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iPhone X vs iPhone 17: Size & Dimensions Compared

The iPhone 17 is the larger phone, measuring 6.0mm shorter and 0.6mm narrower.

Visual Size Overlay

iPhone XiPhone 17
143.6mm149.6mm-6.0mm70.9mm71.5mm-0.6mm10mm
Height Δ
-6.0mm
Width Δ
-0.6mm
Thickness Δ
-0.3mm
Case CompatibilityWon't Fit
  • Height differs by 6.0mm — case won't fit
  • Width differs by 0.6mm — case won't fit
  • Thickness differs by 0.3mm — may affect fit
Screen ProtectorNot Compatible

Edge types differ (rounded vs curved) — screen protector won't adhere properly.

DimensioniPhone XiPhone 17Difference
Height143.6mm149.6mmiPhone 17 +6.0mm (taller)
Width70.9mm71.5mmiPhone 17 +0.6mm (wider)
Thickness7.7mm7.95mmiPhone 17 +0.3mm (thicker)
Weight174g177giPhone 17 +3.0g (heavier)
Screen5.8"6.3"iPhone 17 +0.5" (larger)

Visual Size Comparison

HeightiPhone 17 +6.0mm
iPhone X
143.6mm
iPhone 17
149.6mm
WidthiPhone 17 +0.6mm
iPhone X
70.9mm
iPhone 17
71.5mm
ThicknessiPhone 17 +0.3mm
iPhone X
7.7mm
iPhone 17
7.95mm

Button & Port Layout

Which is bigger?

The iPhone 17 is the taller phone at 149.6mm (vs 143.6mm). It is also 3g heavier.

Wireless Charging & MagSafe Compatibility

Wireless chargers work with both phones, but magnetic snap varies.

  • Your MagSafe charger will charge the iPhone X via Qi, but it won't magnetically snap on.
  • Only the iPhone 17 has built-in magnets for MagSafe accessories. The iPhone X needs a magnetic case or ring adapter.
SpeciPhone XiPhone 17
Wireless Charging7.5W25W
Qi VersionQiQi2
MagSafeNoGen 2
Built-in MagnetsNoYes
Magnet Ringunknownclosed circle

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 X to iPhone 17?

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

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Frequently Asked Questions

Is iPhone X bigger than iPhone 17?

No, the iPhone 17 is 6.0mm taller. The iPhone X weighs 174g vs 177g.

Are iPhone X and iPhone 17 the same size?

No, the height differs by 6.0mm, width by 0.6mm, and thickness by 0.3mm.