Skip to content

iPhone XS vs iPhone 8 Plus: Size & Dimensions Compared

The iPhone 8 Plus is the larger phone, measuring 14.8mm shorter and 7.2mm narrower.

Visual Size Overlay

iPhone XSiPhone 8 Plus
143.6mm158.4mm-14.8mm70.9mm78.1mm-7.2mm10mm
Height Δ
-14.8mm
Width Δ
-7.2mm
Thickness Δ
+0.2mm
Case CompatibilityWon't Fit
  • Camera module layout is different — cutout won't align
Screen ProtectorNot Compatible

Screen sizes differ (5.8" vs 5.5") — protector won't fit.

DimensioniPhone XSiPhone 8 PlusDifference
Height143.6mm158.4mmiPhone 8 Plus +14.8mm (taller)
Width70.9mm78.1mmiPhone 8 Plus +7.2mm (wider)
Thickness7.7mm7.5mmiPhone 8 Plus -0.2mm (thinner)
Weight177g202giPhone 8 Plus +25.0g (heavier)
Screen5.8"5.5"iPhone 8 Plus -0.3" (smaller)

Visual Size Comparison

HeightiPhone 8 Plus +14.8mm
iPhone XS
143.6mm
iPhone 8 Plus
158.4mm
WidthiPhone 8 Plus +7.2mm
iPhone XS
70.9mm
iPhone 8 Plus
78.1mm
ThicknessiPhone XS +0.2mm
iPhone XS
7.7mm
iPhone 8 Plus
7.5mm

Button & Port Layout

Which is bigger?

The iPhone 8 Plus is the taller phone at 158.4mm (vs 143.6mm). It is also 25g 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.
SpeciPhone XSiPhone 8 Plus
Wireless Charging7.5W7.5W
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 iPhone XS to iPhone 8 Plus?

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

As an Amazon Associate, WillItSnap earns from qualifying purchases.

Frequently Asked Questions

Is iPhone XS bigger than iPhone 8 Plus?

No, the iPhone 8 Plus is 14.8mm taller. The iPhone XS weighs 177g vs 202g.

Are iPhone XS and iPhone 8 Plus the same size?

No, the height differs by 14.8mm, width by 7.2mm, and thickness by 0.2mm.