It also provides a shallow depth of field, allowing you to blur the background to focus attention on the subject. Has a dual-tone LED flash. Apple iPhone 4S. Apple iPhone 5. A dual-tone flash has LED lights with different color temperatures, delivering a better color balance to photos and videos. Technical Differences. Internally, the iPhone 4S is considerably more powerful than the iPhone 4 or the iPod touch 4th Gen. First, the iPod touch 4th Gen has 256 MB of RAM whereas the iPhone 4 and iPhone 4S both have 512 MB of RAM. The iPod touch 4th Gen and iPhone 4 both have a single core Apple A4 processor, but the iPhone 4S, on the other eGVG.

iphone 4 vs 4s