The Armored Titan stands at 15 meters and is covered in thick, hardened armor plates across its entire body, making it nearly indestructible in direct combat. It served as Marley's ultimate battering ram, used to breach fortified positions and shatter enemy defensive lines. Reiner Braun has been the sole inheritor of this Titan throughout the story's timeline. The Armored Titan's defense is so formidable that even the Anti-Titan artillery cannons struggle to penetrate its armor.
The Armored Titan appears as a heavily armored humanoid with thick, jagged plates of hardened skin covering its head, torso, arms, and legs. Its face is partially covered by armor plates that form a beak-like structure over the mouth, with glowing yellow eyes visible through gaps in the protection. The armor has a rough, rocky texture with a brownish-tan color, giving it the appearance of an ancient warrior encased in stone. Its body underneath is muscular and proportionate, though the armor adds significant bulk and weight to its overall frame.
The Armored Titan possesses the strongest defensive capabilities of all Nine Titans, with armor plates that can withstand sustained cannon fire and Titan claws. It can shed portions of its armor to dramatically increase speed and mobility, sacrificing defense for offensive capability when needed. The user can selectively regenerate armor plates after they have been broken or shed, restoring full protection over time. Its charging attacks are devastatingly powerful, capable of smashing through the Wall Maria gate and leveling buildings with each impact. The Armored Titan can also harden its fists and feet for enhanced striking power during close-quarters combat.
Reiner Braun is the only known holder of the Armored Titan, having inherited it as a child warrior from Marley to infiltrate Paradis. He used its power to breach the inner gate of Wall Maria, allowing the Pure Titans to flood into human territory. Throughout the series Reiner struggled with the guilt of his actions, eventually fighting alongside the Paradis alliance against Eren in the final battle.