An electronic device comprising: a sensor module ; a display ; a processor operatively connected to the sensor module and the display ; and a memory storing instructions which, when executed by said processor, configure the processor to: obtain first data related to a first position of a user measuring blood pressure (BP) through the electronic device, identify a second position of the user measuring the BP, based on second data acquired through the sensor module , wherein each of the first data and the second data includes an inclination of the electronic device, identify whether a difference between the first data and the second data, including a difference in the inclination of the electronic device and a difference in at least one of a height of the electronic device or a distance between the electronic device and the user, is included in a preset range, and when the difference is not included in the range, display a user interface, including guide information for adjusting the second position to become equal to the first position, through the display, wherein the guide information includes a first graph object indicating a reference position and corresponding to the first position, and a second graph object indicating a current position and corresponding to the second position. a sensor module ; a display ; a processor operatively connected to the sensor module and the display ; and a memory storing instructions which, when executed by said processor, configure the processor to: obtain first data related to a first position of a user measuring blood pressure (BP) through the electronic device, identify a second position of the user measuring the BP, based on second data acquired through the sensor module , wherein each of the first data and the second data includes an inclination of the electronic device, identify whether a difference between the first data and the second data, including a difference in the inclination of the electronic device and a difference in at least one of a height of obtain first data related to a first position of a user measuring blood pressure (BP) through the electronic device, identify a second position of the user measuring the BP, based on second data acquired through the sensor module , wherein each of the first data and the second data includes an inclination of the electronic device, identify whether a difference between the first data and the second data, including a difference in the inclination of the electronic device and a difference in at least one of a height of the electronic device or a distance between the electronic device and the user, is included in a preset range, and when the difference is not included in the range, display a user interface, including guide information for adjusting the second position to become equal to the first position, through the display, wherein the guide information includes a first graph object indicating a reference position and corresponding to the first position, and a second graph object indicating a current position and corresponding to the second position. when the difference is not included in the range, display a user interface, including guide information for adjusting the second position to become equal to the first position, through the display, wherein the guide information includes a first graph object indicating a reference position and corresponding to the first position, and a second graph object indicating a current position and corresponding to the second position. <EOS>