Here are the measures of iPhone SE (4.7" screen) compared to iPhone XS (5.8" screen):
138.4 x 67.3 x 7.3 mm (5.45 x 2.65 x 0.29 in)
143.6 x 70.9 x 7.7 mm (5.65 x 2.79 x 0.30 in)
For half a cm extra in length I get 2.5 cm extra in screen size with the XS. I would have liked a smaller phone and if this were similar in size to the original SE, I might have switched, but the true size difference between this SE and a phone considered "much larger" is negligible (I own both).
138.4 x 67.3 x 7.3 mm (5.45 x 2.65 x 0.29 in)
143.6 x 70.9 x 7.7 mm (5.65 x 2.79 x 0.30 in)
For half a cm extra in length I get 2.5 cm extra in screen size with the XS. I would have liked a smaller phone and if this were similar in size to the original SE, I might have switched, but the true size difference between this SE and a phone considered "much larger" is negligible (I own both).