What are the differences between a supercardioid and cardioid microphone polar pattern?

The main difference between a supercardioid and cardioid microphone polar pattern is the directionality of sound they pick up. A supercardioid microphone is more focused and picks up sound from the front while rejecting more sound from the sides and rear compared to a cardioid microphone, which picks up sound mainly from the front but also captures some sound from the sides.