iPhone SE (2nd gen) vs iPhone X: Size & Dimensions Compared

The iPhone X is the larger phone, measuring 5.2mm shorter and 3.6mm narrower.

DimensioniPhone SE (2nd gen)iPhone XDifference
Height138.4mm143.6mmiPhone X +5.2mm
Width67.3mm70.9mmiPhone X +3.6mm
Thickness7.3mm7.7mmiPhone X +0.4mm
Weight148g174giPhone X +26.0g
Screen4.7"5.8"iPhone X +1.1"

Visual Size Comparison

HeightiPhone X +5.2mm
iPhone SE (2nd gen)
138.4mm
iPhone X
143.6mm
WidthiPhone X +3.6mm
iPhone SE (2nd gen)
67.3mm
iPhone X
70.9mm
ThicknessiPhone X +0.4mm
iPhone SE (2nd gen)
7.3mm
iPhone X
7.7mm

Which is bigger?

The iPhone X is the taller phone at 143.6mm (vs 138.4mm). It is also 26g heavier.

Upgrading from iPhone SE (2nd gen) to iPhone X?

Different sizes mean your old case probably won't fit. You'll need a new one.

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Frequently Asked Questions

Is iPhone SE (2nd gen) bigger than iPhone X?

No, the iPhone X is 5.2mm taller. The iPhone SE (2nd gen) weighs 148g vs 174g.

Are iPhone SE (2nd gen) and iPhone X the same size?

No, the height differs by 5.2mm, width by 3.6mm, and thickness by 0.4mm.