Galaxy S26 Ultra vs OnePlus 15 size
The Galaxy S26 Ultra measures 163.6 x 78.1 x 7.9 mm and the OnePlus 15 measures 161.42 x 76.67 x 8.2 mm. The Galaxy S26 Ultra is the bigger phone. Its front covers 3.2% more area than the OnePlus 15.
- Galaxy S26 Ultra214 g163.6 x 78.1 x 7.9 mm
- OnePlus 15215 g161.4 x 76.7 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 | OnePlus 15 | Difference |
|---|---|---|---|
| Height | 163.6 mm 6.44 in | 161.42 mm 6.36 in | +2.18 mm (+1.4%) |
| Width | 78.1 mm 3.07 in | 76.67 mm 3.02 in | +1.43 mm (+1.9%) |
| Thickness | 7.9 mm 0.31 in | 8.2 mm 0.32 in | -0.3 mm (-3.7%) |
| Weight | 214 g 7.5 oz | 215 g 7.6 oz | -1 g (-0.5%) |
| Screen | 6.9 in | 6.78 in | +0.12 in (+1.8%) |
| Front footprint | 127.8 cm² | 123.8 cm² | +4 cm² (+3.2%) |
What the difference feels like
The Galaxy S26 Ultra is 1.4 mm wider. That is small, but you can feel it when you wrap your hand around the phone, and it adds a little stretch for one-handed typing.
In a jeans pocket the Galaxy S26 Ultra sits 2.2 mm higher, about 0.09 inches.
Common questions
Is the Galaxy S26 Ultra bigger than the OnePlus 15?
The Galaxy S26 Ultra is the bigger phone. Its front covers 3.2% more area than the OnePlus 15. Height differs by 2.2 mm and width by 1.4 mm.
Will a OnePlus 15 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 2.2 mm in height and 1.4 mm in width. Buy a case made for the Galaxy S26 Ultra.
Which is easier to use with one hand?
The OnePlus 15, because it is 1.4 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
- OnePlus 15: manufacturer spec page
See each phone's page for the full spec: Galaxy S26 Ultra and OnePlus 15.