Abstract: A wearable personal/medical information device includes a data display with an associated legend display. A memory stores items of personal and/or medical information relating to the person wearing the device. Upon operation of a switch, the stored information is displayed with the personal/medical information indicated by the data display, and a corresponding legend indicated by the legend display. In a preferred embodiment, certain data such as medical information is preset in a read only memory, and other data which the user may change from time-to-time is stored in a read/write memory.