Display screen of a wearable device with a transitional graphical user interface

FIG. 1 is a front view showing a first image of a display screen of a wearable device with a transitional graphical user interface showing our new design;

FIG. 2 is a front view showing a second image thereof;

FIG. 3 is a front view showing a third image thereof; and,

FIG. 4 is a front view showing a fourth image thereof.

The subject matter in this application includes a process or period in which an image changes into another image. This process or period forms no part of the claimed design.

The broken lines shown in the drawings depict portions of the display screen of a wearable device with graphical user interface that form no part of the claimed design.