No, your Pixel 4a 5G case won't fit the OnePlus Open
The Pixel 4a 5G (153.9×74mm) and OnePlus Open (153.4×73.3mm) differ too much for cases to be compatible.
Does a Pixel 4a 5G Case Fit OnePlus Open?
Last verified: March 2026
No, a Pixel 4a 5G case will not fit the OnePlus Open. The phones have different dimensions that make cases incompatible.
Your Pixel 4a 5G case will NOT fit the OnePlus Open. Here's why:
- •Camera module layout is different — cutout won't align
| Spec | Pixel 4a 5G | OnePlus Open | Diff |
|---|---|---|---|
| Height | 153.9mm | 153.4mm | Pixel 4a 5G +0.5mm |
| Width | 74mm | 73.3mm | Pixel 4a 5G +0.7mm |
| Thickness | 8.2mm | 11.7mm | OnePlus Open +3.5mm |
| Camera Layout | square-dual | circular-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 4a 5G case won't fit the OnePlus Open. Find the right case:
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Frequently Asked Questions
Are Pixel 4a 5G and OnePlus Open the same size?
Pixel 4a 5G measures 153.9×74×8.2mm while OnePlus Open measures 153.4×73.3×11.7mm. They are different sizes.
Can I use a Pixel 4a 5G screen protector on OnePlus Open?
Screen sizes are close (6.2" vs 6.31") but may not align perfectly.
What's different between Pixel 4a 5G and OnePlus Open dimensions?
The height differs by 0.5mm, the width by 0.7mm, and thickness by 3.5mm. The camera module layout is also different.
Do I need a new case for OnePlus Open?
Yes, you'll need a new case. The OnePlus Open has different dimensions than the Pixel 4a 5G, so cases are not interchangeable.
Will Pixel 4a 5G accessories work with OnePlus Open?
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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