No, your Galaxy S25+ case won't fit the Galaxy S21+
The Galaxy S25+ (158.4×75.8mm) and Galaxy S21+ (161.5×75.6mm) differ too much for cases to be compatible.
Does a Galaxy S25+ Case Fit Galaxy S21+?
Last verified: March 2026
No, a Galaxy S25+ case will not fit the Galaxy S21+. The phones have different dimensions that make cases incompatible.
Your Galaxy S25+ case will NOT fit the Galaxy S21+. Here's why:
- •Height differs by 3.1mm — case won't fit
- •Thickness differs by 0.5mm — may affect fit
- •Camera bump size slightly different
| Spec | Galaxy S25+ | Galaxy S21+ | Diff |
|---|---|---|---|
| Height | 158.4mm | 161.5mm | Galaxy S21+ +3.1mm |
| Width | 75.8mm | 75.6mm | Galaxy S25+ +0.2mm |
| Thickness | 7.3mm | 7.8mm | Galaxy S21+ +0.5mm |
| Camera Layout | vertical-triple | vertical-triple | Same |
| Port | usb-c | usb-c | Same |
Your Galaxy S25+ case won't fit the Galaxy S21+. Find the right case:
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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 S25+
Qi2 only
15W max
Galaxy S21+
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 S25+ and Galaxy S21+ the same size?
Galaxy S25+ measures 158.4×75.8×7.3mm while Galaxy S21+ measures 161.5×75.6×7.8mm. They are different sizes.
Can I use a Galaxy S25+ screen protector on Galaxy S21+?
Same screen size (6.7") with minimal width difference — should fit.
What's different between Galaxy S25+ and Galaxy S21+ dimensions?
The height differs by 3.1mm, the width by 0.2mm, and thickness by 0.5mm.
Do I need a new case for Galaxy S21+?
Yes, you'll need a new case. The Galaxy S21+ has different dimensions than the Galaxy S25+, so cases are not interchangeable.
Will Galaxy S25+ accessories work with Galaxy S21+?
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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