An electronic device with pressing input function includes a substantially rectangular parallelepiped-shaped housing. A pressure sensor, a display panel, a protective member, and an arithmetic circuit module are disposed in the housing. In the display panel, a front polarizing plate is disposed on a front face of a liquid crystal panel. The pressure sensor includes piezoelectric films having birefringence, and electrodes formed on opposed faces of one of the piezoelectric films. The pressure sensor is disposed between the liquid crystal panel and the front polarizing plate. The piezoelectric films are arranged such that their uniaxial drawing directions are orthogonal to each other.