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OnePlus 13 vs iPhone 8 Plus: Size & Dimensions Compared

The OnePlus 13 is the larger phone, measuring 4.5mm taller and 1.6mm narrower.

Visual Size Overlay

OnePlus 13iPhone 8 Plus
162.9mm158.4mm+4.5mm76.5mm78.1mm-1.6mm10mm
Height Δ
+4.5mm
Width Δ
-1.6mm
Thickness Δ
+1.0mm
Case CompatibilityWon't Fit
  • Camera module layout is different — cutout won't align
Screen ProtectorNot Compatible

Screen sizes differ (6.82" vs 5.5") — protector won't fit.

DimensionOnePlus 13iPhone 8 PlusDifference
Height162.9mm158.4mmiPhone 8 Plus -4.5mm (shorter)
Width76.5mm78.1mmiPhone 8 Plus +1.6mm (wider)
Thickness8.5mm7.5mmiPhone 8 Plus -1.0mm (thinner)
Weight213g202giPhone 8 Plus -11.0g (lighter)
Screen6.82"5.5"iPhone 8 Plus -1.3" (smaller)

Visual Size Comparison

HeightOnePlus 13 +4.5mm
OnePlus 13
162.9mm
iPhone 8 Plus
158.4mm
WidthiPhone 8 Plus +1.6mm
OnePlus 13
76.5mm
iPhone 8 Plus
78.1mm
ThicknessOnePlus 13 +1.0mm
OnePlus 13
8.5mm
iPhone 8 Plus
7.5mm

Button & Port Layout

Which is bigger?

The OnePlus 13 is the taller phone at 162.9mm (vs 158.4mm). It is also 11g 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.
SpecOnePlus 13iPhone 8 Plus
Wireless Charging15W7.5W
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 OnePlus 13 to iPhone 8 Plus?

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 iPhone 8 Plus

As an Amazon Associate, WillItSnap earns from qualifying purchases.

Frequently Asked Questions

Is OnePlus 13 bigger than iPhone 8 Plus?

Yes, the OnePlus 13 is 4.5mm taller and 1.6mm narrower. The OnePlus 13 weighs 213g vs 202g.

Are OnePlus 13 and iPhone 8 Plus the same size?

No, the height differs by 4.5mm, width by 1.6mm, and thickness by 1.0mm.