The TomTom One XL is a very sturdy and straight forward device. It is regarded as an entry level model, therefore it does not have a vast array of features but it has all the key ones to get the job done. The TomTom One XL maps cover all of the United States and Canada. Unlikely its predecessor, the TomTom One XL has a 4.3 inch widescreen display which is well suited to navigating your way through built up areas.