While the Xbox One S will finally launch on August 2, there is a bit of a catch- the model going on sale will specifically be the 2TB, $399 Xbox One S model. The cheaper Xbox One S models, that come with either 500GB or 1TB of on board storage, will not be going for sale until much later.
The Xbox One S will be 40% smaller than the existing Xbox One console, come with an integrated power supply, better positioning of buttons and ports on the system, an improved controller, and support for 4K, UHD, and HDR video playback.
Source: Rheena.com

