No, your Galaxy S23 Ultra case won't fit the Galaxy S25 Ultra
The Galaxy S23 Ultra (163.4×78.1mm) and Galaxy S25 Ultra (162.8×77.6mm) differ too much for cases to be compatible.
Does a Galaxy S23 Ultra Case Fit Galaxy S25 Ultra?
Last verified: March 2026
No, a Galaxy S23 Ultra case will not fit the Galaxy S25 Ultra. The phones have different dimensions that make cases incompatible.
Your Galaxy S23 Ultra case will NOT fit the Galaxy S25 Ultra. Here's why:
- •Height differs by 0.6mm — case may be tight or loose
- •Width differs by 0.5mm — slight mismatch
- •0.7mm thicker — case won't close properly
- •Different edge profiles (curved vs flat) — case shell shape won't match
- •Corner shape differs — case won't seat properly
| Spec | Galaxy S23 Ultra | Galaxy S25 Ultra | Diff |
|---|---|---|---|
| Height | 163.4mm | 162.8mm | Galaxy S23 Ultra +0.6mm |
| Width | 78.1mm | 77.6mm | Galaxy S23 Ultra +0.5mm |
| Thickness | 8.9mm | 8.2mm | Galaxy S23 Ultra +0.7mm |
| Camera Layout | vertical-quad | vertical-quad | Same |
| Port | usb-c | usb-c | Same |
Since your Galaxy S23 Ultra case won't work with the Galaxy S25 Ultra, here are the highest-rated cases that will:
Samsung
Samsung Silicone Case for Galaxy S25 Ultra
$39.99
OtterBox
OtterBox Symmetry for Galaxy S25 Ultra
$49.95
As an Amazon Associate, WillItSnap earns from qualifying purchases. This doesn't affect our compatibility data.
Get alerts when we add more phones
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 S23 Ultra
Qi only
15W max
Galaxy S25 Ultra
Qi2 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.
Related Guides
Related Compatibility Checks
Frequently Asked Questions
Are Galaxy S23 Ultra and Galaxy S25 Ultra the same size?
Galaxy S23 Ultra measures 163.4×78.1×8.9mm while Galaxy S25 Ultra measures 162.8×77.6×8.2mm. They are different sizes.
Can I use a Galaxy S23 Ultra screen protector on Galaxy S25 Ultra?
Edge types differ (curved vs flat) — screen protector won't adhere properly.
What's different between Galaxy S23 Ultra and Galaxy S25 Ultra dimensions?
The height differs by 0.6mm, the width by 0.5mm, and thickness by 0.7mm.
Do I need a new case for Galaxy S25 Ultra?
Yes, you'll need a new case. The Galaxy S25 Ultra has different dimensions than the Galaxy S23 Ultra, so cases are not interchangeable.
Will Galaxy S23 Ultra accessories work with Galaxy S25 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.
Want to check another phone?
← Back to the compatibility checker