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Pixel 4 XL vs OnePlus 9: Size & Dimensions Compared

The Pixel 4 XL is the larger phone, measuring 0.4mm taller and 0.9mm wider.

Visual Size Overlay

Pixel 4 XLOnePlus 9
160.4mm160mm+0.4mm75.1mm74.2mm+0.9mm10mm
Height Δ
+0.4mm
Width Δ
+0.9mm
Thickness Δ
-0.5mm
Case CompatibilityWon't Fit
  • Camera module layout is different — cutout won't align
Screen ProtectorNot Compatible

Screen sizes differ (6.3" vs 6.55") — protector won't fit.

DimensionPixel 4 XLOnePlus 9Difference
Height160.4mm160mmOnePlus 9 -0.4mm (shorter)
Width75.1mm74.2mmOnePlus 9 -0.9mm (narrower)
Thickness8.2mm8.7mmOnePlus 9 +0.5mm (thicker)
Weight193g192gOnePlus 9 -1.0g (lighter)
Screen6.3"6.55"OnePlus 9 +0.3" (larger)

Visual Size Comparison

HeightPixel 4 XL +0.4mm
Pixel 4 XL
160.4mm
OnePlus 9
160mm
WidthPixel 4 XL +0.9mm
Pixel 4 XL
75.1mm
OnePlus 9
74.2mm
ThicknessOnePlus 9 +0.5mm
Pixel 4 XL
8.2mm
OnePlus 9
8.7mm

Button & Port Layout

Which is bigger?

The Pixel 4 XL is the taller phone at 160.4mm (vs 160mm). It is also 1g 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 4 XLOnePlus 9
Wireless Charging12W10W
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 4 XL to OnePlus 9?

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 4 XL bigger than OnePlus 9?

Yes, the Pixel 4 XL is 0.4mm taller and 0.9mm wider. The Pixel 4 XL weighs 193g vs 192g.

Are Pixel 4 XL and OnePlus 9 the same size?

No, the height differs by 0.4mm, width by 0.9mm, and thickness by 0.5mm.