@Adinnieken thks for the link with cm.

It is 10.8" vs 13.5"... and 2" vs 3.2"

The picture is accurate... it is not 0.7" difference... it is 2.7" difference.

Yeah, Sony has its actually dimensions on their site and its almost the same size as the current PS3 super slim.

I'm going to steal this pic for another thread OP as it gives credence to another Xbone topic on heat dissipation and other issues...

Thats rather impressive, almost same size as my ps3 slim. I expected it to be alot bigger.

That Xbox One is MASSIVE. Holy crap it even looks bigger than the original PS3....

Pretty amazing feat. Those Sony hardware engineers are really fucking talented.
I don't know if anyone answered this yet but the PS4 has the power supply inside the unit while the Xbox1 has an external power brick yet its still smaller!

Yeah...I figured the I wad doing LxHxD and assuming the longer measurement was the Length, not Depth.

So, to put the PS4 into perspective, it's the same size (LxD) as the original Xbox 360, but more than an inch thinner.

Interesting that Sony chose to use the smaller dimension for the most visible portion.  It gives the PS4 a much smaller profile than even that of the PS3 Slim.

I made this image showing the difference between 10.8" and 13.5".

Another good image.

any one know if ps4 or xb1 have internal power supply ?

PS4 has an internal power supply. You can tell by looking at the rear I/O. For a system that has 50% more GPU than the Xbone btw, the PS4 looks remarkably small. I would expect it to be at least equal in size, if not larger than its competitor.