One gets the Slow Motion as well with the 5S. Better larger sensor always helps so me thinks it a good thing to have. Give it some time, and someone will do a comparison to look at..
This is on Apples Store site:
"We knew we could go one of two ways: Simply add more megapixels for the sake of marketing a bigger number. Or keep the megapixel count at 8 but add a larger, state-of-the-art sensor.
A larger sensor allows the individual pixels to get larger. And larger pixels, not more pixels, mean a better picture. So iPhone 5s has an all-new 8MP sensor. One that’s 15 percent larger than before, with pixels measuring 1.5 microns. We also increased the aperture to ƒ/2.2. All that adds up to 33 percent greater light sensitivity. That’s significant, because more light gives you better, brighter images with even more accurate colors. And the new True Tone flash intelligently figures out exactly how much light your shot needs."