A wearable electronic device comprising: an enclosure defining an aperture extending through the enclosure into an interior volume; a display at least partially surrounded by the enclosure and configured to receive a touch input; and a processing element disposed in the enclosure and operatively coupled to the display; and a tactile switch assembly at least partially disposed in the aperture and comprising: a button configured to receive translational and rotational input; a coupling member connected to the button and extending into the interior volume through the aperture, the coupling member electrically coupled to the button and configured to rotate with the button; a tactile switch including a collapsible dome positioned within the interior volume and configured to detect the translational input; a contact operably connected to the tactile switch and electrically coupled to the button via the coupling member; a light source; a trackable element; and an optical sensing element positioned within the interior volume and configured to detect the rotational input by receiving light generated by the light source and reflected off the trackable element operably connected to the coupling member and rotatable therewith; wherein the electrical coupling between the contact and button is maintained during translation and rotation of the button; and the coupling member is configured to transmit electrical signals from the button to the processing element via the contact. an enclosure defining an aperture extending through the enclosure into an interior volume; a display at least partially surrounded by the enclosure and configured to receive a touch input; and a processing element disposed in the enclosure and operatively coupled to the display; and a tactile switch assembly at least partially disposed in the aperture and comprising: a button configured to receive translational and rotational input; a coupling member connected to the button and extending into the interior volume through the aperture, the coupling member electrically coupled to the button and configured to rotate with the button; a tactile switch including a collapsible dome positioned within the interior volume and configured to detect the translational input; a contact operably connected to the tactile switch and electrically coupled to the button via the coupling member; a light source; a trackable element; and an optical sensing element positioned within the interior volume and configured to detect the rotational input by receiving light generated by the light source and reflected off the trackable element operably connected to the coupling member and rotatable therewith; wherein the electrical coupling between the contact and button is maintained during translation and rotation of the button; and the coupling member is configured to transmit electrical signals from the button to the processing element via the contact. a button configured to receive translational and rotational input; a coupling member connected to the button and extending into the interior volume through the aperture, the coupling member electrically coupled to the button and configured to rotate with the button; a tactile switch including a collapsible dome positioned within the interior volume and configured to detect the translational input; a contact operably connected to the tactile switch and electrically coupled to the button via the coupling member; a light source; a trackable element; and an optical sensing element positioned within the interior volume and configured to detect the rotational input by receiving light generated by the light source and reflected off the trackable element operably connected to the coupling member and rotatable therewith; wherein the electrical coupling between the contact and button is maintained during translation and rotation of the button; and the coupling member is configured to transmit electrical signals from the button to the processing element via the contact.