Galaxy S21 vs Galaxy S23 Ultra: Size & Dimensions Compared
The Galaxy S23 Ultra is the larger phone, measuring 11.7mm shorter and 6.9mm narrower.
| Dimension | Galaxy S21 | Galaxy S23 Ultra | Difference |
|---|---|---|---|
| Height | 151.7mm | 163.4mm | Galaxy S23 Ultra +11.7mm |
| Width | 71.2mm | 78.1mm | Galaxy S23 Ultra +6.9mm |
| Thickness | 7.9mm | 8.9mm | Galaxy S23 Ultra +1.0mm |
| Weight | 169g | 234g | Galaxy S23 Ultra +65.0g |
| Screen | 6.2" | 6.8" | Galaxy S23 Ultra +0.6" |
Visual Size Comparison
HeightGalaxy S23 Ultra +11.7mm
Galaxy S21
151.7mm
Galaxy S23 Ultra
163.4mm
WidthGalaxy S23 Ultra +6.9mm
Galaxy S21
71.2mm
Galaxy S23 Ultra
78.1mm
ThicknessGalaxy S23 Ultra +1.0mm
Galaxy S21
7.9mm
Galaxy S23 Ultra
8.9mm
Which is bigger?
The Galaxy S23 Ultra is the taller phone at 163.4mm (vs 151.7mm). It is also 65g heavier.
Upgrading from Galaxy S21 to Galaxy S23 Ultra?
Different sizes mean your old case probably won't fit. You'll need a new one.
Accessories for Galaxy S21
Accessories for Galaxy S23 Ultra
Spigen
Spigen Tough Armor for Galaxy S23 Ultra
$17.99
OtterBox
OtterBox Defender Series for Galaxy S23 Ultra
$64.95
TORRAS
TORRAS MarsClimber for Galaxy S23 Ultra
$19.99
As an Amazon Associate, WillItSnap earns from qualifying purchases.
Will a Galaxy S21 case fit Galaxy S23 Ultra? →Will a Galaxy S21 screen protector fit Galaxy S23 Ultra? →
Frequently Asked Questions
Is Galaxy S21 bigger than Galaxy S23 Ultra?
No, the Galaxy S23 Ultra is 11.7mm taller. The Galaxy S21 weighs 169g vs 234g.
Are Galaxy S21 and Galaxy S23 Ultra the same size?
No, the height differs by 11.7mm, width by 6.9mm, and thickness by 1.0mm.