Samsung Galaxy S21 Ultra, 5G smartphone runs on the Android 11, One UI 3.1 operating system. It has 256GB storage and 12GB RAM.  It runs on the Exynos 2100 (5 nm) chipset.  It has a 6.8" screen-to-body ratio, Dynamic AMOLED 2X, 120Hz, HDR10+, 1500 nits (peak), 1440 x 3200 pixels, 20:9 ratio, Corning Gorilla Glass Victus