HBM. 1200 nits. Adaptive Refresh Rate. 48~120Hz. *Measured diagonally, Galaxy S23's screen size is 6.1" in the full rectangle and 5.9" with accounting for the rounded corners, Galaxy S23+'s screen size is 6.6" in the full rectangle and 6.4" with accounting for the rounded corners and Galaxy S23 Ultra's screen size is 6.8" in the full rectangle.