An electronic device comprising: a battery ; at least two front electrodes located in a front side of the electronic device, including a first electrode and a second electrode , wherein the front electrodes are suitable to be used for charging and are suitable to be used to acquire biometric information; at least two rear electrodes located in a rear side of the electronic device, including a third electrode and a fourth electrode ; a charging circuit for charging the battery ; a sensor controller configured to measure biometric information through the electrodes, wherein the sensor controller is connected to the rear electrodes (541, 731; 543, 733); at least one switch for selectively connecting the front electrodes (531, 721; 533, 723) to the charging circuit or to the sensor controller ; and a processor configured to: determine whether a charging module is mounted to the front electrodes (531, 721; 533, 723); if a charging module is not mounted to the front electrodes, connect the front electrodes (531, 721; 533, 723) to the sensor controller by using the at least one switch and acquire biometric information by using a first method; and if a charging module is mounted to the front electrodes, connect the front electrodes (531, 721; 533, 723) to the charging circuit by using the at least one switch and acquire the biometric information by using a second method. a battery ; at least two front electrodes located in a front side of the electronic device, including a first electrode and a second electrode , wherein the front electrodes are suitable to be used for charging and are suitable to be used to acquire biometric information; at least two rear electrodes located in a rear side of the electronic device, including a third electrode and a fourth electrode ; a charging circuit for charging the battery ; a sensor controller configured to measure biometric information through the electrodes, wherein the sensor controller is connected to the rear electrodes (541, 731; 543, 733); at least one switch for selectively connecting the front electrodes (531, 721; 533, 723) to the charging circuit or to the sensor controller ; and a processor configured to: determine whether a charging module is mounted to the front electrodes (531, 721; 533, 723); if a charging module is not mounted to the front electrodes, connect the front electrodes (531, 721; 533, 723) to the sensor controller by using the at least one switch and acquire biometric information by using a first method; and if a charging module is mounted to the front electrodes, connect the front electrodes (531, 721; 533, 723) to the charging circuit by using the at least one switch and acquire the biometric information by using a second method. determine whether a charging module is mounted to the front electrodes (531, 721; 533, 723); if a charging module is not mounted to the front electrodes, connect the front electrodes (531, 721; 533, 723) to the sensor controller by using the at least one switch and acquire biometric information by using a first method; and if a charging module is mounted to the front electrodes, connect the front electrodes (531, 721; 533, 723) to the charging circuit by using the at least one switch and acquire the biometric information by using a second method. <EOS>