The ornamental design for an electronicdevice, as shown and described.
FIG. 1 is a front perspective view of an electronic device showing our new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a perspective view thereof, showing the design on a holder.
The holder and the remaining features shown in broken lines in the figures are for illustrating environmental structure only and form no part of the claimed design.