What are the differences between PEX crimp and cinch fittings for plumbing applications?

PEX crimp fittings require a special tool to compress a metal ring around the PEX tubing, creating a secure connection. Cinch fittings use a stainless steel ring and a cinch tool to secure the tubing in place. Crimp fittings are more commonly used and provide a stronger connection, while cinch fittings are easier to install but may not be as reliable in the long term.