The first and most significant difference is whether or not the diver holds his breath. Freediving is when the diver dives into the water by holding their breath. On the other hand, scuba diving is going underwater with much different equipment. The equipment needed for scuba diving is a mask, regulator, and buoyancy control device (BCD). The mask helps divers see underwater, and the regulator helps them breathe underwater. BCD is a device that helps divers control buoyancy underwater. By injecting or discharging air into the BCD underwater, it can help them descend underwater, stay comfortable at the same depth, or rise to the surface. 

For free diving, it is essential to learn breathing and equalizing, and like scuba diving, a certificate is required, and the items to be tested are static apnea, dynamic apnea, and constant weight. People can enjoy free diving from the surface of the water. They can enjoy the overall sea view with a broad view, but there is a limit to breathing in small parts between coral, and scuba diving is easier to appreciate delicate parts than free diving. 

Both free diving and scuba diving are attractive leisure sports that must be enjoyed while paying attention to thorough training and safety.

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