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Galaxy S20 Ultra vs Galaxy A23: Size & Dimensions Compared

The Galaxy S20 Ultra is the larger phone, measuring 1.5mm taller and 0.9mm narrower.

Visual Size Overlay

Galaxy S20 UltraGalaxy A23
166.9mm165.4mm+1.5mm76mm76.9mm-0.9mm10mm
Height Δ
+1.5mm
Width Δ
-0.9mm
Thickness Δ
+0.4mm
Case CompatibilityWon't Fit
  • Camera module layout is different — cutout won't align
Screen ProtectorNot Compatible

Edge types differ (curved vs flat) — screen protector won't adhere properly.

DimensionGalaxy S20 UltraGalaxy A23Difference
Height166.9mm165.4mmGalaxy A23 -1.5mm (shorter)
Width76mm76.9mmGalaxy A23 +0.9mm (wider)
Thickness8.8mm8.4mmGalaxy A23 -0.4mm (thinner)
Weight220g195gGalaxy A23 -25.0g (lighter)
Screen6.9"6.6"Galaxy A23 -0.3" (smaller)

Visual Size Comparison

HeightGalaxy S20 Ultra +1.5mm
Galaxy S20 Ultra
166.9mm
Galaxy A23
165.4mm
WidthGalaxy A23 +0.9mm
Galaxy S20 Ultra
76mm
Galaxy A23
76.9mm
ThicknessGalaxy S20 Ultra +0.4mm
Galaxy S20 Ultra
8.8mm
Galaxy A23
8.4mm

Button & Port Layout

Which is bigger?

The Galaxy S20 Ultra is the taller phone at 166.9mm (vs 165.4mm). It is also 25g heavier.

Wireless Charging & MagSafe Compatibility

Only one phone supports wireless charging.

  • The Galaxy A23 does not support wireless charging. Only the Galaxy S20 Ultra can use a wireless charger.
SpecGalaxy S20 UltraGalaxy A23
Wireless Charging10WNo
Qi VersionQi
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 S20 Ultra to Galaxy A23?

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 S20 Ultra bigger than Galaxy A23?

Yes, the Galaxy S20 Ultra is 1.5mm taller and 0.9mm narrower. The Galaxy S20 Ultra weighs 220g vs 195g.

Are Galaxy S20 Ultra and Galaxy A23 the same size?

No, the height differs by 1.5mm, width by 0.9mm, and thickness by 0.4mm.