As posted above, Android phones do show this behavior, too. However, and I'm no battery expert, I think that Apple was running the CPU incredibly close to the r

As posted above, Android phones do show this behavior, too. However, and I'm no battery expert, I think that Apple was running the CPU incredibly close to the red line and draining the batter faster than necessary. They already have the fastest phone CPU by quite a large margin, they could probably run it at a lower frequency that the batteries can better match, leading to slower degrading.