I still own an iPhone4S that I tried to use when there was an issue with the long-in-the-tooth (5 years old, 4 years newer than my 4S) but still perfectly suppo

I still own an iPhone4S that I tried to use when there was an issue with the long-in-the-tooth (5 years old, 4 years newer than my 4S) but still perfectly supported 6S until it got fixed. It still runs iOS 6 which it came with (yes, that's a security risk I was willing to take for a couple of days). It's not just the apps that are missing, and the low resolution; I preferred its theme, and the smaller screen but it's just not fun to use anymore now that I've gotten used to the snappy everything, the dictation while driving, the better camera, etc. When I got the 6S, it was for app support - I didn't feel anything was missing - but I won't switch back to 4S even if it did get a security update. I'll likely get a new iphone when iOS 15 comes out and the 6S isn't supported; There's nothing I know I need it for, but I suspect I won't be satisfied with the 6S after I do have it. Re:ipads, though - my childern's 2013 ipad mini is essentially as good as their new one for all their uses, it's only missing software and security updated that prompted getting a new one.