A wearable device comprising: a display; at least one first sensor configured to obtain current physical activity information related to a physical activity of a user; at least one second sensor different from the at least one first sensor, the at least one second sensor being configured to detect a user input; and a processor configured to: display a plurality of items corresponding to a plurality of applications (341-1, 341-2,... 341-N) on the display; receive the user input for executing a health care application among the plurality of applications; in response to receiving the user input, execute the health care application; display, on a second area (370; 470) of the display, first information corresponding to physical activity level target information that is set in the health care application; display, on a first area (340; 440) of the display, second information indicating the current physical activity information obtained from the at least one first sensor; wherein the first area (340; 440) is adjacent to the second area (370, 470) and is arranged to surround the second area (370, 470); characterized in that if no user input is detected for a specified time, the processor is further configured to: transition the wearable device to a sleep mode; execute a time application and display time information on the second area (370, 470) of the display instead of said first information; and maintain displaying the second information displayed on the first area (340;440) of the display. a display; at least one first sensor configured to obtain current physical activity information related to a physical activity of a user; at least one second sensor different from the at least one first sensor, the at least one second sensor being configured to detect a user input; and a processor configured to: display a plurality of items corresponding to a plurality of applications (341-1, 341-2,... 341-N) on the display; receive the user input for executing a health care application among the plurality of applications; in response to receiving the user input, execute the health care application; display, on a second area (370; 470) of the display, first information corresponding to physical activity level target information that is set in the health care application; display, on a first area (340; 440) of the display, second information indicating the current physical activity information obtained from the at least one first sensor; wherein the first area (340; 440) is adjacent to the second area (370, 470) and is arranged to surround the second area (370, 470); characterized in that if no user input is detected for a specified time, the processor is further configured to: transition the wearable device to a sleep mode; execute a time application and display time information on the second area (370, 470) of the display instead of said first information; and maintain displaying the second information displayed on the first area (340;440) of the display. display a plurality of items corresponding to a plurality of applications (341-1, 341-2,... 341-N) on the display; receive the user input for executing a health care application among the plurality of applications; in response to receiving the user input, execute the health care application; display, on a second area (370; 470) of the display, first information corresponding to physical activity level target information that is set in the health care application; display, on a first area (340; 440) of the display, second information indicating the current physical activity information obtained from the at least one first sensor; wherein the first area (340; 440) is adjacent to the second area (370, 470) and is arranged to surround the second area (370, 470); characterized in that if no user input is detected for a specified time, the processor is further configured to: transition the wearable device to a sleep mode; execute a time application and display time information on the second area (370, 470) of the display instead of said first information; and maintain displaying the second information displayed on the first area (340;440) of the display. transition the wearable device to a sleep mode; execute a time application and display time information on the second area (370, 470) of the display instead of said first information; and maintain displaying the second information displayed on the first area (340;440) of the display.