Galaxy S25 FE vs Galaxy S21 Ultra: Size & Dimensions Compared
The Galaxy S21 Ultra is the larger phone, measuring 3.8mm shorter and 1.0mm wider.
| Dimension | Galaxy S25 FE | Galaxy S21 Ultra | Difference |
|---|---|---|---|
| Height | 161.3mm | 165.1mm | Galaxy S21 Ultra +3.8mm |
| Width | 76.6mm | 75.6mm | Galaxy S25 FE +1.0mm |
| Thickness | 7.4mm | 8.9mm | Galaxy S21 Ultra +1.5mm |
| Weight | 190g | 227g | Galaxy S21 Ultra +37.0g |
| Screen | 6.7" | 6.8" | Galaxy S21 Ultra +0.1" |
Visual Size Comparison
HeightGalaxy S21 Ultra +3.8mm
Galaxy S25 FE
161.3mm
Galaxy S21 Ultra
165.1mm
WidthGalaxy S25 FE +1.0mm
Galaxy S25 FE
76.6mm
Galaxy S21 Ultra
75.6mm
ThicknessGalaxy S21 Ultra +1.5mm
Galaxy S25 FE
7.4mm
Galaxy S21 Ultra
8.9mm
Which is bigger?
The Galaxy S21 Ultra is the taller phone at 165.1mm (vs 161.3mm). It is also 37g heavier.
Upgrading from Galaxy S25 FE to Galaxy S21 Ultra?
Different sizes mean your old case probably won't fit. You'll need a new one.
Accessories for Galaxy S25 FE
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Will a Galaxy S25 FE case fit Galaxy S21 Ultra? →Will a Galaxy S25 FE screen protector fit Galaxy S21 Ultra? →
Frequently Asked Questions
Is Galaxy S25 FE bigger than Galaxy S21 Ultra?
No, the Galaxy S21 Ultra is 3.8mm taller. The Galaxy S25 FE weighs 190g vs 227g.
Are Galaxy S25 FE and Galaxy S21 Ultra the same size?
No, the height differs by 3.8mm, width by 1.0mm, and thickness by 1.5mm.