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OnePlus 13 vs Pixel 3a: Size & Dimensions Compared

The OnePlus 13 is the larger phone, measuring 11.6mm taller and 6.4mm wider.

Visual Size Overlay

OnePlus 13Pixel 3a
162.9mm151.3mm+11.6mm76.5mm70.1mm+6.4mm10mm
Height Δ
+11.6mm
Width Δ
+6.4mm
Thickness Δ
+0.3mm
Case CompatibilityWon't Fit
  • Camera module layout is different — cutout won't align
Screen ProtectorNot Compatible

Screen sizes differ (6.82" vs 5.6") — protector won't fit.

DimensionOnePlus 13Pixel 3aDifference
Height162.9mm151.3mmPixel 3a -11.6mm (shorter)
Width76.5mm70.1mmPixel 3a -6.4mm (narrower)
Thickness8.5mm8.2mmPixel 3a -0.3mm (thinner)
Weight213g147gPixel 3a -66.0g (lighter)
Screen6.82"5.6"Pixel 3a -1.2" (smaller)

Visual Size Comparison

HeightOnePlus 13 +11.6mm
OnePlus 13
162.9mm
Pixel 3a
151.3mm
WidthOnePlus 13 +6.4mm
OnePlus 13
76.5mm
Pixel 3a
70.1mm
ThicknessOnePlus 13 +0.3mm
OnePlus 13
8.5mm
Pixel 3a
8.2mm

Button & Port Layout

Which is bigger?

The OnePlus 13 is the taller phone at 162.9mm (vs 151.3mm). It is also 66g heavier.

Wireless Charging & MagSafe Compatibility

Only one phone supports wireless charging.

  • The Pixel 3a does not support wireless charging. Only the OnePlus 13 can use a wireless charger.
SpecOnePlus 13Pixel 3a
Wireless Charging15WNo
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 13 to Pixel 3a?

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

Accessories for OnePlus 13

Spigen

Spigen Ultra Hybrid for OnePlus 13

$15.99

View on Amazon

Ringke

Ringke Fusion-X MagSafe for OnePlus 13

$23.99

View on Amazon

Accessories for Pixel 3a

As an Amazon Associate, WillItSnap earns from qualifying purchases.

Frequently Asked Questions

Is OnePlus 13 bigger than Pixel 3a?

Yes, the OnePlus 13 is 11.6mm taller and 6.4mm wider. The OnePlus 13 weighs 213g vs 147g.

Are OnePlus 13 and Pixel 3a the same size?

No, the height differs by 11.6mm, width by 6.4mm, and thickness by 0.3mm.