A medical cellular device for use during travel is described. The device includes a call module, a geographic location determining module, and an application containing personal medical information, a database of emergency numbers and corresponding geographic locations, and a security module for selectively controlling display of the personal medical information on the device. The device allows an emergency number to be selected from the database of emergency numbers according to a geographic location of the device determined from the geographic location determining module. The call module is configured to transmit a signal from the device to the selected emergency number. The application is configured to lock access to the personal medical information. In embodiments, the personal medical information and/or instructions that medical help is needed can be transmitted to the selected emergency number as well.