The three devices - the N71, N80 and N92 models - are additions to Nokia's N-series, aimed at the premium end of the market.
The N71 will allow Internet browsing, music playing as well as extra storage with memory cards.
Nokia's Multimedia division general manager Anssi Vanjoki told a conference in Barcelona the phone would be a "true Internet device", with a sizeable screen, 3G technology and ability to use wireless broadband.
The N80 will allow users to share videos and photos through their television sets and play music on their home stereo system. The N92 mobile TV will have a 2.8 inch (7.1 cm) screen, and be able to use DVB-H (Digital Video Broadband-Handheld) - technology.