No, your Galaxy S25+ case won't fit the OnePlus 9
The Galaxy S25+ (158.4×75.8mm) and OnePlus 9 (160×74.2mm) differ too much for cases to be compatible.
Does a Galaxy S25+ Case Fit OnePlus 9?
Last verified: March 2026
No, a Galaxy S25+ case will not fit the OnePlus 9. The phones have different dimensions that make cases incompatible.
Your Galaxy S25+ case will NOT fit the OnePlus 9. 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
- •New phone has alert slider — old case has no cutout for it
| Spec | Galaxy S25+ | OnePlus 9 | Diff |
|---|---|---|---|
| Height | 158.4mm | 160mm | OnePlus 9 +1.6mm |
| Width | 75.8mm | 74.2mm | Galaxy S25+ +1.6mm |
| Thickness | 7.3mm | 8.7mm | OnePlus 9 +1.4mm |
| Camera Layout | vertical-triple | vertical-triple | Same |
| Port | usb-c | usb-c | Same |
Button & Port Alignment
- •New phone has alert slider — old case has no cutout for it
Your Galaxy S25+ case won't fit the OnePlus 9. 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 S25+
Qi2 only
15W max
OnePlus 9
Qi only
10W 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 S25+ and OnePlus 9 the same size?
Galaxy S25+ measures 158.4×75.8×7.3mm while OnePlus 9 measures 160×74.2×8.7mm. They are different sizes.
Can I use a Galaxy S25+ screen protector on OnePlus 9?
Screen sizes differ (6.7" vs 6.55") — protector won't fit.
What's different between Galaxy S25+ and OnePlus 9 dimensions?
The height differs by 1.6mm, the width by 1.6mm, and thickness by 1.4mm.
Do I need a new case for OnePlus 9?
Yes, you'll need a new case. The OnePlus 9 has different dimensions than the Galaxy S25+, so cases are not interchangeable.
Will Galaxy S25+ accessories work with OnePlus 9?
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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