The present invention is for controlling an input dimension in an electronic device, and an operation method of the electronic device includes: an operation for measuring the distance between the electronic device and the ground; and operation for transmitting, to another electronic device, first information about two-dimensional coordinates representing the position of the electronic device, when the distance is shorter than a threshold value; and an operation for transmitting, to the other electronic device, second information about three-dimensional coordinates representing the position of the electronic device, when the distance is not shorter than the threshold value.