A method by which a wearable device displays content and a wearable device therefor are provided. The method includes authorizing a user wearing the wearable device, identifying a first key layout of an input device connected to an electronic device used by the authorized user, generating mapping information in which at least one key in the first key layout is mapped to a different key, displaying, on a display of the wearable device, a second key layout in which the first key layout is mapped according to the mapping information, determining second content as content input by the authorized user, based on the second key layout and an input of the authorized user with respect to the input device, and displaying the second content on the display of the wearable device. The second content and first content may be mutually mapped to each other according to the mapping information.