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No, your Galaxy S21 Ultra case won't fit the Pixel 9a

The Galaxy S21 Ultra (165.1×75.6mm) and Pixel 9a (154.7×73.3mm) differ too much for cases to be compatible.

Does a Galaxy S21 Ultra Case Fit Pixel 9a?

Q: What's different between Galaxy S21 Ultra and Pixel 9a dimensions?

The Galaxy S21 Ultra is 165.1mm tall and 75.6mm wide, while the Pixel 9a is 154.7mm tall and 73.3mm wide. Camera module layout is different — cutout won't align

Last verified: March 2026

No, a Galaxy S21 Ultra case will not fit the Pixel 9a. The phones have different dimensions that make cases incompatible.

0Won't Fit

Your Galaxy S21 Ultra case will NOT fit the Pixel 9a. Here's why:

•Camera module layout is different — cutout won't align

Spec	Galaxy S21 Ultra	Pixel 9a	Diff
Height	165.1mm	154.7mm	Galaxy S21 Ultra +10.4mm
Width	75.6mm	73.3mm	Galaxy S21 Ultra +2.3mm
Thickness	8.9mm	8.9mm	Same
Camera Layout	vertical-quad	island-dual	Different
Port	usb-c	usb-c	Same

⭐Based on Amazon best-seller rankings and ratings

Your Galaxy S21 Ultra case won't fit the Pixel 9a. Find the right case:

🛡️Best Pixel 9a Cases→🔒Rugged Cases for Pixel 9a→✨Clear Cases for Pixel 9a→👛Wallet Cases for Pixel 9a→

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Size Comparison

Galaxy S21 UltraPixel 9a

Wireless Charging & MagSafe

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Wireless chargers work with both phones, but magnetic snap varies.

Both devices support wireless charging. Standard Qi/Qi2 chargers work with either phone.

Galaxy S21 Ultra

Qi only

15W max

Pixel 9a

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.

See all cases for Pixel 9a →

🎁 Buying a case as a gift? Use our Gift Finder →⚡ Need a charger for your Pixel 9a? Check charger compatibility →

Does the screen protector fit? Galaxy S21 Ultra → Pixel 9a Compare sizes: Galaxy S21 Ultra vs Pixel 9a

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Frequently Asked Questions

Are Galaxy S21 Ultra and Pixel 9a the same size?

Galaxy S21 Ultra measures 165.1×75.6×8.9mm while Pixel 9a measures 154.7×73.3×8.9mm. They are different sizes.

Can I use a Galaxy S21 Ultra screen protector on Pixel 9a?

Edge types differ (curved vs flat) — screen protector won't adhere properly.

What's different between Galaxy S21 Ultra and Pixel 9a dimensions?

The height differs by 10.4mm, the width by 2.3mm, and thickness by 0.0mm. The camera module layout is also different.

Do I need a new case for Pixel 9a?

Yes, you'll need a new case. The Pixel 9a has different dimensions than the Galaxy S21 Ultra, so cases are not interchangeable.

Will Galaxy S21 Ultra accessories work with Pixel 9a?

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.

Want to check another phone?

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