GRIPPER FOR HANDHELD DEVICE

1. Technical field: The present invention relates to a portable electronic device holder which is attached to the back surface of a smartphone or a tablet computer so as to help a user to safely hold the same. 2. Main description: The holder according to one embodiment of the present invention comprises: a base plate having an adhesive pad for being detachably attached to the back surface of the portable electronic device at the bottom; a rotation unit coupled to the base plate to be able to rotate horizontally; a coupling member formed at an outer peripheral portion of the rotation unit and including a protrusion piece equipped with a polygonal penetration unit, and an integrated ring including a partial part which is coupled to the penetration unit and formed into the same polygonal shape with the penetration unit. 3. Technical effect: The present invention can prevent inadvertent falling of electronic devices.