iPhone 5S, which is put on the market is expected to fall, you should have a video camera of 120 fps (frames per second). However, this upgrade, codenamed Mogul, will not necessarily provide HD quality.
120 Frames per second means that captures as many frames or frames per second, so if the video is slow and there is still the possibility of a normal display, thereby providing a slow motion effect. It is not expected that the iPhone 5S is largely different from the predecessor, but if you look at trends upgrades we can expect a better camera and faster processor, the case will most likely remain the same.
"S" versions are known for their better camera (iPhone 3S, 4S and 5S now). It is speculated that had iOS 7 and camera of 13 MP's, even dual LED flash, but it has not yet been confirmed. Slow motion feature is nothing new smartphones on the market, but it certainly is a welcome improvement. Apple certainly hope that it will be noted by the users.
It should be noted that their biggest rival Samsung, already have such a similar function of 120 fps on my Galaxy S4.