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iPhone 8 vs iPhone 12 Pro Max: Size & Dimensions Compared

The iPhone 12 Pro Max is the larger phone, measuring 22.4mm shorter and 10.8mm narrower.

Visual Size Overlay

iPhone 8iPhone 12 Pro Max
138.4mm160.8mm-22.4mm67.3mm78.1mm-10.8mm10mm
Height Δ
-22.4mm
Width Δ
-10.8mm
Thickness Δ
-0.1mm
Case CompatibilityWon't Fit
  • Camera module layout is different — cutout won't align
Screen ProtectorNot Compatible

Screen sizes differ (4.7" vs 6.7") — protector won't fit.

DimensioniPhone 8iPhone 12 Pro MaxDifference
Height138.4mm160.8mmiPhone 12 Pro Max +22.4mm (taller)
Width67.3mm78.1mmiPhone 12 Pro Max +10.8mm (wider)
Thickness7.3mm7.4mmiPhone 12 Pro Max +0.1mm (thicker)
Weight148g228giPhone 12 Pro Max +80.0g (heavier)
Screen4.7"6.7"iPhone 12 Pro Max +2.0" (larger)

Visual Size Comparison

HeightiPhone 12 Pro Max +22.4mm
iPhone 8
138.4mm
iPhone 12 Pro Max
160.8mm
WidthiPhone 12 Pro Max +10.8mm
iPhone 8
67.3mm
iPhone 12 Pro Max
78.1mm
ThicknessiPhone 12 Pro Max +0.1mm
iPhone 8
7.3mm
iPhone 12 Pro Max
7.4mm

Button & Port Layout

Which is bigger?

The iPhone 12 Pro Max is the taller phone at 160.8mm (vs 138.4mm). It is also 80g heavier.

Wireless Charging & MagSafe Compatibility

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

  • Your MagSafe charger will charge the iPhone 8 via Qi, but it won't magnetically snap on.
  • Only the iPhone 12 Pro Max has built-in magnets for MagSafe accessories. The iPhone 8 needs a magnetic case or ring adapter.
SpeciPhone 8iPhone 12 Pro Max
Wireless Charging7.5W15W
Qi VersionQiQi
MagSafeNoGen 1
Built-in MagnetsNoYes
Magnet Ringunknownclosed circle

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 12 Pro 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 12 Pro Max?

No, the iPhone 12 Pro Max is 22.4mm taller. The iPhone 8 weighs 148g vs 228g.

Are iPhone 8 and iPhone 12 Pro Max the same size?

No, the height differs by 22.4mm, width by 10.8mm, and thickness by 0.1mm.