FIG. 1 is a front and top perspective view of a screen magnifier for smartphone, showing my new design;
FIG. 2 is a rear and top perspective view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a right side elevational view thereof;
FIG. 7 is a top plan view thereof;
FIG. 8 is a bottom plan view thereof;
FIG. 9 is a perspective view of the screen magnifier for smartphone shown in a condition of use;
FIG. 10 is a perspective view of a screen magnifier for smartphone shown in an environment of use; and,
FIG. 11 is an enlarged view of a portion indicated in FIG. 2.
The broken lines in the figures depict portions of the screen magnifier for smartphone and environmental structure that form no part of the claimed design.