For people who heavily consider a phone’s size before buying, Apple has made things interesting with the iPhone 12 lineup.

When it comes to the size of the iPhone, a lot of us who tend to buy the most mainstream iPhone are a bit like the proverbial frog in the gradually boiling pot of water. In upgrading from the iPhone 4 to 5, from 5s to 6, and from 7 to X, our phones just keep getting a little bit bigger.
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https://www.macworld.com/article/3585793/size-matters-choosing-between-the-iphone-12-mini-and-iphone-12-pro.html