Do iPhone X cases fit on the iPhone XS?

Does anyone know whether the iPhone X and the iPhone XS have the exact same measurements as far as cases are concerned? I know that the measurements shown on the [Apple iPhone compare webpage](https://www.apple.com/iphone/compare/) are the same, but what about the measurements of the camera? Apple does not show this on their website. Let's suppose, that the X and the XS have the exact same measurements, then every iPhone X case should fit on the XS, correct? But even if there is the slightest difference between them, there could be some iPhone X cases that can't fit iPhone XS.