No, your Galaxy A55 5G case won't fit the Galaxy S21+
The Galaxy A55 5G (161.1×77.4mm) and Galaxy S21+ (161.5×75.6mm) differ too much for cases to be compatible.
Does a Galaxy A55 5G Case Fit Galaxy S21+?
Last verified: March 2026
No, a Galaxy A55 5G case will not fit the Galaxy S21+. The phones have different dimensions that make cases incompatible.
Your Galaxy A55 5G case will NOT fit the Galaxy S21+. Here's why:
- •Width differs by 1.8mm — case won't fit
- •Thickness differs by 0.4mm — may affect fit
- •Camera bump size differs significantly
- •Camera bump protrusion differs by 2.2mm — case lip may not protect camera
| Spec | Galaxy A55 5G | Galaxy S21+ | Diff |
|---|---|---|---|
| Height | 161.1mm | 161.5mm | Galaxy S21+ +0.4mm |
| Width | 77.4mm | 75.6mm | Galaxy A55 5G +1.8mm |
| Thickness | 8.2mm | 7.8mm | Galaxy A55 5G +0.4mm |
| Camera Layout | vertical-triple | vertical-triple | Same |
| Port | usb-c | usb-c | Same |
Your Galaxy A55 5G case won't fit the Galaxy S21+. Find the right case:
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Size Comparison
Wireless Charging & MagSafe
Only one phone supports wireless charging.
- The Galaxy A55 5G does not support wireless charging. Only the Galaxy S21+ can use a wireless charger.
Galaxy A55 5G
No wireless
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 A55 5G and Galaxy S21+ the same size?
Galaxy A55 5G measures 161.1×77.4×8.2mm while Galaxy S21+ measures 161.5×75.6×7.8mm. They are different sizes.
Can I use a Galaxy A55 5G screen protector on Galaxy S21+?
Screen sizes are close (6.6" vs 6.7") but may not align perfectly.
What's different between Galaxy A55 5G and Galaxy S21+ dimensions?
The height differs by 0.4mm, the width by 1.8mm, and thickness by 0.4mm.
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 A55 5G, so cases are not interchangeable.
Will Galaxy A55 5G accessories work with Galaxy S21+?
Chargers and cables are compatible since both phones use the same usb-c port. Cases and screen protectors depend on exact dimensions — check our compatibility results above.
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