So my mom can’t see well either. She was diagnosed with something (something they can’t fix atm) a while ago, I just don’t remember what it is called. But I guess the symptoms of macular degeneration and what my mom got are relatively similar. So she uses a Samsung tab as well as a S20+ and an iPhone 13 PM (all my old phones really). The tab is her go to device for most things other than regular calls. Also I feel like accessibility options especially when it comes to zoom etc are better on Android (on android most ui element react to zoom/font size, while on iOS they stay the same). She for some reason really don’t like the iPhone, but I assume thats because she’s used to the S20+.
So having used an iPhone for a while, this is what I think. Animations on iPhones make sense and flow from one animation to another better. And theres a feeback animation or haptic wise to most interactions. I have never used any Pixels, but from what I have seen, I think Pixels might be even better.