No, your Galaxy S24 Ultra case won't fit the Galaxy S23 Ultra
The Galaxy S24 Ultra (162.3×79mm) and Galaxy S23 Ultra (163.4×78.1mm) differ too much for cases to be compatible.
Does a Galaxy S24 Ultra Case Fit Galaxy S23 Ultra?
Last verified: March 2026
No, a Galaxy S24 Ultra case will not fit the Galaxy S23 Ultra. The phones have different dimensions that make cases incompatible.
Your Galaxy S24 Ultra case will NOT fit the Galaxy S23 Ultra. Here's why:
- •Height differs by 1.1mm — case won't fit
- •Width differs by 0.9mm — case won't fit
- •Thickness differs by 0.3mm — may affect fit
- •Different edge profiles (flat vs curved) — case shell shape won't match
- •Corner shape differs — case won't seat properly
| Spec | Galaxy S24 Ultra | Galaxy S23 Ultra | Diff |
|---|---|---|---|
| Height | 162.3mm | 163.4mm | Galaxy S23 Ultra +1.1mm |
| Width | 79mm | 78.1mm | Galaxy S24 Ultra +0.9mm |
| Thickness | 8.6mm | 8.9mm | Galaxy S23 Ultra +0.3mm |
| Camera Layout | vertical-quad | vertical-quad | Same |
| Port | usb-c | usb-c | Same |
Since your Galaxy S24 Ultra case won't work with the Galaxy S23 Ultra, here are the highest-rated cases that will:
OtterBox
OtterBox Defender Series for Galaxy S23 Ultra
$64.95
TORRAS
TORRAS MarsClimber for Galaxy S23 Ultra
$19.99
Caseology
Caseology Nano Pop for Galaxy S23 Ultra
$15.99
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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 S24 Ultra
Qi only
15W max
Galaxy S23 Ultra
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 S24 Ultra and Galaxy S23 Ultra the same size?
Galaxy S24 Ultra measures 162.3×79×8.6mm while Galaxy S23 Ultra measures 163.4×78.1×8.9mm. They are different sizes.
Can I use a Galaxy S24 Ultra screen protector on Galaxy S23 Ultra?
Edge types differ (flat vs curved) — screen protector won't adhere properly.
What's different between Galaxy S24 Ultra and Galaxy S23 Ultra dimensions?
The height differs by 1.1mm, the width by 0.9mm, and thickness by 0.3mm.
Do I need a new case for Galaxy S23 Ultra?
Yes, you'll need a new case. The Galaxy S23 Ultra has different dimensions than the Galaxy S24 Ultra, so cases are not interchangeable.
Will Galaxy S24 Ultra accessories work with Galaxy S23 Ultra?
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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