They are actually the same vessel with one difference. The 330 has two air chambers in case if you hit an object and the 370 doesn't have this option, although it is a bit lighter. Some people say that these kayaks are great for fishing while others say they are better for recreational paddling and water sports like surfing or day trips. Sea Eagle kayaks aren't suitable for rougher waters because even though they are durable, compared to inflatable boats from other brands, their material is still way too fragile.