Personal hygiene device

A personal hygiene device comprising

• a handle intended for being grasped by a user;
• a treatment head intended for being pressed against a body portion of a user;
• wherein the treatment head is pivotably connected with the handle so that applying a treatment force against the treatment head at least along a treatment direction leads to a pivoting of the treatment head relative to the handle around a pivot axis;
• a Hall sensor for measuring a measurement variable fixedly secured with respect to one of the handle and the treatment head;
• a sensor cooperation unit for defining or influencing the measurement variable in dependence on the relative position of the sensor and the sensor cooperation unit, comprising a sensor permanent magnet, fixedly secured with respect to the other one of the handle and the treatment head;
• and
• a spring unit for defining a rest position of the treatment head when no treatment force is applied at the treatment head, where the spring unit has a first spring constant in the treatment direction and a second spring constant in a lateral direction that is perpendicular to the treatment direction, which second spring constant is at least about two times higher than the first spring constant, wherein the first spring constant is in the range of between 2 N/mm to 6 N/mm and the second spring constant is in a range of between 6 N/mm to 24 N/mm.