Is there any difference between ordinary concrete and cement self-leveling?

Is there any difference between ordinary cement and self-leveling cement? Have very big distinction, self-leveling cement floor are much more expensive than the ordinary cement mortar, self-leveling materials such as binder was added in cement, is it more smooth, and face brick, belong to interior decoration, such as the floor and ordinary cement floor is needless to say, the most basic form. Self-leveling cement building or bungalow can spread, and to lay a foundation to ordinary cement mortar, 200 mm, toilet, kitchen. Great attention is the water in the mortar wants moderate, not too much, when completed, will level off, as flat as possible, it depends on the technical level of workers, not the same.