No, your OnePlus Open case won't fit the Pixel 9
The OnePlus Open (153.4×73.3mm) and Pixel 9 (152.8×72mm) differ too much for cases to be compatible.
Does a OnePlus Open Case Fit Pixel 9?
Last verified: March 2026
No, a OnePlus Open case will not fit the Pixel 9. The phones have different dimensions that make cases incompatible.
Your OnePlus Open case will NOT fit the Pixel 9. Here's why:
- •Camera module layout is different — cutout won't align
| Spec | OnePlus Open | Pixel 9 | Diff |
|---|---|---|---|
| Height | 153.4mm | 152.8mm | OnePlus Open +0.6mm |
| Width | 73.3mm | 72mm | OnePlus Open +1.3mm |
| Thickness | 11.7mm | 8.5mm | OnePlus Open +3.2mm |
| Camera Layout | circular-triple | island-dual | Different |
| Port | usb-c | usb-c | Same |
Button & Port Alignment
- •Old phone has alert slider — new phone does not
Since your OnePlus Open case won't work with the Pixel 9, here are the highest-rated cases that will:
Spigen
Spigen Ultra Hybrid for Pixel 9
$15.99
OtterBox
OtterBox Defender Series for Pixel 9
$64.95
TORRAS
TORRAS Shockproof for Pixel 9
$15.99
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Size Comparison
Wireless Charging & MagSafe
Only one phone supports wireless charging.
- The OnePlus Open does not support wireless charging. Only the Pixel 9 can use a wireless charger.
- Only the Pixel 9 has built-in magnets for MagSafe accessories. The OnePlus Open needs a magnetic case or ring adapter.
OnePlus Open
No wireless
Pixel 9
Qi2 (built-in magnets)
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 Open and Pixel 9 the same size?
OnePlus Open measures 153.4×73.3×11.7mm while Pixel 9 measures 152.8×72×8.5mm. They are different sizes.
Can I use a OnePlus Open screen protector on Pixel 9?
Same screen size (6.3") but body width differs by 1.3mm — verify bezel alignment before buying.
What's different between OnePlus Open and Pixel 9 dimensions?
The height differs by 0.6mm, the width by 1.3mm, and thickness by 3.2mm. The camera module layout is also different.
Do I need a new case for Pixel 9?
Yes, you'll need a new case. The Pixel 9 has different dimensions than the OnePlus Open, so cases are not interchangeable.
Will OnePlus Open accessories work with Pixel 9?
Chargers and cables are compatible since both phones use the same usb-c port. Cases and screen protectors depend on exact dimensions — check our compatibility results above.
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