Devices for testing distal colonic and anorectal function. In at least one embodiment of a device of the present disclosure, the device comprises a flexible central support, a first bag or balloon surrounding at least part of the flexible central support and a first plurality of sensors positioned upon or embedded within a surface of the first bag or balloon, each of the first plurality of sensors positioned a known distance from each other wherein the first plurality of sensors are configured to obtain pressure measurements on the surface of the first bag or balloon when the device is operated within a mammalian gastrointestinal tract.