Galaxy S26 Ultra vs Galaxy S25 Ultra size
The Galaxy S26 Ultra measures 163.6 x 78.1 x 7.9 mm and the Galaxy S25 Ultra measures 162.8 x 77.6 x 8.2 mm. The Galaxy S26 Ultra is the bigger phone. Its front covers 1.1% more area than the Galaxy S25 Ultra.
- Galaxy S26 Ultra214 g163.6 x 78.1 x 7.9 mm
- Galaxy S25 Ultra218 g162.8 x 77.6 x 8.2 mm
Outlines are drawn from published dimensions. Screen and camera shapes are simplified.
How the Galaxy S26 Ultra measures up
| Spec | Galaxy S26 Ultra | Galaxy S25 Ultra | Difference |
|---|---|---|---|
| Height | 163.6 mm 6.44 in | 162.8 mm 6.41 in | +0.8 mm (+0.5%) |
| Width | 78.1 mm 3.07 in | 77.6 mm 3.06 in | +0.5 mm (+0.6%) |
| Thickness | 7.9 mm 0.31 in | 8.2 mm 0.32 in | -0.3 mm (-3.7%) |
| Weight | 214 g 7.5 oz | 218 g 7.7 oz | -4 g (-1.8%) |
| Screen | 6.9 in | 6.9 in | Same |
| Front footprint | 127.8 cm² | 126.3 cm² | +1.4 cm² (+1.1%) |
What the difference feels like
The two are within 0.5 mm of each other in width, which is the measurement your grip notices most, so they should feel close to the same in the hand.
Height is almost identical, so they sit the same in a pocket.
Common questions
Is the Galaxy S26 Ultra bigger than the Galaxy S25 Ultra?
The Galaxy S26 Ultra is the bigger phone. Its front covers 1.1% more area than the Galaxy S25 Ultra. Height differs by 0.8 mm and width by 0.5 mm.
Will a Galaxy S25 Ultra case fit the Galaxy S26 Ultra?
No. A case is cut for one model's exact size, buttons and camera, and these two differ by 0.8 mm in height and 0.5 mm in width. Buy a case made for the Galaxy S26 Ultra.
Which is easier to use with one hand?
The Galaxy S25 Ultra, because it is 0.5 mm narrower. Width matters more than height for reaching across the screen with your thumb.
Cases and prices
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Sources
- Galaxy S26 Ultra: manufacturer spec page
- Galaxy S25 Ultra: manufacturer spec page
See each phone's page for the full spec: Galaxy S26 Ultra and Galaxy S25 Ultra.