No, your OnePlus 13 case won't fit the Galaxy S23 Ultra
The OnePlus 13 (162.9×76.5mm) and Galaxy S23 Ultra (163.4×78.1mm) differ too much for cases to be compatible.
Does a OnePlus 13 Case Fit Galaxy S23 Ultra?
Last verified: March 2026
No, a OnePlus 13 case will not fit the Galaxy S23 Ultra. The phones have different dimensions that make cases incompatible.
Your OnePlus 13 case will NOT fit the Galaxy S23 Ultra. Here's why:
- •Camera module layout is different — cutout won't align
| Spec | OnePlus 13 | Galaxy S23 Ultra | Diff |
|---|---|---|---|
| Height | 162.9mm | 163.4mm | Galaxy S23 Ultra +0.5mm |
| Width | 76.5mm | 78.1mm | Galaxy S23 Ultra +1.6mm |
| Thickness | 8.5mm | 8.9mm | Galaxy S23 Ultra +0.4mm |
| Camera Layout | circular-triple | vertical-quad | Different |
| Port | usb-c | usb-c | Same |
Button & Port Alignment
- •New phone has S Pen slot — old case has no opening for it
- •Old phone has alert slider — new phone does not
Since your OnePlus 13 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.
OnePlus 13
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 OnePlus 13 and Galaxy S23 Ultra the same size?
OnePlus 13 measures 162.9×76.5×8.5mm while Galaxy S23 Ultra measures 163.4×78.1×8.9mm. They are different sizes.
Can I use a OnePlus 13 screen protector on Galaxy S23 Ultra?
Edge types differ (flat vs curved) — screen protector won't adhere properly.
What's different between OnePlus 13 and Galaxy S23 Ultra dimensions?
The height differs by 0.5mm, the width by 1.6mm, and thickness by 0.4mm. The camera module layout is also different.
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 OnePlus 13, so cases are not interchangeable.
Will OnePlus 13 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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