Advantage of using a vector database over a standalone vector index

What is the advantage of using a vector database over a standalone vector index such as FAISS? $($More than one option can be correct.$)$

Vector databases require less storage space than vector indexes.

$$Vector databases are easier to integrate with a storage solution than vector indexes.

$$ Vector databases offer real$-$time updates.

$$ Vector databases have built$-$in security measures.