A stylus and an electronic device are provided, wherein the electronic device includes a body and a stylus. The body has a capacitive touch panel. The stylus includes a handle, a head, an elastic member and an electret. The handle has a main body and a chamber disposed within the main body. The main body has a holding portion and a first end. The holding portion is electrically connected with the first end. The head is assembled to the first end so as to be capable of sliding into the chamber, and the head is a rigid body. The elastic member is disposed in the chamber and located between chamber walls of the chamber and the head. The electret is assembled to the head and located within the chamber.