Provided are an electronic device and an operation method of the same. The electronic device includes: a display panel including pixels that emit light; a light sensor disposed on the display panel and sensing external light; a pressure sensor sensing pressure applied from the outside; and a processor applied with a pressure signal sensed by the pressure sensor and a first pulse wave signal sensed by the light sensor, wherein the processor is configured to: analyze the first pulse wave signal in a blood pressure measurement mode and display a first indicator on the display panel when a first abnormal section is calculated in the first pulse wave signal, display a second indicator different from the first indicator on the display panel when the first abnormal section is not calculated, and calculate blood pressure information based on the first pulse wave signal and the pressure signal.