Otterbox S21 Symmetry. Samsung s21 fe · provides complete access to all ports and buttons · raised edges & cornersbj1 : This is the clear version of the . Symmetry series is the slim and protective case that shows off your style. They also make this for the s21 plus and s21 ultra. Yes · shock absorbing & . From cute and fun to daring and dazzling, symmetry series is the expressive case that's slimmer than ever, as protective as always. Symmetry series is the slim and protective case that shows off your style.