touch screen No
Barometric altimeter

Barometer function helps forecast weather trends. An altimeter can provide one line of position for location on a topo map, useful if the GPS isn't working.

Floats Yes
Batteries 2 AA (not included)
Routes 200
Speed/cadence sensor

Monitors pedalling cadence and measures pedalling strokes per minute.

Not compatible
Battery life 20 h
Chest strap Not compatible
Custom POI

A POI (point of interest) is a specific location that someone may find interesting (i.e., favourite viewpoint, best coffee stop before the trailhead). The custom POI feature allows the user to load only the POI's that interest them onto their GPS unit.

Made in Taiwan