There is provided a biometric apparatus that includes a detector generating a detection signal in response to a state of a living body； a mounting unit mounting the detector to the living body, and including a pressure sensing unit made of pressure-sensitive conductive resin and configured to elastically stretch and contract, and a first electrode and a second electrode formed on the pressure sensing unit； a calculation unit calculating an evaluation index in response to a resistance between the first electrode and the second electrode； and an evaluation unit evaluating a mounting state of the detector in response to the evaluation index.
