Galaxy S21 Ultra vs Galaxy A51: Size & Dimensions Compared
The Galaxy S21 Ultra is the larger phone, measuring 6.6mm taller and 2.0mm wider.
| Dimension | Galaxy S21 Ultra | Galaxy A51 | Difference |
|---|---|---|---|
| Height | 165.1mm | 158.5mm | Galaxy S21 Ultra +6.6mm |
| Width | 75.6mm | 73.6mm | Galaxy S21 Ultra +2.0mm |
| Thickness | 8.9mm | 7.9mm | Galaxy S21 Ultra +1.0mm |
| Weight | 227g | 172g | Galaxy S21 Ultra +55.0g |
| Screen | 6.8" | 6.5" | Galaxy S21 Ultra +0.3" |
Visual Size Comparison
HeightGalaxy S21 Ultra +6.6mm
Galaxy S21 Ultra
165.1mm
Galaxy A51
158.5mm
WidthGalaxy S21 Ultra +2.0mm
Galaxy S21 Ultra
75.6mm
Galaxy A51
73.6mm
ThicknessGalaxy S21 Ultra +1.0mm
Galaxy S21 Ultra
8.9mm
Galaxy A51
7.9mm
Which is bigger?
The Galaxy S21 Ultra is the taller phone at 165.1mm (vs 158.5mm). It is also 55g heavier.
Upgrading from Galaxy S21 Ultra to Galaxy A51?
Different sizes mean your old case probably won't fit. You'll need a new one.
Accessories for Galaxy S21 Ultra
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Will a Galaxy S21 Ultra case fit Galaxy A51? →Will a Galaxy S21 Ultra screen protector fit Galaxy A51? →
Frequently Asked Questions
Is Galaxy S21 Ultra bigger than Galaxy A51?
Yes, the Galaxy S21 Ultra is 6.6mm taller and 2.0mm wider. The Galaxy S21 Ultra weighs 227g vs 172g.
Are Galaxy S21 Ultra and Galaxy A51 the same size?
No, the height differs by 6.6mm, width by 2.0mm, and thickness by 1.0mm.