Hi Raul,
The big difference between a scuba wet suit and a freedive wet suit is the degree to which it stretches. Most scuba suits have relatively dense neoprene, and two layers of fabric on them.
This makes them quite strong, but not very elastic. A good sport freedive suit will be made of very stretchy neoprene, which has more N2 in the material, and typically only one layer of fabric. The performance suits do not have any frabric layers, which makes them very stretchy, but quite fragile. The more stretchy suit will allow more range of motion, and most importantly a
more complete inhalation. There a many freedive suit makers; Omer, Mares, Picasso, and Sporasub to name a few. Many posts on this list, have in the past, indicated that Picasso is the best. I hope this helps a bit.
Best wishes,
Freediver48