These tablets are slightly better than the pure GPS units, because it use GSM networks' A-GPS (assisted) and plus also can use wi-fi as additional location sources. That means it works in-door and e.g. in underground car-parks. The tablets also can do change of navigational software, e.g. Papago Google Route-66 Sygic plus Streetdirectory.com ATM finders etc. (I am waiting for some one to write a Toilet-Finder App
) It can google search things that you can not find in directories, and use Google's Satelite view & street view to help.