GOOD AFTERNOON, I AM USING TWO GPS TRACKER IN MY CAR, COBAN 103A AND 403-A, THE FIRST IS 3G AND THE SECOND 4G, WHEN I GO TO THE PLATFORM, THE 103A POINTS OUT ALL THE CROSSINGS IT MAKES IN THE STREETS, INSTEAD THE 403A IT POINTS DIRECT LINES TOWARDS ITS DESTINATION WITHOUT TAKING INTO ACCOUNT THE ROAD, THEREFORE THE 103A MARKS A GREATER MILEAGE WHICH IS CORRECT AND THE 403A MARKS A LESSER MILEAGE, DO YOU KNOW WHAT IS THE CAUSE OF THIS DIFFERENCE? THANK YOU FOR YOUR ATTENTION .