Its also 2x faster loading webpages and 1x faster loading the music app.As expected, the new iPhone is 18 percent thinner (0.30 inch vs. 0.37 inch thick) than the iPhone 4S. Apple says it's the thinnest handset around, but that's a race that changes often. That means it's also 20 percent lighter for a total of 3.95 ounces. The Retina Display expands from 3.5 inches (its size since the original iPhone) to 4 inches. The total resolution remains the same, though, at 326 pixels per inch. The total pixel count is 1,136x640, and we now have a 16:9 aspect ratio.