A vibration device includes: a first vibrator having a 3rd-order function temperature characteristic in which a 3rd-order temperature coefficient is −γ1, where γ1>0; and a second vibrator which is connected to the first vibrator, and has a 3rd-order function temperature characteristic in which a 3rd-order temperature coefficient is γ2, where γ2>0, wherein a difference between inflection points of the first and second vibrators is equal to or lower than 19° C., and a relationship of 0