A while ago, I got the 4S. Great phone does everything with no issues. Then, iOS 7 came along and brought a ton of new features but along with that were bad features as well. I recently got my iPhone 4S to iOS 6 and have picked using that over my iPhone 5 on iOS 9 just because iOS 6 is much better. I couldn't even scroll through my messages using my iPhone 4S on iOS 9 but with iOS 6 I can. My 5 goes through the same struggle as well. These are not the only issues though, eyes. The harsh colors on iOS 7+ hurt my eyes. Especially when texting a non-iPhone. I know the 4S/5 may be on their way out soon as well and I'd rather not be stuck with a OS that is a struggle to use.