A mobile device to supply information, notably for tourism, to a user, has a storage device that is fragmented into sectors, each sector corresponding at least to one given geographic location and showing an address, a tracker of said device, capable of delivering positioning information, corresponding to the location wherein the device is situated, a processor capable of drawing up a reading instruction containing at least the address of the sector of the information to be supplied in relation the positioning information on the basis of one or several correspondence tables.