1. A heart rate estimating apparatus comprising: a transmitter configured to transmit microwave with respect to a subject; a receiver configured to receive and detect reflected wave from the subject irradiated with the microwave, and acquire a detected result; a sensor configured to sense a movement of the subject, and acquire a sensed result; and an estimating unit configured to estimate a heart rate based on feature points remaining after excluding, from heart rate candidates, feature points that are obtained by frequency analysis of the detected result and are located in a vicinity of frequencies at which feature points are obtained by frequency analysis of the sensed result.