Skip to content

Galaxy S23+ vs Galaxy S21: Size & Dimensions Compared

The Galaxy S23+ is the larger phone, measuring 6.1mm taller and 5.0mm wider.

Visual Size Overlay

Galaxy S23+Galaxy S21
157.8mm151.7mm+6.1mm76.2mm71.2mm+5.0mm10mm
Height Δ
+6.1mm
Width Δ
+5.0mm
Thickness Δ
-0.3mm
Case CompatibilityWon't Fit
  • Height differs by 6.1mm — case won't fit
  • Width differs by 5.0mm — case won't fit
  • Thickness differs by 0.3mm — may affect fit
Screen ProtectorNot Compatible

Screen sizes differ (6.6" vs 6.2") — protector won't fit.

DimensionGalaxy S23+Galaxy S21Difference
Height157.8mm151.7mmGalaxy S21 -6.1mm (shorter)
Width76.2mm71.2mmGalaxy S21 -5.0mm (narrower)
Thickness7.6mm7.9mmGalaxy S21 +0.3mm (thicker)
Weight196g169gGalaxy S21 -27.0g (lighter)
Screen6.6"6.2"Galaxy S21 -0.4" (smaller)

Visual Size Comparison

HeightGalaxy S23+ +6.1mm
Galaxy S23+
157.8mm
Galaxy S21
151.7mm
WidthGalaxy S23+ +5.0mm
Galaxy S23+
76.2mm
Galaxy S21
71.2mm
ThicknessGalaxy S21 +0.3mm
Galaxy S23+
7.6mm
Galaxy S21
7.9mm

Button & Port Layout

Which is bigger?

The Galaxy S23+ is the taller phone at 157.8mm (vs 151.7mm). It is also 27g 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 S23+Galaxy 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 S23+ to Galaxy S21?

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

As an Amazon Associate, WillItSnap earns from qualifying purchases.

Frequently Asked Questions

Is Galaxy S23+ bigger than Galaxy S21?

Yes, the Galaxy S23+ is 6.1mm taller and 5.0mm wider. The Galaxy S23+ weighs 196g vs 169g.

Are Galaxy S23+ and Galaxy S21 the same size?

No, the height differs by 6.1mm, width by 5.0mm, and thickness by 0.3mm.