TomTom GPS devices are designed to accommodate regular upgrades, allowing owners to personalize their devices and keep maps up-to-date. You can download maps directly from TomTom to supported devices, such as the TomTom One. In addition, TomTom’s HOME software can be used to download maps, store them on your computer and transfer them to and from the GPS device as needed. Writer Bio

How to Download Maps on a TomTom One  8 Steps  - 2