Which iPhone is a showcase of innovation since iPhone X?
I would say you are asking the wrong question, which again, shows that you haven't the faintest idea of how Apple works, and how it has managed to stay ahead of the game for so long.
Apple has never been a company that produced revolutionary product after revolutionary product. It only seemed that way because the iPhone, MBA and iPad were released so close to each other, but I believe that if Steve Jobs were still around, we would still have continued to see constant iteration and refinement in their products.
This is the right way to design a product, compared to throwing out your existing design for something that is totally different (it's wasteful, and does not allow you to tap on existing technology). You settle on something that works, and then go on to pour ever-increasing resources into incremental improvements in the details. Every year, the iPhone improves in fairly predicable ways. The display is better, the processor and GPU are faster, the camera is better, Touch ID and Face ID did improve for a time, battery life is (generally) better etc.
None of these improvements are revolutionary, but they all add up to a solid list of year-over-year improvements, and Apple's financial results show that consumers agree with them. The crux here isn't that Apple has changed (regardless of whatever misgivings you may have of Tim Cook as CEO, recent donations to Trump and all), but that Apple hasn't changed. Their strength has always been in their outstanding design and product integration, and their ability to build via iteration.
For example, the iPhone is able to provide the technological groundwork and the cash flow for the vision pro. It's not hard to see how a feature like double tap on the Apple Watch can be expanded to let you control the Vision Pro. The iPhone's camera is capable of recording spatial video for the vision pro as well, something that normally would require the cameras to be further apart, and is an example of how Apple is able to rely on its ecosystem to give it a massive advantage in whatever comes next.
This is what I generally like about Apple keynotes and presentations. The takeaways often end up being related more to how Apple sets the stage for the future. Certain announcements and features make much more sense when thinking about what Apple will likely unveil in the coming years. With companies like Samsung, it's the opposite. I am just not seeing any coherent vision when it comes to the future.
I guess it doesn't really matter whether you bother trying to understand Apple users at the end of the day, or dismiss us as technological luddites who are afraid and incapable of change. You can continue to buy the android phones with their inflated specs that you so love to tout, we will continue to buy the apple products that work great for us (I have just ended another week of teaching with my iPad in the classroom), we each presumably continue to be happy with our purchases, and we will let the financial earnings of the respective companies speak for themselves each quarter.
I will end with one of my pet quotes - that you (and everyone else like you) continue to bet against Apple to your own detriment.
