I am currently in the process of updating my iPhone 6s Plus, iPad Mini 4, and iPad Pro 9.7 to iOS 11.2 Public Beta 4. My iPhone 5c is still on iOS 10.3.3. I have already backed up all my devices to iCloud. After I am done updating iOS, I am going to update all the apps, and charge all the devices to 100%. I am also going to run some benchmarking tests on each device. I will post the test results when I am done.