Medicine Balls & Slam Balls

Both are weighted balls, but they're built differently for different jobs:

• Medicine ball — a firm, often slightly bouncy ball used for throws, passes, chest/overhead tosses, and rotational slams against a wall (medicine-ball-rotational-throw, medicine-ball-overhead-throw). Because you release the ball, you can accelerate maximally through the whole range without having to decelerate a weight at the end — making med-ball throws a premier, joint-friendly way to train ballistic-training.
• Slam ball — a heavy, dead/no-bounce rubber ball filled with sand or gel, designed to be slammed forcefully into the ground without bouncing back at your face. Used for overhead slams, conditioning, and full-body power-endurance.
• Wall ball — a softer, larger med ball for the squat-to-overhead-throw "wall ball" exercise (power-endurance conditioning).

Pros: train explosive power and rotation safely (load is released, not decelerated); scalable weight; great for athletes, conditioning circuits, and core/rotational work; cheap and durable. Cons: need space and a sturdy wall/floor (slams are loud and can crack tile); a single ball covers a limited load range.

• Med ball: firm/bouncy → throws, passes, rotational and overhead tosses.
• Slam ball: dead/no-bounce, sand-filled → ground slams without rebound.
• Wall ball: soft/large → squat-to-throw conditioning.
• Releasing the load lets you accelerate fully = safe ballistic power training.
• Need space and a solid surface; slams are loud.

• medicine-ball-rotational-throw — rotational throws/slams.
• ballistic-training — released-load explosive training.
• medicine-ball-overhead-throw — specific drill.
• plyo-box / sandbag — other power/odd-object tools.