I don't know why this doesn't get covered more. Apple inserts a deliberate slow down into every update, but I never see them taken to task for it (maybe I miss it?). I'm a programmer and I recognize what they're doing (inserting pauses into the UI transitions). By doing this they make the phone feel a tiny bit slower without affecting any benchmarks that reviewers run (benchmarks don't interact with the UI). It's pretty clever in its simplicity, but also very obvious once you notice it, and it annoys me when it happens. This last one (10.3.x) is especially blatant on my SE because they didn't patch it through for screen taps like they usually do (presumably an oversight). PROOF: 1. Just open a Folder and then press the Home button. Notice the tiny delay that's been inserted between you pressing Home button and the Folder closing animation beginning. That wasn't there before. 2. To see what it was like before the 10.3.x patch, just open the same Folder and tap anywhere on the homescreen instead of pressing Home. You'll see there's no delay at all. Tested on: iPhone SE, 2 x iPhone 6. Both 10.3 and 10.3.1. Confirmed by readers below on 6S. The delay when you press the Home button isn't a limitation of the hardware, it's purely artificial, programmed into the software. I've noticed it many times over the years. Why don't reviewers talk about this?