No, your Galaxy S21 case won't fit the Galaxy S24+
The Galaxy S21 (151.7×71.2mm) and Galaxy S24+ (158.5×75.9mm) differ too much for cases to be compatible.
Does a Galaxy S21 Case Fit Galaxy S24+?
Last verified: March 2026
No, a Galaxy S21 case will not fit the Galaxy S24+. The phones have different dimensions that make cases incompatible.
Your Galaxy S21 case will NOT fit the Galaxy S24+. Here's why:
- •Height differs by 6.8mm — case won't fit
- •Width differs by 4.7mm — case won't fit
- •Thickness differs by 0.2mm — may affect fit
| Spec | Galaxy S21 | Galaxy S24+ | Diff |
|---|---|---|---|
| Height | 151.7mm | 158.5mm | Galaxy S24+ +6.8mm |
| Width | 71.2mm | 75.9mm | Galaxy S24+ +4.7mm |
| Thickness | 7.9mm | 7.7mm | Galaxy S21 +0.2mm |
| Camera Layout | vertical-triple | vertical-triple | Same |
| Port | usb-c | usb-c | Same |
Since your Galaxy S21 case won't work with the Galaxy S24+, here are the highest-rated cases that will:
OtterBox
OtterBox Commuter Series for Galaxy S24+
$39.95
OtterBox
OtterBox Defender Series for Galaxy S24+
$64.95
Caseology
Caseology Parallax for Galaxy S24+
$16.99
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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 S24+
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 S24+ the same size?
Galaxy S21 measures 151.7×71.2×7.9mm while Galaxy S24+ measures 158.5×75.9×7.7mm. They are different sizes.
Can I use a Galaxy S21 screen protector on Galaxy S24+?
Screen sizes differ (6.2" vs 6.7") — protector won't fit.
What's different between Galaxy S21 and Galaxy S24+ dimensions?
The height differs by 6.8mm, the width by 4.7mm, and thickness by 0.2mm.
Do I need a new case for Galaxy S24+?
Yes, you'll need a new case. The Galaxy S24+ has different dimensions than the Galaxy S21, so cases are not interchangeable.
Will Galaxy S21 accessories work with Galaxy S24+?
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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