Technological advances have reshaped our lives with ultimate ease for reaching and exploring different locations on earth. The question is how do we access these crucial yet accurate routes within seconds. The answer to which is “SAT-NAV” devices. Sat-Nav stands for satellite navigation. Although it’s clear by the name, sat-nav device, or commonly known as GPS Navigator, is a ‘way finder’ to planning and following a particular route using satellites to give out one’s geospatial position. However, routes get interrupted time-to-time on different grounds- roadblocks, the discovery of new routes, or just jam hindrance. Your sat-nav devices need to be up-to-date with this information to be immune to such conditions. Garmin Express is one such application that caters to the concern.