What do they mean "vs"? They are at a distance and no one is paying attention to their performative interpretive fascist dance troupe.
https://en.wikipedia.org/wiki/Tefillin
The purpose of the head Tefillin is to serve as a physical reminder of God’s commandments and to facilitate spiritual connection during morning prayer services. Observant men and boys who have had their Bar Mitzvah typically wear Tefillin during these services.
It’s worth noting that the Tefillin are not simply “blocks” but rather intricately designed leather boxes containing sacred texts, worn as a symbol of devotion and faith.
The arm-tefillah (or shel yad [literally "of the hand"]) is placed on the upper (non-dominant) arm, and the strap wrapped around the forelimb, hand and middle finger; while the head-tefillah (or shel rosh [literally "of the head"]) is placed between the eyes at the boundary of the forehead and hair. They are intended to fulfill the Torah's instructions to maintain a continuous "sign" and "remembrance" of the Exodus from Egypt. While it is technically permitted for one to wear tefillin all day,[3] this is not common: it is customary to remove them following services
