My experience on my 2018 Pro is that 26.1 is both much better performance and battery life.Thank you for this comparison! Was super tempted to grab the M4 iPad when it came out last year, but decided to keep using my 3rd gen iPad Pro. Now that iPadOS 26 is realllyyy slowing it down, I just might grab M5 (unless 26.1 somehow fixes performance problems which doesn't look promising).