Do you know what is the deference between the last iPhone camera and the new?

The latest Iphone camera got higher mega pixel i think  12mp. 

With New iPhone iSight camera has a new sensor with Focus Pixels and new video features, like1080p HD at60 fps, slo-mo at240 fps, and time-lapse video mode. So you’ll have more reasons to capture more moments on video, too.

In previous iPhone camera has  1080p HD video recording (30 fps),Slo-mo video (120 fps).

Here is the comparison between camera specs or iPhone6 and iPhone5S:-

iPhone6:-

8MP camera,1/3.06-inch (or similar) sensor, true-tone flash,f/2.2 aperture dual-LED flash, phase detection

iPhone5S:-

8-megapixel1/3.06-inch sensor, f/2/2, dual-tone LED flash