Apple offers two display sizes across the iPhone 15 series: 6.1-inch and 6.7-inch. The iPhone 15 and iPhone 15 Pro use the smaller 6.1-inch panels, while the iPhone 15 Plus and iPhone 15 Pro Max use 6.7-inch displays. The Pro models also feature 120Hz ProMotion refresh rates and always-on display technology, while the base models retain standard refresh displays for battery efficiency. https://medium.com/@easyphones52/what-display-sizes-are-available-across-all-iphone-15-models-9afc77c594a5