ELECTRONIC DEVICE FOR SWITCHING CELLULAR CONNECTION OR OPERATION MODE OF CELLULAR CONNECTION ON BASIS OF STATE OF ELECTRONIC DEVICE, AND METHOD FOR OPERATING ELECTRONIC DEVICE

In an electronic device and a method for operating the electronic device according to various embodiments, the electronic device comprises: a temperature sensor that measures the temperature of at least a portion of the electronic device; a display; a communication circuit that supports a first cellular connection and/or a second cellular connection; an application processor; and a communication processor. The application processor may be configured to: check whether a deactivated state of the display is maintained for at least a specified time while connected through the first cellular connection; check, in response to the deactivated state being maintained for at least the specified time, whether the temperature measured by the temperature sensor and the throughput of data transmission through the first cellular connection satisfy a specified condition; and control the communication processor to perform at least one operation for disconnecting the first cellular connection in response to the temperature and the throughput satisfying the specified condition. Various other embodiments are possible.