I read that the specifications are not that much different. Xbox One S does have an Ultra HD Blu-ray, which means special improvement in graphic and overall enjoyment of the games. For that alone, it's probably worth the money.
They had some pretty good deals on Xbox One and PS4's yesterday. We were thinking about getting an Xbox One because my husband wants to play the new Forza but we found out that he might be able to just get it for the computer and still be able to play it online with his cousin.