The iPhone 4 is the oldest model that supports iOS 7, and until today, many users were complaining of jerky animations and long load times.
Thankfully, with today’s iOS 7.1 release, Apple has considerably optimized the operating system, bringing with it a multitude of speed improvements on the iPhone 4.
Ars Technica has put together a helpful chart that compares loading times between iOS 6.1.3, iOS 7.0 and iOS 7.1. Here are the results:
According to Ars Technica:
“There’s a measurable improvement over iOS 7.0 across all of these apps, some more noticeable than others. In a few instances, iOS 7.1 very nearly catches up with iOS 6.1.3, which is impressive given the gap between the two operating systems in some of these apps. It’s not a complete recovery from the original iOS 7.0 release, but it’s about as good as Apple can do with hardware this old. The small speed improvements are present throughout the operating system, and this makes the iPhone 4 feel more responsive than it did, if not always as responsive as it once was.
iOS 7.1 also helps with the UI jerkiness that was all over the place in 7.0. It’s easiest to capture the difference in video—actions like launching apps or pulling up the Control Center shade are always visibly jerky in iOS 7.0, but they’re smooth (or at least smoother) in the new update.”
You can read more details at the Ars Technica site here.