Device Size Comparison

Galaxy S25 Ultra vs Galaxy S26 Ultra

Size Comparison Summary

Galaxy S25 Ultra measures 77.6 × 162.8 × 8.2 mm and weighs 218 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 S25 Ultra (about 143.9 mm² difference). Galaxy S25 Ultra is 4 g heavier than Galaxy S26 Ultra. All figures use official millimeter dimensions.

Dimensions Table

Dimension	Galaxy S25 Ultra	Galaxy S26 Ultra	Difference
Width	77.6 mm	78.1 mm	+0.5 mm
Height	162.8 mm	163.6 mm	+0.8 mm
Thickness	8.2 mm	7.9 mm	-0.3 mm
Weight	218 g	214 g	-4 g

Which is Bigger?

Overall size (width × height): Galaxy S26 Ultra has the larger footprint at 78.1 × 163.6 mm vs 77.6 × 162.8 mm (+143.88 mm² area).
Width: Galaxy S26 Ultra is wider (78.1 mm vs 77.6 mm, +0.5 mm).
Height: Galaxy S26 Ultra is taller (163.6 mm vs 162.8 mm, +0.8 mm).

Weight Comparison

Galaxy S25 Ultra weighs 218 g and Galaxy S26 Ultra weighs 214 g — a difference of 4 g. Galaxy S25 Ultra is 1.9% heavier than Galaxy S26 Ultra.

Thickness Comparison

Galaxy S25 Ultra is 8.2 mm thick and Galaxy S26 Ultra is 7.9 mm thick (+0.3 mm). Galaxy S25 Ultra is the thicker device in hand.

FAQ

Which is bigger, Galaxy S25 Ultra or Galaxy S26 Ultra?: Galaxy S26 Ultra has the larger overall footprint (78.1 × 163.6 mm) compared with Galaxy S25 Ultra (77.6 × 162.8 mm).
How much heavier is Galaxy S25 Ultra than Galaxy S26 Ultra?: Galaxy S25 Ultra weighs 218 g and Galaxy S26 Ultra weighs 214 g — a difference of 4 g.
Which device is thinner, Galaxy S25 Ultra or Galaxy S26 Ultra?: Galaxy S26 Ultra is thinner at 7.9 mm vs 8.2 mm for Galaxy S25 Ultra.
What is the width difference between Galaxy S25 Ultra and Galaxy S26 Ultra?: Galaxy S25 Ultra is 77.6 mm wide and Galaxy S26 Ultra is 78.1 mm wide (+0.5 mm).
Can I compare Galaxy S25 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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