How big is the external screen of the S24 compared to older devices?

The Galaxy S24 series has slightly bigger screen for the S24 and S24+ compared to previous model (S23 and S24+)

The Ultra variant has the same size.

S24 Ultra is 6.8” (S23 Ultra is 6.8”)

S24+ is 6.7” (S23+ is 6.6”)

S24 is 6.2” (S23 is 6.1”)