A grip attachment for an electronic device, such as a mobile phone, which enables a user to grasp and control a camera of the mobile phone with one hand. The grip attachment includes a main body and an enlarged grip extension attached to a first end of the main body. The enlarged grip extension is sized and shaped to enable a user's hand to hold the grip extension and attached mobile phone with one hand. The grip attachment also includes a locking mechanism for attaching the attachment grip to a portion of a mobile phone protective case. A second end of the grip extension includes a connector for interfacing with a connector of the mobile phone. The grip extension includes an external control located on an outer surface of the grip attachment for activating a camera control of the mobile phone.