The ornamental design for a wristband for electronicdevice, as shown and described.
FIG. 1 is a front perspective view of a wristband for electronic device showing our new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a left side elevation view thereof;
FIG. 5 is a right side elevation view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is an enlarged front perspective view of the area encircled in FIG. 1.
The dashed broken lines in the figures represent unclaimed portions of the wristband and form no part of the claimed design.
The dot-dot-dash broken lines in FIGS. 1 and 8 encircle a portion of the claimed design that is illustrated in enlargements and form no part of the claimed design.