364GB of usable space on Xbox Series S
The Xbox Series S will only have 364GB of usable storage according to a Reddit user who received a console early.
Of the 512GB on the Xbox Series S SSD, about 148GB is reserved for the operating system, leaving 364GB for the user. That might not sound like a lot, but it is possible that Xbox Series S versions of games take less space as there's no need for 4K textures since the machine's native resolution is 1440p.
Load times: Videos that show The Witcher 3: Wild Hunt running on Xbox Series X have appeared, and the results are pretty impressive: Loading times are reduced to a matter of seconds and that's without any next-gen optimizations.