Since summer, we’ve known what superficial changes the iPhone 4S would include: A5 processor, improved battery, better camera, etc. However, with Apple’s new smartphone being released to the public Friday, iDevice experts are finally able to teardown the phone and check out all of its components.

“With the iFixit teardown of the iPhone 4S under way today, system memory and a slightly improved battery stand out so far,” writes Brooke Crothers for CNET. “The Apple A5 chip has 512MB of memory, according to iFixit’s teardown… Apple has managed to boost the WHrs (watt-hours) slightly–by five one-hundredths of a WHr to be exact.”

Some industry insiders initially believed that the iPhone 4S would sport a full gigabyte of memory, but it was revealed a couple of weeks ago that it would likely be half that. The 4S does indeed only have 512 MB, the same amount that its predecessor, the iPhone 4, can manage.

As for the phone’s lightning-quick A5 processor, “The A5 appears to made by Samsung and pretty much the same SoC that’s in the iPad 2,” explains Crothers. The processor doesn’t make the 4S quite as fast as Apple’s iPAs 2 computer tablet, but it does improve significantly on the iPhone 4’s processor.