Galaxy S25 vs Galaxy S20 Ultra: Size & Dimensions Compared

The Galaxy S20 Ultra is the larger phone, measuring 20.0mm shorter and 5.5mm narrower.

DimensionGalaxy S25Galaxy S20 UltraDifference
Height146.9mm166.9mmGalaxy S20 Ultra +20.0mm
Width70.5mm76mmGalaxy S20 Ultra +5.5mm
Thickness7.2mm8.8mmGalaxy S20 Ultra +1.6mm
Weight162g220gGalaxy S20 Ultra +58.0g
Screen6.2"6.9"Galaxy S20 Ultra +0.7"

Visual Size Comparison

HeightGalaxy S20 Ultra +20.0mm
Galaxy S25
146.9mm
Galaxy S20 Ultra
166.9mm
WidthGalaxy S20 Ultra +5.5mm
Galaxy S25
70.5mm
Galaxy S20 Ultra
76mm
ThicknessGalaxy S20 Ultra +1.6mm
Galaxy S25
7.2mm
Galaxy S20 Ultra
8.8mm

Which is bigger?

The Galaxy S20 Ultra is the taller phone at 166.9mm (vs 146.9mm). It is also 58g heavier.

Upgrading from Galaxy S25 to Galaxy S20 Ultra?

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

Accessories for Galaxy S25

Spigen

Spigen Liquid Air for Galaxy S25

$14.99

View on Amazon →

Samsung

Samsung Galaxy S25 Silicone Case

$29.99

View on Amazon →

Accessories for Galaxy S20 Ultra

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Frequently Asked Questions

Is Galaxy S25 bigger than Galaxy S20 Ultra?

No, the Galaxy S20 Ultra is 20.0mm taller. The Galaxy S25 weighs 162g vs 220g.

Are Galaxy S25 and Galaxy S20 Ultra the same size?

No, the height differs by 20.0mm, width by 5.5mm, and thickness by 1.6mm.