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OnePlus Open vs Pixel 9a: Size & Dimensions Compared

The Pixel 9a is the larger phone, measuring 1.3mm shorter and 0.0mm narrower.

Visual Size Overlay

OnePlus OpenPixel 9a
153.4mm154.7mm-1.3mm73.3mm73.3mm10mm
Height Δ
-1.3mm
Width Δ
Same
Thickness Δ
+2.8mm
Case CompatibilityWon't Fit
  • Camera module layout is different — cutout won't align
Screen ProtectorCompatible

Same screen size (6.3") with minimal width difference — should fit.

DimensionOnePlus OpenPixel 9aDifference
Height153.4mm154.7mmPixel 9a +1.3mm (taller)
Width73.3mm73.3mmSame
Thickness11.7mm8.9mmPixel 9a -2.8mm (thinner)
Weight239g186gPixel 9a -53.0g (lighter)
Screen6.31"6.3"Same

Visual Size Comparison

HeightPixel 9a +1.3mm
OnePlus Open
153.4mm
Pixel 9a
154.7mm
WidthSame
OnePlus Open
73.3mm
Pixel 9a
73.3mm
ThicknessOnePlus Open +2.8mm
OnePlus Open
11.7mm
Pixel 9a
8.9mm

Button & Port Layout

Which is bigger?

The Pixel 9a is the taller phone at 154.7mm (vs 153.4mm). It but is 53g heavier.

Wireless Charging & MagSafe Compatibility

Only one phone supports wireless charging.

  • The OnePlus Open does not support wireless charging. Only the Pixel 9a can use a wireless charger.
SpecOnePlus OpenPixel 9a
Wireless ChargingNo15W
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 OnePlus Open to Pixel 9a?

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

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Frequently Asked Questions

Is OnePlus Open bigger than Pixel 9a?

No, the Pixel 9a is 1.3mm taller. The OnePlus Open weighs 239g vs 186g.

Are OnePlus Open and Pixel 9a the same size?

No, the height differs by 1.3mm, width by 0.0mm, and thickness by 2.8mm.