A long-range air defense system designed to detect, track, and destroy a wide range of aerial threats.
A combat-proven missile defense system built to intercept tactical ballistic missiles, cruise missiles, and aircraft.
S-400: Up to ~600 km (depending on radar & missile type) Patriot: Around ~150–180 km
S-400: Up to ~400 km Patriot: Up to ~70–160 km (variant-based)
S-400: Aircraft, drones, ballistic & cruise missiles Patriot: Aircraft, cruise missiles, tactical ballistic missiles
Both systems are mobile, but Patriot is faster to deploy in battlefield conditions.
Patriot: Widely used in multiple conflicts with real combat interception record S-400: Deployed in several countries, limited real combat data
S-400 dominates in range and multi-layer defense Patriot excels in battlefield-tested reliability and rapid response