Electronic Tic-Tac-Toe 2-in-1 Handheld Game

Tic-tac-toe with lights instead of paper, which solves the two things wrong with the paper version: nothing to lose and nothing to run out of. Press a square and it claims it; the grid keeps score.

Two can play head to head or one can play against the machine, and it is small enough for a coat pocket. It is screen-free, which is most of the appeal for handing to a child in a waiting room or a car — quick rounds, no charging, nothing to swipe.