Skip to content

Pixel 9a vs OnePlus 12: Size & Dimensions Compared

The OnePlus 12 is the larger phone, measuring 9.6mm shorter and 2.5mm narrower.

Visual Size Overlay

Pixel 9aOnePlus 12
154.7mm164.3mm-9.6mm73.3mm75.8mm-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 (flat vs curved) — screen protector won't adhere properly.

DimensionPixel 9aOnePlus 12Difference
Height154.7mm164.3mmOnePlus 12 +9.6mm (taller)
Width73.3mm75.8mmOnePlus 12 +2.5mm (wider)
Thickness8.9mm9.2mmOnePlus 12 +0.3mm (thicker)
Weight186g220gOnePlus 12 +34.0g (heavier)
Screen6.3"6.82"OnePlus 12 +0.5" (larger)

Visual Size Comparison

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

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.
SpecPixel 9aOnePlus 12
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 Pixel 9a to OnePlus 12?

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

Accessories for Pixel 9a

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

As an Amazon Associate, WillItSnap earns from qualifying purchases.

Frequently Asked Questions

Is Pixel 9a bigger than OnePlus 12?

No, the OnePlus 12 is 9.6mm taller. The Pixel 9a weighs 186g vs 220g.

Are Pixel 9a and OnePlus 12 the same size?

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