Here's a Side-By-Side Comparison of a Picture Taken with the iPhone 5 and the iPhone 4S [Iphone 5]

Source: http://gizmodo.com/5942810/heres-a-side+by+side-comparison-of-a-picture-taken-with-the-iphone-5-and-the-iphone-4s

Though we won't get an official side-by-side comparisons of the camera in the iPhone 4S and the new iPhone 5 until we get our hands on it, this is about as close as it gets: Scott Everett, from Dpreview, took nearly the same picture of Big Sur that Apple has been using in its iPhone 5 sample gallery with his own iPhone 4S. It's the first head to head look of the camera in the iPhone 5 and iPhone 4S.

It's a remarkable coincidence that's astutely analyzed by Dpreview and they've discovered that the iPhone 5 (though listed as having a similar spec'd camera) actually has a different sensor than the 4S. Dpreview compared the EXIF data and saw that the iPhone 5 was able to drop to ISO 50, which means "for images taken in such bright light, this strongly suggests the newer model has a lower minimum sensitivity." Also, Dpreview suggests that the iPhone 5 has a slightly larger sensor than the iPhone 4S when digging deeper into the EXIF data.

From our perspective, there seems to be a little more detail in the iPhone 5 but that could be a lot of different factors in play (time of day, etc.). I definitely prefer the look of the iPhone 5 camera more but on first glance, it doesn't seem as significant a jump as the the iPhone 4 camera to the 4S camera was (and definitely not 3GS to 4). Of course, this isn't a real hands-on comparison and it's not taken at night where we can see if the iPhone 5 has improved low light performance, but it does give you the idea of what the 4S and 5 are capable of. Check out the real photos of the two iPhones at Dpreview.

Also, be sure to read Dpreview's take on this comparison picture and check out their whole take on the iPhone 5 camera too. [Dpreview]

Update: Gizmodo reader Darshan Meda just sent me the picture he took of Big Sur with an iPhone 4 and I've added it in for reference. Again, there will be obvious differences (given the different times each picture was taken) but you get the general gist