Okay so I got a reply from a Sony Support person on their forums and he stated that the Xperia S does not have fast charge.
I find this to be a load of crap because:
They stated it originally on their facebook page here
4th post down
Also if you look under the 851 specs it says Fast Charging and then lists the compatible phones which include the Xperia S and P. Then it lists normal charging as any other micro usb phone.
Also it was WIDELY reported to have quick charge and their is no way Sony PR did not catch the reports about it. If you look it up, there is many more posts and articles about the S featuring it than there is with the Xperia P featuring it considering that is what the support person said it is in.
Next you can not find quick charge listed on any of their white papers for either product which would lead me to believe they didn't list it incase they wanted to remove the feature later.
Lastly people have done charging tests and it clearly charges at the claimed speeds of the quick charging. Also the battery is of the same voltage and type as the Xperia P battery.
I find it quite irritating that Sony support is telling people that the phone doesn't have the feature when 99.9 percent of the public buying the phone thinks it does. If everyone perceives something to be true into becomes reality regardless of the facts.
I still love Sony and my phone, but this kind of trash should be limited to Apple.