Galaxy S21 vs Galaxy S20: Size & Dimensions Compared

The Galaxy S20 is the larger phone, measuring 0.0mm shorter and 2.1mm wider.

DimensionGalaxy S21Galaxy S20Difference
Height151.7mm151.7mmSame
Width71.2mm69.1mmGalaxy S21 +2.1mm
Thickness7.9mm7.9mmSame
Weight169g163gGalaxy S21 +6.0g
Screen6.2"6.2"Same

Visual Size Comparison

HeightSame
Galaxy S21
151.7mm
Galaxy S20
151.7mm
WidthGalaxy S21 +2.1mm
Galaxy S21
71.2mm
Galaxy S20
69.1mm
ThicknessSame
Galaxy S21
7.9mm
Galaxy S20
7.9mm

Which is bigger?

The Galaxy S21 is the taller phone at 151.7mm (vs 151.7mm). It is also 6g heavier.

Upgrading from Galaxy S21 to Galaxy S20?

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 S21 bigger than Galaxy S20?

They are the same height, but differ by 2.1mm in width. The Galaxy S21 weighs 169g vs 163g.

Are Galaxy S21 and Galaxy S20 the same size?

No, the height differs by 0.0mm, width by 2.1mm, and thickness by 0.0mm.