https://wccftech.com/iphone-13-mini-camera-lens-almost-same-size-as-iphone-12-pro-max/

The iPhone 13 and iPhone 13 mini may not ship with LTPO OLED panels like the more expensive iPhone 13 Pro and iPhone 13 Pro Max, but there are other changes to look forward to. It has been reported on multiple occasions that we should look forward to camera upgrades, and this case leak could put additional confidence in our expectations.

Multiple cases belonging to the iPhone 13 and iPhone 13 mini were leaked on Weibo, and shared by DuanRai on Twitter, showing massive differences between the iPhone 12’s camera lens size. On the Chinese microblogging website, the tipster who goes by the name ‘Old Explosion Technology’ used measuring tools to see the iPhone 13 and iPhone 13 mini camera lens’ size differences, and if you want to see a comparison, it is listed below.