Hey, I am Eric Bana a Senior Developer in IT Company. So If You Want any Map Updates Help then You Can Pin me Anytime When You Become Suitable. Majorly the Garmin Device is Used as a Map Device. You Can Buy the Garmin Watch Map Device, Golf Map Device, Garmin Car Map Device, Etc. If You Also Want to Garmin Map Services then You Can Buy the Map Device From the Official Website of Garmin. But If You Have Already the Garmin Map Device then Garmin GPS Update is a Big Question For You, But Don't Worry You Can Update It through the Garmin Latest Map Update that is available on the Official Garmin Website.