I prefer Android to iOS, and there are a few features I miss every time I switch to an iPhone. Likewise, I sometimes miss certain things from my iPhone, which I use as my secondary device, on my Android phone.
Just last week, I wanted to mount a TV on a wall. I temporarily screwed the mounting frame to the wall and wanted to check if it was level. If I had my iPhone, I could’ve opened the built-in Measure app and used the Level tool to check the alignment.