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OnePlus 12 vs Pixel 9a: Size & Dimensions Compared

The OnePlus 12 is the larger phone, measuring 9.6mm taller and 2.5mm wider.

Visual Size Overlay

OnePlus 12Pixel 9a
164.3mm154.7mm+9.6mm75.8mm73.3mm+2.5mm10mm
Height Δ
+9.6mm
Width Δ
+2.5mm
Thickness Δ
+0.3mm
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.

DimensionOnePlus 12Pixel 9aDifference
Height164.3mm154.7mmPixel 9a -9.6mm (shorter)
Width75.8mm73.3mmPixel 9a -2.5mm (narrower)
Thickness9.2mm8.9mmPixel 9a -0.3mm (thinner)
Weight220g186gPixel 9a -34.0g (lighter)
Screen6.82"6.3"Pixel 9a -0.5" (smaller)

Visual Size Comparison

HeightOnePlus 12 +9.6mm
OnePlus 12
164.3mm
Pixel 9a
154.7mm
WidthOnePlus 12 +2.5mm
OnePlus 12
75.8mm
Pixel 9a
73.3mm
ThicknessOnePlus 12 +0.3mm
OnePlus 12
9.2mm
Pixel 9a
8.9mm

Button & Port Layout

Which is bigger?

The OnePlus 12 is the taller phone at 164.3mm (vs 154.7mm). It is also 34g 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.
SpecOnePlus 12Pixel 9a
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 OnePlus 12 to Pixel 9a?

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

Accessories for OnePlus 12

Spigen

Spigen Tough Armor for OnePlus 12

$17.99

View on Amazon

Ringke

Ringke Fusion-X MagSafe for OnePlus 12

$14.99

View on Amazon

Ringke

Ringke Fusion-X for OnePlus 12

$12.99

View on Amazon

Accessories for Pixel 9a

As an Amazon Associate, WillItSnap earns from qualifying purchases.

Frequently Asked Questions

Is OnePlus 12 bigger than Pixel 9a?

Yes, the OnePlus 12 is 9.6mm taller and 2.5mm wider. The OnePlus 12 weighs 220g vs 186g.

Are OnePlus 12 and Pixel 9a the same size?

No, the height differs by 9.6mm, width by 2.5mm, and thickness by 0.3mm.