Abstract: An electronic device includes a communication circuit, a memory, and a processor operatively connected to the communication circuit and the memory. The processor can be configured to: transmit, through the communication circuit, an advertisement packet having a first attribute; check, on the basis of identification information stored in the memory, whether a scan request packet is received from an external electronic device corresponding to the identification information; and transmit, through the communication circuit, an advertisement packet having a second attribute including loss notification information, if the scan request packet is not received from the external electronic device.