Minecraft wiki entry for Armor, associated text: Armor points count for less as the attack strength increases: each 2 done by the attack reduces the effective defense points by 1 (), but not below 20% of the armor points. In short, the stronger the attack force, the less the armor points protect in since some changes coming from the Combat Update (1.9 version for the Java Edition and, for Bedrock players, Bedrock Edition 1.18.30). In older versions of Bedrock and in Java Edition 1.8, each armor point always protects 4%.