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iPhone XS vs iPhone 8: Size & Dimensions Compared

The iPhone XS is the larger phone, measuring 5.2mm taller and 3.6mm wider.

Visual Size Overlay

iPhone XSiPhone 8
143.6mm138.4mm+5.2mm70.9mm67.3mm+3.6mm10mm
Height Δ
+5.2mm
Width Δ
+3.6mm
Thickness Δ
+0.4mm
Case CompatibilityWon't Fit
  • Camera module layout is different — cutout won't align
Screen ProtectorNot Compatible

Screen sizes differ (5.8" vs 4.7") — protector won't fit.

DimensioniPhone XSiPhone 8Difference
Height143.6mm138.4mmiPhone 8 -5.2mm (shorter)
Width70.9mm67.3mmiPhone 8 -3.6mm (narrower)
Thickness7.7mm7.3mmiPhone 8 -0.4mm (thinner)
Weight177g148giPhone 8 -29.0g (lighter)
Screen5.8"4.7"iPhone 8 -1.1" (smaller)

Visual Size Comparison

HeightiPhone XS +5.2mm
iPhone XS
143.6mm
iPhone 8
138.4mm
WidthiPhone XS +3.6mm
iPhone XS
70.9mm
iPhone 8
67.3mm
ThicknessiPhone XS +0.4mm
iPhone XS
7.7mm
iPhone 8
7.3mm

Button & Port Layout

Which is bigger?

The iPhone XS is the taller phone at 143.6mm (vs 138.4mm). It is also 29g heavier.

Wireless Charging & MagSafe Compatibility

Wireless chargers work with both phones, but magnetic snap varies.

  • Both devices support wireless charging. Standard Qi/Qi2 chargers work with either phone.
SpeciPhone XSiPhone 8
Wireless Charging7.5W7.5W
Qi VersionQiQi
MagSafeNoNo
Built-in MagnetsNoNo

MagSafe cases are NOT cross-compatible between these devices — the case body is shaped to each phone, even though the internal magnet ring may be the same.

Upgrading from iPhone XS to iPhone 8?

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 XS bigger than iPhone 8?

Yes, the iPhone XS is 5.2mm taller and 3.6mm wider. The iPhone XS weighs 177g vs 148g.

Are iPhone XS and iPhone 8 the same size?

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