Note: In the final results shown at the end of this video, and a few times prior, I accidentally flipped the iPhone 11's battery results for iOS 14.8 and iOS 15. The correct numbers for the iPhone 11 are the following: 7 hrs & 32 min for iOS 14.8 and 7 hrs & 28 min for iOS 15. This makes iOS 14.8 the winner for the iPhone 11 in this test. Apologies for the confusion. Twitter: https://twitter.com/UltimateiDevice Instagram: https://www.instagram.com/ultimateidevicevids/ Facebook: https://www.facebook.com/pages/UltimateiDeviceVids/1476353952628051