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OnePlus 9 vs Galaxy S20 FE: Size & Dimensions Compared

The OnePlus 9 and Galaxy S20 FE are nearly the same size, differing by just 0.2mm in height and 0.3mm in width.

Visual Size Overlay

OnePlus 9Galaxy S20 FE
160mm159.8mm+0.2mm74.2mm74.5mm-0.3mm10mm
Height Δ
+0.2mm
Width Δ
-0.3mm
Thickness Δ
+0.3mm
Case CompatibilityPartial Fit
  • Thickness differs by 0.3mm — may affect fit
  • Old phone has alert slider — new phone does not
Screen ProtectorCompatible

Same screen size (6.5") with minimal width difference — should fit.

DimensionOnePlus 9Galaxy S20 FEDifference
Height160mm159.8mmGalaxy S20 FE -0.2mm (shorter)
Width74.2mm74.5mmGalaxy S20 FE +0.3mm (wider)
Thickness8.7mm8.4mmGalaxy S20 FE -0.3mm (thinner)
Weight192g190gGalaxy S20 FE -2.0g (lighter)
Screen6.55"6.5"Same

Visual Size Comparison

HeightOnePlus 9 +0.2mm
OnePlus 9
160mm
Galaxy S20 FE
159.8mm
WidthGalaxy S20 FE +0.3mm
OnePlus 9
74.2mm
Galaxy S20 FE
74.5mm
ThicknessOnePlus 9 +0.3mm
OnePlus 9
8.7mm
Galaxy S20 FE
8.4mm

Button & Port Layout

Which is bigger?

The OnePlus 9 and Galaxy S20 FE are essentially the same size.

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 9Galaxy S20 FE
Wireless Charging10W10W
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.

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Frequently Asked Questions

Is OnePlus 9 bigger than Galaxy S20 FE?

Yes, the OnePlus 9 is 0.2mm taller and 0.3mm narrower. The OnePlus 9 weighs 192g vs 190g.

Are OnePlus 9 and Galaxy S20 FE the same size?

Very close — they differ by only 0.2mm in height and 0.3mm in width.