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iPhone 8 vs iPhone XS Max: Size & Dimensions Compared

The iPhone XS Max is the larger phone, measuring 19.1mm shorter and 10.1mm narrower.

Visual Size Overlay

iPhone 8iPhone XS Max
138.4mm157.5mm-19.1mm67.3mm77.4mm-10.1mm10mm
Height Δ
-19.1mm
Width Δ
-10.1mm
Thickness Δ
-0.4mm
Case CompatibilityWon't Fit
  • Camera module layout is different — cutout won't align
Screen ProtectorNot Compatible

Screen sizes differ (4.7" vs 6.5") — protector won't fit.

DimensioniPhone 8iPhone XS MaxDifference
Height138.4mm157.5mmiPhone XS Max +19.1mm (taller)
Width67.3mm77.4mmiPhone XS Max +10.1mm (wider)
Thickness7.3mm7.7mmiPhone XS Max +0.4mm (thicker)
Weight148g208giPhone XS Max +60.0g (heavier)
Screen4.7"6.5"iPhone XS Max +1.8" (larger)

Visual Size Comparison

HeightiPhone XS Max +19.1mm
iPhone 8
138.4mm
iPhone XS Max
157.5mm
WidthiPhone XS Max +10.1mm
iPhone 8
67.3mm
iPhone XS Max
77.4mm
ThicknessiPhone XS Max +0.4mm
iPhone 8
7.3mm
iPhone XS Max
7.7mm

Button & Port Layout

Which is bigger?

The iPhone XS Max is the taller phone at 157.5mm (vs 138.4mm). It is also 60g 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 8iPhone XS Max
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 8 to iPhone XS Max?

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 8 bigger than iPhone XS Max?

No, the iPhone XS Max is 19.1mm taller. The iPhone 8 weighs 148g vs 208g.

Are iPhone 8 and iPhone XS Max the same size?

No, the height differs by 19.1mm, width by 10.1mm, and thickness by 0.4mm.