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Galaxy S20 Ultra vs Galaxy Z Fold 3: Size & Dimensions Compared

The Galaxy S20 Ultra is the larger phone, measuring 8.7mm taller and 8.9mm wider.

Visual Size Overlay

Galaxy S20 UltraGalaxy Z Fold 3
166.9mm158.2mm+8.7mm76mm67.1mm+8.9mm10mm
Height Δ
+8.7mm
Width Δ
+8.9mm
Thickness Δ
-7.2mm
Case CompatibilityWon't Fit
  • Camera module layout is different — cutout won't align
Screen ProtectorNot Compatible

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

DimensionGalaxy S20 UltraGalaxy Z Fold 3Difference
Height166.9mm158.2mmGalaxy Z Fold 3 -8.7mm (shorter)
Width76mm67.1mmGalaxy Z Fold 3 -8.9mm (narrower)
Thickness8.8mm16mmGalaxy Z Fold 3 +7.2mm (thicker)
Weight220g271gGalaxy Z Fold 3 +51.0g (heavier)
Screen6.9"7.6"Galaxy Z Fold 3 +0.7" (larger)

Visual Size Comparison

HeightGalaxy S20 Ultra +8.7mm
Galaxy S20 Ultra
166.9mm
Galaxy Z Fold 3
158.2mm
WidthGalaxy S20 Ultra +8.9mm
Galaxy S20 Ultra
76mm
Galaxy Z Fold 3
67.1mm
ThicknessGalaxy Z Fold 3 +7.2mm
Galaxy S20 Ultra
8.8mm
Galaxy Z Fold 3
16mm

Button & Port Layout

Which is bigger?

The Galaxy S20 Ultra is the taller phone at 166.9mm (vs 158.2mm). It but is 51g lighter.

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.
SpecGalaxy S20 UltraGalaxy Z Fold 3
Wireless Charging10W15W
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 Galaxy S20 Ultra to Galaxy Z Fold 3?

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

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Frequently Asked Questions

Is Galaxy S20 Ultra bigger than Galaxy Z Fold 3?

Yes, the Galaxy S20 Ultra is 8.7mm taller and 8.9mm wider. The Galaxy S20 Ultra weighs 220g vs 271g.

Are Galaxy S20 Ultra and Galaxy Z Fold 3 the same size?

No, the height differs by 8.7mm, width by 8.9mm, and thickness by 7.2mm.