No, your Pixel 9a case won't fit the Galaxy S25 Ultra
The Pixel 9a (154.7×73.3mm) and Galaxy S25 Ultra (162.8×77.6mm) differ too much for cases to be compatible.
Does a Pixel 9a Case Fit Galaxy S25 Ultra?
Last verified: March 2026
No, a Pixel 9a case will not fit the Galaxy S25 Ultra. The phones have different dimensions that make cases incompatible.
Your Pixel 9a case will NOT fit the Galaxy S25 Ultra. Here's why:
- •Camera module layout is different — cutout won't align
| Spec | Pixel 9a | Galaxy S25 Ultra | Diff |
|---|---|---|---|
| Height | 154.7mm | 162.8mm | Galaxy S25 Ultra +8.1mm |
| Width | 73.3mm | 77.6mm | Galaxy S25 Ultra +4.3mm |
| Thickness | 8.9mm | 8.2mm | Pixel 9a +0.7mm |
| Camera Layout | island-dual | vertical-quad | Different |
| Port | usb-c | usb-c | Same |
Button & Port Alignment
- •New phone has S Pen slot — old case has no opening for it
Since your Pixel 9a case won't work with the Galaxy S25 Ultra, here are the highest-rated cases that will:
Samsung
Samsung Silicone Case for Galaxy S25 Ultra
$39.99
OtterBox
OtterBox Symmetry for Galaxy S25 Ultra
$49.95
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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 9a
Qi only
15W max
Galaxy S25 Ultra
Qi2 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.
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Frequently Asked Questions
Are Pixel 9a and Galaxy S25 Ultra the same size?
Pixel 9a measures 154.7×73.3×8.9mm while Galaxy S25 Ultra measures 162.8×77.6×8.2mm. They are different sizes.
Can I use a Pixel 9a screen protector on Galaxy S25 Ultra?
Screen sizes differ (6.3" vs 6.9") — protector won't fit.
What's different between Pixel 9a and Galaxy S25 Ultra dimensions?
The height differs by 8.1mm, the width by 4.3mm, and thickness by 0.7mm. The camera module layout is also different.
Do I need a new case for Galaxy S25 Ultra?
Yes, you'll need a new case. The Galaxy S25 Ultra has different dimensions than the Pixel 9a, so cases are not interchangeable.
Will Pixel 9a accessories work with Galaxy S25 Ultra?
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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