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GPSMAP® 2108

GPSMAP® 2108

Part Number 010-00740-01



GPSMAP 2108 chartplotter has sunlight readable and high resolution quality on an 8” SVGA (800 x 600 pixels) display, easy to flush-mounts or bail-mounts in your boat. Features designed specifically for professional fishermen at more affordable cost to larger display chartplotters. The 2108 also sports a built-in, worldwide basemap and simple, straightforward buttons and menus. You can add the optional BlueChart® g2 SD card for more enhanced map features. Except with English user interface (UI), the 2108 is the first Garmin chartplotter equipped with Asian language pack, including Traditional Chinese, Simplified Chinese, Indonesian Bahasa, Thai, and Myanmar.

Navigate with Ease

With just a few buttons and a simple, intuitive interface, the GPSMAP 2108 makes navigating virtually effortless. By connecting to the Garmin Marine Network, you can add sonar, radar, and second GSPMAP 2108 as separately individual station to expand the system. The GPSMAP 2108 has an SD™ card slot so you can add additional detailed maps worldwide without connecting to a computer.

Add Sonar

Where applicable, the GPSMAP 2108 can connect with a powerful sounder (GSD22) and dual frequency transducer that clearly paints depth contours, fish targets and structure whether you’re fishing in freshwater or off the coast. Capable of connecting to Garmin NMEA 0183 Intelliducer for various depth fathoming sensors.

Expand with Radar and Sonar

Featuring a built-in Ethernet radar & sonar port, GPSMAP 2108 can be interfaced with Garmin’s line of affordable GMR™ marine radar systems (sold separately) and GSD 22 digital sonar. Whether you’re adding radar or sonar now or in the future, you’ll enjoy the convenience of plug-and-play installation.

Physical & Performance

Unit dimensions, WxHxD 11.2" x 7.0" x 4.6" (28.5 x 17.8 x 11.7 cm)
Display size, WxH 6.9" x 5.2", 8.4" diagonal (17.5 x 13.2 cm, 21.3 cm diagonal)
Display resolution, WxH 800 x 600 pixel
Display type SVGA display
Weight 1.4 kg
Battery life  
Water rating IPX7
High-sensitivity receiver  
Antenna GA30 (included)
NMEA input/output NMEA 0183

Maps & Memory

Preloaded maps  
Ability to add maps  
Built-in memory N/A
Accepts data cards (g2 SD)
Waypoints/favorites/locations 5,000
Routes 50
Track log 35,000 points; 30 saved tracks

Features & Benefits

Garmin radar compatible  
Garmin sonar compatible  
Garmin Marine Network™ compatible  
Supports AIS (tracks target ships' position)  
Supports DSC (displays position data from DSC capable VHF radio)  
Audible alarms  
Tide tables  
Hunt/fish calendar  
Sun and moon information  
3-D map view  
Auto Guidance  
XM WX Weather & Radio for U.S. & Canada compatible  
Automatic routing (turn by turn routing on roads)  
Voice prompts (e.g. "Turn right in 500 ft.")  
Speaks street names (e.g. "Turn right ON ELM STREET in 500 ft.")  
Headphone jack/audio line-out  
Audio/video input/output  
  • GPSMAP 2108
  • GA 30 GPS Antenna
  • Bail mount
  • Power cable
  • NMEA 0183 cable
  • Protective front cover
  • Owner's manual


Download the File

Software License Agreement

By downloading, installing, or using this software, you agree to be bound by the terms and conditions of the following license agreement. Please read this agreement carefully.

Garmin Corporation ("Garmin") grants you a limited, non-exclusive license to use the upgrade software ("Software") in binary executable form in the normal operation of the applicable Garmin products. Title, ownership rights, and intellectual property rights in and to the Software remain in Garmin. This license is personal to you and you may make copies of the software only for your personal use. You agree that this license agreement does not need to be signed for it to take effect.

The software is provided on an "as is" basis without warranty of any kind — either expressed or implied — including, without limitation, any implied warranties of merchantability or fitness for a particular purpose. Garmin does not warrant the performance of the software or that the software will meet your requirements or operate error free.

You acknowledge that this Software is the property of Garmin and is protected under United States of America copyright laws and international copyright treaties. You further acknowledge that the structure, organization, and code of the Software are valuable trade secrets of Garmin and that the Software in source code form remains a valuable trade secret of Garmin. You agree not to decompile, disassemble, modify, reverse assemble, reverse engineer, or reduce to human readable form the Software or any part thereof or create any derivative works based on the Software.

You agree not to export or re-export the Software to any country in violation of the export control laws of the United States of America.


GPSMAP2108 Unit Software v4.00

DownloadDownload(4.6 MB)

GPSMAP2108 Unit Software v4.00

Change History

  1. Enlarged queue and stack size to prevent unstable IOP communication.
  2. Corrected radar transmit/standby time settings. (GPSmap 2108 only)
  3. Fixed AIS potential issue that might occur when the vessel number is larger than 256.
  4. Corrected off_course number.
  5. Improved Speed Filter
  6. Supported GPS speed & track filter function.
  7. Hid "Current" button when language is set to Simplified Chinese.
  8. Made the navigation line thinner.
  9. Created a new small dot as waypoint symbol.
  10. Improved the map cursor behavior.
  11. Supported GPZDA NMEA sentence.
  12. Used a new vessel icon.
  13. Fixed crash problem happened on the waypoint list page.
  14. Used a smaller navigation arrow.
  15. Fixed the issue of heading line displaying incorrectly at high zoom levels.

Installation Instructions

  1. Click on 'Download' and choose to save the file to your computer.
  2. Choose a location where you can easily find the file, such as the 'My Documents' folder or 'C:\'.
  3. Once the download is complete, go to the location where you saved the file.
  4. Double-click on the downloaded file. This will automatically extract the files to C:\Garmin and run a program to transfer the software update to an SD card.
  5. Power on the device.
  6. Insert the card into the card slot of your device. Select 'Update Software' in the window that automatically displays.
System Requirements: * IBM-compatible PC running Windows XP or later operating system and an available SD card reader.


This software should only be uploaded to the unit for which it is intended. If this software is uploaded to a GPS unit other than the product it is designed for, it will render the unit inoperative. If the software upload fails, and subsequent upload attempts prove unsuccessful, the unit may need to be returned to Garmin for service. Call Garmin at +886.2.26429199 ext2 or email Garmin. You may also contact Garmin authorised dealer for product support.
Before proceeding, please back up your waypoints and route data.

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