It depends on what model of TOMTOM GPS you are interested in. Both TOMTOM GPS come with lifetime map updates as well as free software updates, just like the Garmin Zumo does. The TOMTOM does not include a car cradle with the GPS, where the Garmin Zumo GPS does. The TOMTOM would be considered very comparable to the Garmin Zumo 390LM model GPS. It does not have any functionality for music, it is strictly GPS function. TOMTOM does have some nice feature, such as being able to use it in either portrait or landscape orientation, as well as both a winding road and hilly road feature that allows you to add a few more exciting roads to your trip. It is fully waterproof, as well as being very user friendly. All in all, it is a very comparable GPS, at a lower price tag. The TOMTOM Rider V5 sells for $299.95, and the newly released TOMTOM Rider 400 sells for $499.95. If there are any specific questions, feel free to direct them here, our email, or call us.