The PlayStation 4 has a 500GB hard drive--the same size as the Xbox One--Sony confirmed as part of a recently released fact sheet regarding the next-generation platform.
In addition, PlayStation Eye cameras will not be included with PS4 systems. Instead, they will be available as peripherals for $60 each.
Additional DualShock 4 controllers will sell for $60.
By comparison, the Kinect 2.0 is included with every Xbox One and has been described as an integral component of Microsoft's next-generation machine.