FIG. 1 is a front perspective view of a handheld electronic device showing our new design;

FIG. 2 is a front side view thereof;

FIG. 3 is a rear side 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 rear perspective view thereof.

The broken lines shown in the drawings are for the purpose of illustrating unclaimed portions of the handheld electronic device and form no part of the claimed design.