Systems, articles, and methods for elastic electrical cables are described. An elastic electrical cable includes a molded band of elastomer with a length that follows a tortuous path including a number of semi-rigidly set changes in direction. The elastomer band is formed by an overmolding process to enclose or at least partially contain a flexible printed circuit board, with various access points provided to electrically couple to/from the flexible printed circuit board. An annular wearable electric device employing at least one such elastic electrical cable as an adaptive coupler that simultaneously provides both electrically conductive coupling and adaptive physical coupling is described. Methods of preparing/manufacturing such elastic electrical cables are also described.
