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Pixel 9a vs Galaxy S20: Size & Dimensions Compared

The Pixel 9a is the larger phone, measuring 3.0mm taller and 4.2mm wider.

Visual Size Overlay

Pixel 9aGalaxy S20
154.7mm151.7mm+3.0mm73.3mm69.1mm+4.2mm10mm
Height Δ
+3.0mm
Width Δ
+4.2mm
Thickness Δ
+1.0mm
Case CompatibilityWon't Fit
  • Camera module layout is different — cutout won't align
Screen ProtectorNot Compatible

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

DimensionPixel 9aGalaxy S20Difference
Height154.7mm151.7mmGalaxy S20 -3.0mm (shorter)
Width73.3mm69.1mmGalaxy S20 -4.2mm (narrower)
Thickness8.9mm7.9mmGalaxy S20 -1.0mm (thinner)
Weight186g163gGalaxy S20 -23.0g (lighter)
Screen6.3"6.2"Galaxy S20 -0.1" (smaller)

Visual Size Comparison

HeightPixel 9a +3.0mm
Pixel 9a
154.7mm
Galaxy S20
151.7mm
WidthPixel 9a +4.2mm
Pixel 9a
73.3mm
Galaxy S20
69.1mm
ThicknessPixel 9a +1.0mm
Pixel 9a
8.9mm
Galaxy S20
7.9mm

Button & Port Layout

Which is bigger?

The Pixel 9a is the taller phone at 154.7mm (vs 151.7mm). It is also 23g 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.
SpecPixel 9aGalaxy S20
Wireless Charging15W10W
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 Pixel 9a to Galaxy S20?

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

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Frequently Asked Questions

Is Pixel 9a bigger than Galaxy S20?

Yes, the Pixel 9a is 3.0mm taller and 4.2mm wider. The Pixel 9a weighs 186g vs 163g.

Are Pixel 9a and Galaxy S20 the same size?

No, the height differs by 3.0mm, width by 4.2mm, and thickness by 1.0mm.