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Galaxy S25 FE vs Galaxy S21: Size & Dimensions Compared

The Galaxy S25 FE is the larger phone, measuring 9.6mm taller and 5.4mm wider.

Visual Size Overlay

Galaxy S25 FEGalaxy S21
161.3mm151.7mm+9.6mm76.6mm71.2mm+5.4mm10mm
Height Δ
+9.6mm
Width Δ
+5.4mm
Thickness Δ
-0.5mm
Case CompatibilityWon't Fit
  • Height differs by 9.6mm — case won't fit
  • Width differs by 5.4mm — case won't fit
  • Thickness differs by 0.5mm — may affect fit
Screen ProtectorNot Compatible

Screen sizes differ (6.7" vs 6.2") — protector won't fit.

DimensionGalaxy S25 FEGalaxy S21Difference
Height161.3mm151.7mmGalaxy S21 -9.6mm (shorter)
Width76.6mm71.2mmGalaxy S21 -5.4mm (narrower)
Thickness7.4mm7.9mmGalaxy S21 +0.5mm (thicker)
Weight190g169gGalaxy S21 -21.0g (lighter)
Screen6.7"6.2"Galaxy S21 -0.5" (smaller)

Visual Size Comparison

HeightGalaxy S25 FE +9.6mm
Galaxy S25 FE
161.3mm
Galaxy S21
151.7mm
WidthGalaxy S25 FE +5.4mm
Galaxy S25 FE
76.6mm
Galaxy S21
71.2mm
ThicknessGalaxy S21 +0.5mm
Galaxy S25 FE
7.4mm
Galaxy S21
7.9mm

Button & Port Layout

Which is bigger?

The Galaxy S25 FE is the taller phone at 161.3mm (vs 151.7mm). It is also 21g 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.
SpecGalaxy S25 FEGalaxy S21
Wireless Charging15W15W
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 Galaxy S25 FE to Galaxy S21?

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

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Frequently Asked Questions

Is Galaxy S25 FE bigger than Galaxy S21?

Yes, the Galaxy S25 FE is 9.6mm taller and 5.4mm wider. The Galaxy S25 FE weighs 190g vs 169g.

Are Galaxy S25 FE and Galaxy S21 the same size?

No, the height differs by 9.6mm, width by 5.4mm, and thickness by 0.5mm.