Garmin GPSMAP-66ST user manual

As of now, there has been no official announcement regarding a direct replacement for the Garmin GPSMAP 66st. The GPSMAP 66st is still considered one of Garmin's flagship handheld GPS devices and is widely used and appreciated by outdoor enthusiasts. However, Garmin regularly updates and releases new models, so it is possible that a successor to the GPSMAP 66st may be introduced in the future.

As of September 2021, there is no official announcement regarding the discontinuation of the Garmin GPSMAP 66st. However, it's worth noting that manufacturers frequently update their product lineup, so it's always a good idea to check with authorized retailers or Garmin directly for the most up-to-date information.

The Garmin GPSMAP 66st is an upgraded version of the Garmin GPSMAP 64st, and it comes with several key differences:
1. Design: The GPSMAP 66st features a larger and more vibrant 3-inch color display as compared to the smaller 2.6-inch display on the GPSMAP 64st. The GPSMAP 66st also has a more ruggedized design, with a beefier build that is more resistant to impact, water, and dust.
2. Antenna: The GPSMAP 66st is equipped with an additional high-sensitivity quad helix antenna, providing better GPS reception and tracking in challenging environments, such as dense forests or canyons.
3. Sensors: While both devices have a built-in 3-axis compass and barometric altimeter, the GPSMAP 66st has an added feature of an accelerometer, which enables it to accurately measure speed and distance when indoors or beneath tree cover.
4. Mapping: Both devices come preloaded with TOPO maps, but the GPSMAP 66st has a larger internal memory capacity, allowing it to hold more detailed maps and satellite imagery. The GPSMAP 66st also supports BirdsEye Satellite Imagery, which can be downloaded and overlayed onto the maps.
5. Connectivity: The GPSMAP 66st has wireless connectivity capabilities via Bluetooth and ANT+, allowing it to sync wirelessly with compatible devices, such as smartphones or wireless sensors. It can also connect to the Garmin Explore mobile app for additional features and data sharing.
Overall, the Garmin GPSMAP 66st is a more advanced and feature-rich handheld GPS device compared to the GPSMAP 64st, with improvements in design, antenna, sensors, mapping capabilities, and connectivity.

The Garmin GPSMAP 66s and 66st are both handheld GPS devices with similar features, but the main difference between them lies in the included preloaded maps.
The Garmin GPSMAP 66s comes with a built-in worldwide basemap, which provides general map coverage without detailed topographic information. This makes it suitable for basic navigation needs.
On the other hand, the Garmin GPSMAP 66st includes preloaded topographic maps. These detailed maps offer contour lines, elevation information, and topographic features like rivers, forests, and trails. They provide more comprehensive and specific information for outdoor enthusiasts, hikers, and backpackers.
In summary, the main distinction between the 66s and 66st models is that the latter includes preloaded topographic maps, while the former only has a basic worldwide basemap.