ASUS Zenfone ZS620KL 5Z is a top phone built irreproachable, reliable and powerful. Zenfone 5Z offers everything a user might want, but it does at a much lower price. From our point of view, the Zenfone 5Z is the best choice in its category. As a result, we are not wrong when we award the prize of the best choice for a user who appreciates performance.