No, your Pixel 4 XL case won't fit the OnePlus 9
The Pixel 4 XL (160.4×75.1mm) and OnePlus 9 (160×74.2mm) differ too much for cases to be compatible.
Does a Pixel 4 XL Case Fit OnePlus 9?
Last verified: March 2026
No, a Pixel 4 XL case will not fit the OnePlus 9. The phones have different dimensions that make cases incompatible.
Your Pixel 4 XL case will NOT fit the OnePlus 9. Here's why:
- •Camera module layout is different — cutout won't align
| Spec | Pixel 4 XL | OnePlus 9 | Diff |
|---|---|---|---|
| Height | 160.4mm | 160mm | Pixel 4 XL +0.4mm |
| Width | 75.1mm | 74.2mm | Pixel 4 XL +0.9mm |
| Thickness | 8.2mm | 8.7mm | OnePlus 9 +0.5mm |
| Camera Layout | square-dual | vertical-triple | Different |
| Port | usb-c | usb-c | Same |
Button & Port Alignment
- •New phone has alert slider — old case has no cutout for it
Your Pixel 4 XL 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.
Pixel 4 XL
Qi only
12W 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 Pixel 4 XL and OnePlus 9 the same size?
Pixel 4 XL measures 160.4×75.1×8.2mm while OnePlus 9 measures 160×74.2×8.7mm. They are different sizes.
Can I use a Pixel 4 XL screen protector on OnePlus 9?
Screen sizes differ (6.3" vs 6.55") — protector won't fit.
What's different between Pixel 4 XL and OnePlus 9 dimensions?
The height differs by 0.4mm, the width by 0.9mm, and thickness by 0.5mm. The camera module layout is also different.
Do I need a new case for OnePlus 9?
Yes, you'll need a new case. The OnePlus 9 has different dimensions than the Pixel 4 XL, so cases are not interchangeable.
Will Pixel 4 XL 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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