Electrostatic capacity sensor

An electrostatic capacity sensor comprising:

• a pair of first electrodes facing each other;
• a pair of second electrodes facing each other;
• a first base material having dielectric properties and elasticity and disposed between the pair of first electrodes in a state of being in contact with the pair of first electrodes;
• a second base material having dielectric properties and elasticity and disposed between the pair of second electrodes in a state of being in contact with the pair of second electrodes;
• and
• a common electrode substrate having dielectric properties and elasticity and provided with one of the pair of first electrodes and one of the pair of second electrodes, wherein
• the first base material and the second base material are configured to have different elastic deformation amounts when same force is applied.