I've now had my mini for a week and have decided to return it. It was nagging at me that the mini was simply a miniaturised version of Apple's larger phones - like a model car vs the real thing. The screen elements are simply shrunken down to fit the smaller display. I booted up a couple of Lumia Windows phones I had lying around, with much smaller screens than the mini. The readability was far better. Better choice of fonts specifically to suit a smaller display for starters. For me the mini display is like those nutrition labels or instructions on food items in the supermarket, where you have to peer and engage your eyes' small-font mode. I tried, but I feel Apple should have designed the UI display specifically for this model. I've ordered an iPhone 12 to replace it.