iPhone 13 smartphone runs on the iOS 15, upgradable to iOS 15.2. It has 128GB storage and 4GB RAM.  It runs on the Apple A15 Bionic chipset.  It has a 6.1" screen-to-body ratio,  Super Retina XDR OLED, HDR10, Dolby Vision, 800 nits (HBM), 1200 nits (peak), 1170 x 2532 pixels, 19.5:9 ratio