A sensor system includes a touch sensor having a plurality of conductive sensing elements integrated with a flexible substrate. A first subset of sensing elements is coupled to a first side of the flexible substrate and a second subset of sensing elements is coupled to a second side of the flexible substrate. At least one sensing element of the first subset overlies a second sensing element and a third sensing element of the second subset. The sensor system is configured to obtain touch data based at least in part on a respective response to the touch input by the plurality of conductive sensing elements. The sensor system is configured to determine whether the touch input is associated with the first subset of conductive sensing elements or the second subset of conductive sensing elements based at least in part on the respective response to the touch input by the sensing elements.