PROBLEM TO BE SOLVED: To provide an electronic device and an estimation system capable of easily estimating the health condition of a subject. An electronic device (100) acquires a sensor unit (130) that acquires a pulse wave of a subject, a blood sugar level and an estimation formula created based on the pulse wave associated with the blood sugar level, and the sensor unit (130). And a control unit 143 for estimating the blood glucose level of the subject based on the pulse wave of the subject, and the control unit 143 represents the ratio of the magnitudes of the forward wave and the reflected wave of the pulse wave. An estimation formula is created based on the index AI. [Selection diagram] Fig. 10
