A push button system for an electronic device, e.g. smart device, comprises a piezoelectric element; a first sensor configured for measuring a first force or strain on one side of the piezoelectric element; and a second sensor for measuring a second force or strain on an opposite side of the piezoelectric element. A button configured to pivot and reciprocate in an outer frame of the electronic device, includes one or more contact points, such as a first pedestal for contacting the piezoelectric element on one side, and/or a second pedestal for contacting the piezoelectric element on an opposite side. By utilizing, e.g. comparing, a first electrical signal generated by the first force or strain and a second electrical signal generated by the second force or strain, a location of the force application by a user on the button can be determined and a corresponding response can be activated.

A ring input device, and more particularly to variable rotational resistance mechanisms within the ring input device that modulate the rotational friction of a rotating outer band to improve the user experience, is disclosed. Because finger rings are often small and routinely worn, electronic finger rings can be employed as unobtrusive communication devices that are readily available to communicate wirelessly with other devices capable of receiving those communications. Ring input devices according to examples of the disclosure can modulate the rotational friction of its rotating outer band in accordance with an item (e.g., user interface or parameter) being manipulated by the band.

A ring input device, and more particularly to touch-sensitive input mechanisms within the ring input device that detect touch to initiate an operation, is disclosed. Because finger rings are often small and routinely worn, electronic finger rings can be employed as unobtrusive communication devices that are readily available to communicate wirelessly with other devices capable of receiving those communications. Ring input devices according to examples of the disclosure can detect touch inputs on its band to generate inputs that can then be wirelessly communicated to companion devices.