My iPad 4 was a serious investment. I don't think that I got $400 value out of it. There are many apps that it will no longer run, so I feel abandoned by Apple.
My $75 Fire HD 10 inch tablet is almost as powerful and runs everything I have tried.
The situation is far worse with the $200 Microsoft Surface tablet that I purchased 10 years ago. It was very underwhelming to begin with, and now it will run next to nothing. There is an online support group of people who for some strange reason are still fans of this tablet.
I've been arguing that people don't need tablets if they have a good smartphone.
Wednesday, December 1, 2021
Since I upgraded to IOS 15, my battery life has seemed to be worse. This video is interesting for limiting background traffic and protecting privacy.
Not sure about Android phones, but there may be some settings that are similar.