In one embodiment, a device includes a form factor of a stylus. The form factor includes a surface area. The device also includes one or more substrates disposed along one or more portions of the surface area; and one or more touch sensors disposed on one or more of the substrates. At least one of the touch sensors includes a distinct touch-sensitive area that includes a touch-sensitive button, a touch-sensitive wheel, or a touch-sensitive slider. The device also includes a computer-readable non-transitory storage medium coupled to one or more of the touch sensors and embodying logic configured to associate the distinct touch-sensitive area with a pre-determined function of the device.