The actual comparison shows that iOS 12 is about 20 seconds faster in system boot speed, and the startup response of Apple's built-in applications is faster. The most obvious is that the keyboard startup speed is much faster than upgrading iPhone 5s for iOS 12.
In addition, iApple Bytes also performed the same test on iPhone 6, iPhone 6s, and iPhone 7. It turns out that the newer mobile phones, the less obvious this difference. Although iOS 11 is a leader in individual applications, iOS 12 is still faster than iOS 11 in general.
In fact, as early as August 14th, Apple pushed the iOS 12 developer preview Beta 7 system update, but due to the performance of underground, catastrophic, unstable, etc., the line was only pulled out in just over 3 hours. And stop the OTA update. On August 16th, Apple re-launched the iOS 12 Beta test version. Users who have already installed Beta 6 can skip the Beta 7 update.
iOS 12 compatible devices:
iPhone X, iPhone 8, iPhone 8 Plus, iPhone 7, iPhone 7 Plus, iPhone 6s, iPhone 6s Plus, iPhone 6, iPhone 6 Plus, iPhone SE, iPhone 5s.
12.9-inch iPad Pro second generation, 12.9-inch iPad Pro first generation, 10.5-inch iPad Pro, 9.7-inch iPad Pro, iPad Air 2, iPad Air, iPad fifth generation, iPad sixth generation, iPad mini 4, iPad mini 3 , iPad mini 2.
iPod touch sixth generation