No, your OnePlus 9 case won't fit the Galaxy S25+
The OnePlus 9 (160×74.2mm) and Galaxy S25+ (158.4×75.8mm) differ too much for cases to be compatible.
Does a OnePlus 9 Case Fit Galaxy S25+?
Last verified: March 2026
No, a OnePlus 9 case will not fit the Galaxy S25+. The phones have different dimensions that make cases incompatible.
Your OnePlus 9 case will NOT fit the Galaxy S25+. Here's why:
- •Height differs by 1.6mm — case won't fit
- •Width differs by 1.6mm — case won't fit
- •1.4mm thicker — case won't close properly
- •Camera bump size differs significantly
- •Camera bump protrusion differs by 2.2mm — case lip may not protect camera
- •Old phone has alert slider — new phone does not
| Spec | OnePlus 9 | Galaxy S25+ | Diff |
|---|---|---|---|
| Height | 160mm | 158.4mm | OnePlus 9 +1.6mm |
| Width | 74.2mm | 75.8mm | Galaxy S25+ +1.6mm |
| Thickness | 8.7mm | 7.3mm | OnePlus 9 +1.4mm |
| Camera Layout | vertical-triple | vertical-triple | Same |
| Port | usb-c | usb-c | Same |
Button & Port Alignment
- •Old phone has alert slider — new phone does not
Since your OnePlus 9 case won't work with the Galaxy S25+, here are the highest-rated cases that will:
Spigen
Spigen Ultra Hybrid for Galaxy S25+
$16.99
OtterBox
OtterBox Defender Series for Galaxy S25+
$64.95
TORRAS
TORRAS Guardian Shockproof for Galaxy S25+
$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 9
Qi only
10W max
Galaxy S25+
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.
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Frequently Asked Questions
Are OnePlus 9 and Galaxy S25+ the same size?
OnePlus 9 measures 160×74.2×8.7mm while Galaxy S25+ measures 158.4×75.8×7.3mm. They are different sizes.
Can I use a OnePlus 9 screen protector on Galaxy S25+?
Screen sizes differ (6.55" vs 6.7") — protector won't fit.
What's different between OnePlus 9 and Galaxy S25+ dimensions?
The height differs by 1.6mm, the width by 1.6mm, and thickness by 1.4mm.
Do I need a new case for Galaxy S25+?
Yes, you'll need a new case. The Galaxy S25+ has different dimensions than the OnePlus 9, so cases are not interchangeable.
Will OnePlus 9 accessories work with Galaxy S25+?
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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