A smart ring includes a body including flexible material, a first part, a second part removably connected to the first part, and at least one pair of break-away portions disposed within the body separate from the first part and the second part. One or more of a battery, a charging unit, a processor unit, a user input unit, a communication unit, a memory unit, at least one sensor unit, an output unit or a user input unit is disposed in or on one of the first part and the second part. Each of the break-away portions of the pair of break-away portions is removable from the other break-away portion upon movement of one break-away portion in a direction away from the other break-away portion.