Size comparison

Galaxy S24 Ultra vs OnePlus 12 size

The Galaxy S24 Ultra measures 162.3 x 79 x 8.6 mm and the OnePlus 12 measures 164.3 x 75.8 x 9.15 mm. The Galaxy S24 Ultra is the bigger phone. Its front covers 3.0% more area than the OnePlus 12.

Scaled to fit. Calibrate once to see real size.

Galaxy S24 Ultra232 g162.3 x 79 x 8.6 mm
OnePlus 12220 g164.3 x 75.8 x 9.2 mm

Outlines are drawn from published dimensions. Screen and camera shapes are simplified.

How the Galaxy S24 Ultra measures up

Height, Galaxy S24 Ultra

-2 mm

Width, Galaxy S24 Ultra

+3.2 mm

Thickness, Galaxy S24 Ultra

-0.55 mm

Weight, Galaxy S24 Ultra

+12 g

Spec	Galaxy S24 Ultra	OnePlus 12	Difference
Height	162.3 mm 6.39 in	164.3 mm 6.47 in	-2 mm (-1.2%)
Width	79 mm 3.11 in	75.8 mm 2.98 in	+3.2 mm (+4.2%)
Thickness	8.6 mm 0.34 in	9.15 mm 0.36 in	-0.55 mm (-6.0%)
Weight	232 g 8.2 oz	220 g 7.8 oz	+12 g (+5.5%)
Screen	6.8 in	6.82 in	-0.02 in (-0.3%)
Front footprint	128.2 cm²	124.5 cm²	+3.7 cm² (+3.0%)

What the difference feels like

The Galaxy S24 Ultra is 3.2 mm wider, an obvious difference in the hand. If you use your phone one-handed, the OnePlus 12 will be easier to reach across.

In a jeans pocket the OnePlus 12 sits 2 mm higher, about 0.08 inches.

The OnePlus 12 is 0.55 mm thicker. Manufacturers measure thickness without the camera bump, so the real difference at the camera can be larger.

The Galaxy S24 Ultra is 12 g heavier, which most people will not notice day to day.

Common questions

Is the Galaxy S24 Ultra bigger than the OnePlus 12?

The Galaxy S24 Ultra is the bigger phone. Its front covers 3.0% more area than the OnePlus 12. Height differs by 2 mm and width by 3.2 mm.

Will a OnePlus 12 case fit the Galaxy S24 Ultra?

No. A case is cut for one model's exact size, buttons and camera, and these two differ by 2 mm in height and 3.2 mm in width. Buy a case made for the Galaxy S24 Ultra.

Which is easier to use with one hand?

The OnePlus 12, because it is 3.2 mm narrower. Width matters more than height for reaching across the screen with your thumb.

Cases and prices

Galaxy S24 Ultra cases on Amazon Galaxy S24 Ultra on Amazon OnePlus 12 cases on Amazon OnePlus 12 on Amazon

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Related comparisons

Sources

Galaxy S24 Ultra: manufacturer spec page
OnePlus 12: manufacturer spec page

See each phone's page for the full spec: Galaxy S24 Ultra and OnePlus 12.