Goofy Footer 536 Posted January 8, 2017 The 600 has GPS The 610 has GLONASS Is it worth the extra cost? http://www.gpscentral.ca/products/garmin/montanaseriescomparison.html https://en.wikipedia.org/wiki/GLONASS http://www.makeuseof.com/tag/glonass-gps-alternative-never-knew-existed/ Share this post Link to post Share on other sites
PastaPilot 17 Posted January 9, 2017 No. Glonass is Russian GPS. Unless you plan to ride in that part of the world... Share this post Link to post Share on other sites
Goofy Footer 536 Posted January 9, 2017 Copy that Pasta. The 600 has been discontinued by Garmin. Share this post Link to post Share on other sites
Goofy Footer 536 Posted January 9, 2017 What Montana models are SDAR members using? Share this post Link to post Share on other sites
PastaPilot 17 Posted January 10, 2017 I didn't check your links earlier. Your words made it sound like the 600 was GPS and 610 GLONASS only. Your posted links told you all you'll need to know. The 610 working both systems essentially doubles the number of available satellites for positioning giving you a location quicker, not any more accuarate location, but quicker triangulation during start up. I use an ancient etrex. It is GPS and WAAS enabled. Nothing pretty, has a small screen, but it works. Share this post Link to post Share on other sites