The Beneteau 393 and the Beneteau Oceanis 393 are both sailboats manufactured by the French company Beneteau. The Beneteau 393 was introduced in the early 2000s and replaced the Oceanis 381. The Beneteau Oceanis 393, on the other hand, was introduced in 2004.
The Beneteau 393 and the Beneteau Oceanis 393 share some similarities in terms of design and layout. However, there are some differences between them. According to a review by Practical Sailor, the Beneteau 393 benefits from big-company protocols in the production process. The basic design is nothing radical, but the layout and details incorporate a lot of owner feedback. The Beneteau Oceanis 393, on the other hand, has a longer waterline than the Beneteau 393 (35'1" vs. 32'10") and a higher STIX rating.
STIX rating is a measure of a boat's stability index. It is calculated based on factors such as beam, displacement, ballast ratio, and sail area. A higher STIX rating indicates better stability in rough seas.