in one of the them you are wet and in the other one you are dry
honest... it's that simple. a wetsuit is (usually) made of neoprene and allows a limited amount of water into the suit. that is why you want a good fitting wetsuit, because you do NOT want a lot of water moving in and out of the suit, just a little. this small amount of water (debateably) warms up and helps the insulation properties of the wetsuit
a drysuit is just that. you are COMPLETELY dry for the duration of your dive. it is therefor also much more complex in construction to complete this herculean task of keeping all water out of the suit from neck seals, to arm seals and such.
ps: it is easy to weeWee in wetsuit, you need to have all kinds of special apparatus to weeWee in a drysuit.
Chat with our AI personalities
It's important to understand that there is a difference between wetsuits made for swimming, like triathlon wetsuits, and those made for other purposes, like Scuba diving and Surfing. Triathlon wetsuits allow the shoulders to move freely, facilitating the swim stroke, and are thinner than other types to stay within rules for the amount of buoyancy they provide.
A wetsuit allows a thin layer of water to be between your body and the neoprene suit. Your body heat warms this water and helps keep your body warm. A properly fitting wetsuit will be skin tight to prevent water from leaking out of the suit.
A wetsuit for scuba diving is 10x thicker than any other wetsuits in order to conserve heat deep underwater. Surfing and kite surfing suits are generally thinner and more flexible than scuba diving wetsuits.