Methods and systems may provide for a gyratory sensing system (GSS) for extending the human machine interface (HMI) of an electronic device, particularly small form factor, wearable devices. The gyratory sensing system may include a gyratory sensor and a rotatable element to engage the gyratory sensor. The rotatable element may be sized and configured to be easily manipulated by hand to extend the HMI of the electronic device such that the functions of the HMI may be more accessible. The rotatable element may include one or more rotatable components, such as a body, edge or face of a smart watch, that each may be configured to perform a function upon rotation, such as resetting, selecting, and/or activating a menu item.