A standard Level 3 armor in Apex Legends requires 100 damage to break its shields.
Level 3 armor is the purple-tier body armor, traditionally called an Epic Body Shield. Its 100 shield points sit on top of a Legend’s 100 base health, so a fully healthy player with intact Level 3 armor represents 200 points of total effective durability before damage modifiers are considered.
The number is easy to confuse with armor-evolution requirements. Older Evo Shield progression used separate damage thresholds, including 300 damage for one later upgrade, but that is damage dealt to level up armor rather than damage needed to deplete it. Gold Level 4 armor also provides 100 shields, although its special healing perk distinguishes it from standard purple armor. Current systems use Shield Cores, but Level 3 still represents 100 armor health.