No, your Galaxy S21 case won't fit the Galaxy S23
The Galaxy S21 (151.7×71.2mm) and Galaxy S23 (146.3×70.9mm) differ too much for cases to be compatible.
Does a Galaxy S21 Case Fit Galaxy S23?
Last verified: March 2026
No, a Galaxy S21 case will not fit the Galaxy S23. The phones have different dimensions that make cases incompatible.
Your Galaxy S21 case will NOT fit the Galaxy S23. Here's why:
- •Height differs by 5.4mm — case won't fit
- •Thickness differs by 0.3mm — may affect fit
- •Camera bump size slightly different
| Spec | Galaxy S21 | Galaxy S23 | Diff |
|---|---|---|---|
| Height | 151.7mm | 146.3mm | Galaxy S21 +5.4mm |
| Width | 71.2mm | 70.9mm | Galaxy S21 +0.3mm |
| Thickness | 7.9mm | 7.6mm | Galaxy S21 +0.3mm |
| Camera Layout | vertical-triple | vertical-triple | Same |
| Port | usb-c | usb-c | Same |
Since your Galaxy S21 case won't work with the Galaxy S23, here are the highest-rated cases that will:
Spigen
Spigen Liquid Air for Galaxy S23
$13.99
Caseology
Caseology Parallax for Galaxy S23
$16.99
Ringke
Ringke Fusion for Galaxy S23
$11.99
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Size Comparison
Wireless Charging & MagSafe
Wireless chargers work with both phones, but magnetic snap varies.
- Both devices support wireless charging. Standard Qi/Qi2 chargers work with either phone.
Galaxy S21
Qi only
15W max
Galaxy S23
Qi only
15W max
MagSafe cases are NOT cross-compatible between these devices — the case body is shaped to each phone, even though the internal magnet ring may be the same.
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Frequently Asked Questions
Are Galaxy S21 and Galaxy S23 the same size?
Galaxy S21 measures 151.7×71.2×7.9mm while Galaxy S23 measures 146.3×70.9×7.6mm. They are different sizes.
Can I use a Galaxy S21 screen protector on Galaxy S23?
Screen sizes are close (6.2" vs 6.1") but may not align perfectly.
What's different between Galaxy S21 and Galaxy S23 dimensions?
The height differs by 5.4mm, the width by 0.3mm, and thickness by 0.3mm.
Do I need a new case for Galaxy S23?
Yes, you'll need a new case. The Galaxy S23 has different dimensions than the Galaxy S21, so cases are not interchangeable.
Will Galaxy S21 accessories work with Galaxy S23?
Chargers and cables are compatible since both phones use the same usb-c port. Both support wireless charging, so wireless chargers work with either phone. Cases and screen protectors depend on exact dimensions — check our compatibility results above.
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