Device Size Comparison

Galaxy S23 Ultra vs Galaxy S25

Size Comparison Summary

Galaxy S23 Ultra measures 78.1 × 163.4 × 8.9 mm and weighs 234 g. Galaxy S25 measures 70.5 × 146.9 × 7.2 mm and weighs 162 g. By overall front-face area, Galaxy S23 Ultra is larger than Galaxy S25 (about 2405.1 mm² difference). Galaxy S23 Ultra is 72 g heavier than Galaxy S25. All figures use official millimeter dimensions.

Dimensions Table

Dimension	Galaxy S23 Ultra	Galaxy S25	Difference
Width	78.1 mm	70.5 mm	-7.6 mm
Height	163.4 mm	146.9 mm	-16.5 mm
Thickness	8.9 mm	7.2 mm	-1.7 mm
Weight	234 g	162 g	-72 g

Which is Bigger?

Overall size (width × height): Galaxy S23 Ultra has the larger footprint at 78.1 × 163.4 mm vs 70.5 × 146.9 mm (+2405.09 mm² area).
Width: Galaxy S23 Ultra is wider (78.1 mm vs 70.5 mm, +7.6 mm).
Height: Galaxy S23 Ultra is taller (163.4 mm vs 146.9 mm, +16.5 mm).

Weight Comparison

Galaxy S23 Ultra weighs 234 g and Galaxy S25 weighs 162 g — a difference of 72 g. Galaxy S23 Ultra is 44.4% heavier than Galaxy S25.

Thickness Comparison

Galaxy S23 Ultra is 8.9 mm thick and Galaxy S25 is 7.2 mm thick (+1.7 mm). Galaxy S23 Ultra is the thicker device in hand.

FAQ

Which is bigger, Galaxy S23 Ultra or Galaxy S25?: Galaxy S23 Ultra has the larger overall footprint (78.1 × 163.4 mm) compared with Galaxy S25 (70.5 × 146.9 mm).
How much heavier is Galaxy S23 Ultra than Galaxy S25?: Galaxy S23 Ultra weighs 234 g and Galaxy S25 weighs 162 g — a difference of 72 g.
Which device is thinner, Galaxy S23 Ultra or Galaxy S25?: Galaxy S25 is thinner at 7.2 mm vs 8.9 mm for Galaxy S23 Ultra.
What is the width difference between Galaxy S23 Ultra and Galaxy S25?: Galaxy S23 Ultra is 78.1 mm wide and Galaxy S25 is 70.5 mm wide (-7.6 mm).
Can I compare Galaxy S23 Ultra and Galaxy S25 visually?: Yes. Use the Sizology comparison tool to overlay or place both devices side by side at true millimeter scale with official dimensions.

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