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iPhone 12 mini vs iPhone SE (3rd gen): Size & Dimensions Compared

The iPhone SE (3rd gen) is the larger phone, measuring 6.9mm shorter and 3.1mm narrower.

Visual Size Overlay

iPhone 12 miniiPhone SE (3rd gen)
131.5mm138.4mm-6.9mm64.2mm67.3mm-3.1mm10mm
Height Δ
-6.9mm
Width Δ
-3.1mm
Thickness Δ
+0.1mm
Case CompatibilityWon't Fit
  • Camera module layout is different — cutout won't align
Screen ProtectorNot Compatible

Screen sizes differ (5.4" vs 4.7") — protector won't fit.

DimensioniPhone 12 miniiPhone SE (3rd gen)Difference
Height131.5mm138.4mmiPhone SE (3rd gen) +6.9mm (taller)
Width64.2mm67.3mmiPhone SE (3rd gen) +3.1mm (wider)
Thickness7.4mm7.3mmiPhone SE (3rd gen) -0.1mm (thinner)
Weight135g144giPhone SE (3rd gen) +9.0g (heavier)
Screen5.4"4.7"iPhone SE (3rd gen) -0.7" (smaller)

Visual Size Comparison

HeightiPhone SE (3rd gen) +6.9mm
iPhone 12 mini
131.5mm
iPhone SE (3rd gen)
138.4mm
WidthiPhone SE (3rd gen) +3.1mm
iPhone 12 mini
64.2mm
iPhone SE (3rd gen)
67.3mm
ThicknessiPhone 12 mini +0.1mm
iPhone 12 mini
7.4mm
iPhone SE (3rd gen)
7.3mm

Button & Port Layout

Which is bigger?

The iPhone SE (3rd gen) is the taller phone at 138.4mm (vs 131.5mm). It is also 9g heavier.

Wireless Charging & MagSafe Compatibility

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

  • Your MagSafe charger will charge the iPhone SE (3rd gen) via Qi, but it won't magnetically snap on.
  • Only the iPhone 12 mini has built-in magnets for MagSafe accessories. The iPhone SE (3rd gen) needs a magnetic case or ring adapter.
SpeciPhone 12 miniiPhone SE (3rd gen)
Wireless Charging15W7.5W
Qi VersionQiQi
MagSafeGen 1No
Built-in MagnetsYesNo
Magnet Ringclosed circleunknown

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 12 mini to iPhone SE (3rd gen)?

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 12 mini bigger than iPhone SE (3rd gen)?

No, the iPhone SE (3rd gen) is 6.9mm taller. The iPhone 12 mini weighs 135g vs 144g.

Are iPhone 12 mini and iPhone SE (3rd gen) the same size?

No, the height differs by 6.9mm, width by 3.1mm, and thickness by 0.1mm.