No, your Galaxy S20 Ultra case won't fit the Galaxy S21 FE
The Galaxy S20 Ultra (166.9×76mm) and Galaxy S21 FE (155.7×74.5mm) differ too much for cases to be compatible.
Does a Galaxy S20 Ultra Case Fit Galaxy S21 FE?
Last verified: March 2026
No, a Galaxy S20 Ultra case will not fit the Galaxy S21 FE. The phones have different dimensions that make cases incompatible.
Your Galaxy S20 Ultra case will NOT fit the Galaxy S21 FE. Here's why:
- •Camera module layout is different — cutout won't align
| Spec | Galaxy S20 Ultra | Galaxy S21 FE | Diff |
|---|---|---|---|
| Height | 166.9mm | 155.7mm | Galaxy S20 Ultra +11.2mm |
| Width | 76mm | 74.5mm | Galaxy S20 Ultra +1.5mm |
| Thickness | 8.8mm | 7.9mm | Galaxy S20 Ultra +0.9mm |
| Camera Layout | rectangular-module | vertical-triple | Different |
| Port | usb-c | usb-c | Same |
Your Galaxy S20 Ultra case won't fit the Galaxy S21 FE. 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 S20 Ultra
Qi only
10W max
Galaxy S21 FE
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 S20 Ultra and Galaxy S21 FE the same size?
Galaxy S20 Ultra measures 166.9×76×8.8mm while Galaxy S21 FE measures 155.7×74.5×7.9mm. They are different sizes.
Can I use a Galaxy S20 Ultra screen protector on Galaxy S21 FE?
Edge types differ (curved vs flat) — screen protector won't adhere properly.
What's different between Galaxy S20 Ultra and Galaxy S21 FE dimensions?
The height differs by 11.2mm, the width by 1.5mm, and thickness by 0.9mm. The camera module layout is also different.
Do I need a new case for Galaxy S21 FE?
Yes, you'll need a new case. The Galaxy S21 FE has different dimensions than the Galaxy S20 Ultra, so cases are not interchangeable.
Will Galaxy S20 Ultra accessories work with Galaxy S21 FE?
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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