📟 The 16" GPSMAP display, big-screen helm navigation.
Chart Card Compatibility
This unit has a microSD card slot and runs Garmin LakeVü g3 inland lake maps and Navionics+ and Navionics Platinum+ charts. Drop in the card for your region and go.
It comes in 16", with chartplotter only, no built-in sonar. Available models: 1623, 1643. Display only.
Which model do I need?
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The maps. The US/Canada version ships with Garmin Navionics+ for the US and Canada; the Worldwide version ships with a worldwide basemap. For this series, 1623 is worldwide, 1643 is US/Canada. Choose US/Canada for fishing in North America.
- ✅ Networks over the Garmin Marine Network for sonar, radar and sharing
- ✅ Preloaded Garmin Navionics+ mapping with Auto Guidance
- ✅ Built for US inland, coastal and Great Lakes anglers
Frequently asked
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Does it come with a transducer? Display only.
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Worldwide vs US/Canada, which do I need? US/Canada ships with Garmin Navionics+ for North America. Worldwide ships with a worldwide basemap. Fishing in the US or Canada, choose US/Canada.
What's in the Box
Box contents depend on the option you choose. Check your option below before ordering.
No Transducer / Worldwide / 16":
- GPSMAP 1623 chartplotter
- microSDâ„¢ card preinstalled
- Power cable
- Flush mount kit with gasket
- Protective cover
- Trim piece snap covers
- Backbone/drop cable (2 meters) and T-connector for the NMEA 2000 network
- Documentation
No Transducer / US/Canada / 16":
- GPSMAP 1643 chartplotter
- microSDâ„¢ card preinstalled
- Power cable
- Flush mount kit with gasket
- Protective cover
- Trim piece snap covers
- Backbone/drop cable (2 meters) and T-connector for the NMEA 2000 network
- Documentation
