Wearable device for monitoring body water, electronic device, and operation method therefor

An electronic device comprising:

• a communication circuit configured to transmit data or a signal to an external device or receive data or a signal from the external device;
• an output device;
• at least one processor;
• and
• memory storing instructions,
• wherein the instructions, when executed by the at least one processor individually or collectively, cause the electronic device to:
• obtain first data related to a first biosignal corresponding to an electrical characteristic, second data related to a second biosignal corresponding to an optical characteristic, and third data corresponding to a temperature;
• correct the first data and the second data based on the third data;
• determine data related to a body water change of a body based on changes in the corrected first data and the corrected second data;
• and
• transmit, through the communication circuit, the data related to the body water change, to the external device, or output feedback to the output device based on the data related to the body water change.

A method of operating an electronic device, the method comprising:

• obtaining first data related to a first biosignal corresponding to an electrical characteristic, second data related to a second biosignal corresponding to an optical characteristic, and third data related to a temperature;
• correcting the first data and the second data based on the third data;
• determining data related to a body water change of a body based on changes in the corrected first data and the corrected second data;
• and
• transmitting, through a communication circuit, the data related to the body water change to an external device, or outputting feedback to an output device based on the data related to the body water change.