An object is to implement automatic selection of an optimal combination of a communication network with a web browser according to a connection environment, thereby improving user's convenience during browsing a website. A cell phone 1 achieving this object is composed of a first browser 17 for browsing web data described in cHTML; a second browser 18 for browsing web data described in HTML; a radio information collector 11 for acquiring radio intensity information about a base station device 2A and an access point 2B; a communication network selector 13 for selecting a communication network,based on the radio intensity information; a data transmitter-receiver 14 for receiving web data from a WWW server 3 via the selected communication network; a browser selector 15 for determining a description language of the web data and thereby selecting either of the first browser 17 and the second browser 18; and a data output controller 16 for outputting the web data to the selected browser.