No, your Pixel 3a case won't fit the OnePlus 13
The Pixel 3a (151.3×70.1mm) and OnePlus 13 (162.9×76.5mm) differ too much for cases to be compatible.
Does a Pixel 3a Case Fit OnePlus 13?
Last verified: March 2026
No, a Pixel 3a case will not fit the OnePlus 13. The phones have different dimensions that make cases incompatible.
Your Pixel 3a case will NOT fit the OnePlus 13. Here's why:
- •Camera module layout is different — cutout won't align
| Spec | Pixel 3a | OnePlus 13 | Diff |
|---|---|---|---|
| Height | 151.3mm | 162.9mm | OnePlus 13 +11.6mm |
| Width | 70.1mm | 76.5mm | OnePlus 13 +6.4mm |
| Thickness | 8.2mm | 8.5mm | OnePlus 13 +0.3mm |
| Camera Layout | single | circular-triple | Different |
| Port | usb-c | usb-c | Same |
Button & Port Alignment
- •New phone has alert slider — old case has no cutout for it
Since your Pixel 3a case won't work with the OnePlus 13, here are the highest-rated cases that will:
Ringke
Ringke Fusion-X MagSafe for OnePlus 13
$23.99
As an Amazon Associate, WillItSnap earns from qualifying purchases. This doesn't affect our compatibility data.
Get alerts when we add more phones
Size Comparison
Wireless Charging & MagSafe
Only one phone supports wireless charging.
- The Pixel 3a does not support wireless charging. Only the OnePlus 13 can use a wireless charger.
Pixel 3a
No wireless
OnePlus 13
Qi 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.
Related Guides
Related Compatibility Checks
Frequently Asked Questions
Are Pixel 3a and OnePlus 13 the same size?
Pixel 3a measures 151.3×70.1×8.2mm while OnePlus 13 measures 162.9×76.5×8.5mm. They are different sizes.
Can I use a Pixel 3a screen protector on OnePlus 13?
Screen sizes differ (5.6" vs 6.82") — protector won't fit.
What's different between Pixel 3a and OnePlus 13 dimensions?
The height differs by 11.6mm, the width by 6.4mm, and thickness by 0.3mm. The camera module layout is also different.
Do I need a new case for OnePlus 13?
Yes, you'll need a new case. The OnePlus 13 has different dimensions than the Pixel 3a, so cases are not interchangeable.
Will Pixel 3a accessories work with OnePlus 13?
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.
Want to check another phone?
← Back to the compatibility checker