Galaxy S25 Edge vs Galaxy S21 Ultra: Size & Dimensions Compared
The Galaxy S21 Ultra is the larger phone, measuring 6.9mm shorter and 0.0mm narrower.
| Dimension | Galaxy S25 Edge | Galaxy S21 Ultra | Difference |
|---|---|---|---|
| Height | 158.2mm | 165.1mm | Galaxy S21 Ultra +6.9mm |
| Width | 75.6mm | 75.6mm | Same |
| Thickness | 5.8mm | 8.9mm | Galaxy S21 Ultra +3.1mm |
| Weight | 163g | 227g | Galaxy S21 Ultra +64.0g |
| Screen | 6.7" | 6.8" | Galaxy S21 Ultra +0.1" |
Visual Size Comparison
HeightGalaxy S21 Ultra +6.9mm
Galaxy S25 Edge
158.2mm
Galaxy S21 Ultra
165.1mm
WidthSame
Galaxy S25 Edge
75.6mm
Galaxy S21 Ultra
75.6mm
ThicknessGalaxy S21 Ultra +3.1mm
Galaxy S25 Edge
5.8mm
Galaxy S21 Ultra
8.9mm
Which is bigger?
The Galaxy S21 Ultra is the taller phone at 165.1mm (vs 158.2mm). It is also 64g heavier.
Upgrading from Galaxy S25 Edge to Galaxy S21 Ultra?
Different sizes mean your old case probably won't fit. You'll need a new one.
Accessories for Galaxy S25 Edge
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Will a Galaxy S25 Edge case fit Galaxy S21 Ultra? →Will a Galaxy S25 Edge screen protector fit Galaxy S21 Ultra? →
Frequently Asked Questions
Is Galaxy S25 Edge bigger than Galaxy S21 Ultra?
No, the Galaxy S21 Ultra is 6.9mm taller. The Galaxy S25 Edge weighs 163g vs 227g.
Are Galaxy S25 Edge and Galaxy S21 Ultra the same size?
No, the height differs by 6.9mm, width by 0.0mm, and thickness by 3.1mm.