No, your Galaxy S21 FE case won't fit the Galaxy A51
The Galaxy S21 FE (155.7×74.5mm) and Galaxy A51 (158.5×73.6mm) differ too much for cases to be compatible.
Does a Galaxy S21 FE Case Fit Galaxy A51?
Last verified: March 2026
No, a Galaxy S21 FE case will not fit the Galaxy A51. The phones have different dimensions that make cases incompatible.
Your Galaxy S21 FE case will NOT fit the Galaxy A51. Here's why:
- •Camera module layout is different — cutout won't align
| Spec | Galaxy S21 FE | Galaxy A51 | Diff |
|---|---|---|---|
| Height | 155.7mm | 158.5mm | Galaxy A51 +2.8mm |
| Width | 74.5mm | 73.6mm | Galaxy S21 FE +0.9mm |
| Thickness | 7.9mm | 7.9mm | Same |
| Camera Layout | vertical-triple | vertical-quad | Different |
| Port | usb-c | usb-c | Same |
Your Galaxy S21 FE case won't fit the Galaxy A51. Find the right case:
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Size Comparison
Wireless Charging & MagSafe
Only one phone supports wireless charging.
- The Galaxy A51 does not support wireless charging. Only the Galaxy S21 FE can use a wireless charger.
Galaxy S21 FE
Qi only
15W max
Galaxy A51
No wireless
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 FE and Galaxy A51 the same size?
Galaxy S21 FE measures 155.7×74.5×7.9mm while Galaxy A51 measures 158.5×73.6×7.9mm. They are different sizes.
Can I use a Galaxy S21 FE screen protector on Galaxy A51?
Same screen size (6.5") but body width differs by 0.9mm — verify bezel alignment before buying.
What's different between Galaxy S21 FE and Galaxy A51 dimensions?
The height differs by 2.8mm, the width by 0.9mm, and thickness by 0.0mm. The camera module layout is also different.
Do I need a new case for Galaxy A51?
Yes, you'll need a new case. The Galaxy A51 has different dimensions than the Galaxy S21 FE, so cases are not interchangeable.
Will Galaxy S21 FE accessories work with Galaxy A51?
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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