Galaxy S25 Ultra vs Galaxy S23 size
The Galaxy S25 Ultra measures 162.8 x 77.6 x 8.2 mm and the Galaxy S23 measures 146.3 x 70.9 x 7.6 mm. The Galaxy S25 Ultra is the bigger phone. Its front covers 21.8% more area than the Galaxy S23.
- Galaxy S25 Ultra218 g162.8 x 77.6 x 8.2 mm
- Galaxy S23168 g146.3 x 70.9 x 7.6 mm
Outlines are drawn from published dimensions. Screen and camera shapes are simplified.
How the Galaxy S25 Ultra measures up
| Spec | Galaxy S25 Ultra | Galaxy S23 | Difference |
|---|---|---|---|
| Height | 162.8 mm 6.41 in | 146.3 mm 5.76 in | +16.5 mm (+11.3%) |
| Width | 77.6 mm 3.06 in | 70.9 mm 2.79 in | +6.7 mm (+9.4%) |
| Thickness | 8.2 mm 0.32 in | 7.6 mm 0.30 in | +0.6 mm (+7.9%) |
| Weight | 218 g 7.7 oz | 168 g 5.9 oz | +50 g (+29.8%) |
| Screen | 6.9 in | 6.1 in | +0.8 in (+13.1%) |
| Front footprint | 126.3 cm² | 103.7 cm² | +22.6 cm² (+21.8%) |
What the difference feels like
The Galaxy S25 Ultra is 6.7 mm wider, an obvious difference in the hand. If you use your phone one-handed, the Galaxy S23 will be easier to reach across.
In a jeans pocket the Galaxy S25 Ultra sits 16.5 mm higher, about 0.65 inches.
The Galaxy S25 Ultra is 0.6 mm thicker. Manufacturers measure thickness without the camera bump, so the real difference at the camera can be larger.
At 50 g heavier (1.8 oz), the Galaxy S25 Ultra is noticeably heftier when you hold it up to read.
Common questions
Is the Galaxy S25 Ultra bigger than the Galaxy S23?
The Galaxy S25 Ultra is the bigger phone. Its front covers 21.8% more area than the Galaxy S23. Height differs by 16.5 mm and width by 6.7 mm.
Will a Galaxy S23 case fit the Galaxy S25 Ultra?
No. A case is cut for one model's exact size, buttons and camera, and these two differ by 16.5 mm in height and 6.7 mm in width. Buy a case made for the Galaxy S25 Ultra.
Which is easier to use with one hand?
The Galaxy S23, because it is 6.7 mm narrower. Width matters more than height for reaching across the screen with your thumb.
Cases and prices
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Sources
- Galaxy S25 Ultra: manufacturer spec page
- Galaxy S23: manufacturer spec page
See each phone's page for the full spec: Galaxy S25 Ultra and Galaxy S23.