Last year, I wrote The Amazing iPhone Camera Comparison using an iPhone 4, 3GS and 3G. This year, I am doing the same thing with the iPhone 4S and 4. Being able to compare the quality from the two cameras has given me a huge respect for the iPhone 4S – the quality difference is amazing and makes the iPhone 4 feel like a toy.
For the tech specs below, I included my numbers from last year’s post and added the ones for the 4S. Most of the numbers came from directly observing the EXIF data off of the photos, which included shots of the sun (for max shutter speed, etc) and a dark closet (for highest ISO, etc).