Device Size Comparison

Galaxy S23 Ultra vs Galaxy S26 Ultra

Size Comparison Summary

Galaxy S23 Ultra measures 78.1 × 163.4 × 8.9 mm and weighs 234 g. Galaxy S26 Ultra measures 78.1 × 163.6 × 7.9 mm and weighs 214 g. By overall front-face area, Galaxy S26 Ultra is larger than Galaxy S23 Ultra (about 15.6 mm² difference). Galaxy S23 Ultra is 20 g heavier than Galaxy S26 Ultra. All figures use official millimeter dimensions.

Dimensions Table

Dimension	Galaxy S23 Ultra	Galaxy S26 Ultra	Difference
Width	78.1 mm	78.1 mm	0 mm
Height	163.4 mm	163.6 mm	+0.2 mm
Thickness	8.9 mm	7.9 mm	-1 mm
Weight	234 g	214 g	-20 g

Which is Bigger?

Overall size (width × height): Galaxy S26 Ultra has the larger footprint at 78.1 × 163.6 mm vs 78.1 × 163.4 mm (+15.62 mm² area).
Width: Galaxy S23 Ultra is wider (78.1 mm vs 78.1 mm, 0 mm).
Height: Galaxy S26 Ultra is taller (163.6 mm vs 163.4 mm, +0.2 mm).

Weight Comparison

Galaxy S23 Ultra weighs 234 g and Galaxy S26 Ultra weighs 214 g — a difference of 20 g. Galaxy S23 Ultra is 9.3% heavier than Galaxy S26 Ultra.

Thickness Comparison

Galaxy S23 Ultra is 8.9 mm thick and Galaxy S26 Ultra is 7.9 mm thick (+1 mm). Galaxy S23 Ultra is the thicker device in hand.

FAQ

Which is bigger, Galaxy S23 Ultra or Galaxy S26 Ultra?: Galaxy S26 Ultra has the larger overall footprint (78.1 × 163.6 mm) compared with Galaxy S23 Ultra (78.1 × 163.4 mm).
How much heavier is Galaxy S23 Ultra than Galaxy S26 Ultra?: Galaxy S23 Ultra weighs 234 g and Galaxy S26 Ultra weighs 214 g — a difference of 20 g.
Which device is thinner, Galaxy S23 Ultra or Galaxy S26 Ultra?: Galaxy S26 Ultra is thinner at 7.9 mm vs 8.9 mm for Galaxy S23 Ultra.
What is the width difference between Galaxy S23 Ultra and Galaxy S26 Ultra?: Galaxy S23 Ultra is 78.1 mm wide and Galaxy S26 Ultra is 78.1 mm wide (0 mm).
Can I compare Galaxy S23 Ultra and Galaxy S26 Ultra 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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Open Galaxy S23 Ultra and Galaxy S26 Ultra in the comparison tool