The 12 has the screen size of the 11 and the body size of the 11 pro. Seems like this generation, apple intentionally made the non pro better than what the 11
Apple iPhone 11 Pro and Pro Max Review - PhoneArena
iPhone 11, iPhone 11 Pro, and iPhone 11 Pro Max have all their specs seemingly leaked - GSMArena.com news
iPhone 11 Pro Screen Protector - $200 Protection
iPhone 11 Pro (64GB)
Apple iPhone 11 Pro Review | PCMag
iPhone 11 vs. iPhone 11 Pro vs. iPhone 11 Pro Max: Which should you buy? | Tom's Guide
Apple iPhone 11 Pro Max specs - PhoneArena
iPhone 12 Pro and Pro Max vs. iPhone 11 Pro and Pro Max: The verdict in 2021 - CNET
iPhone sizes (incl. iPhone 13) | Figma Community
iPhone 11 Pro - Technical Specifications
Apple iPhone 11 Pro (13th Gen) Dimensions & Drawings | Dimensions.com