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No, your Galaxy S21 Ultra case won't fit the Honor X9b

The Galaxy S21 Ultra (165.1×75.6mm) and Honor X9b (163.6×75.5mm) differ too much for cases to be compatible.

Does a Galaxy S21 Ultra Case Fit Honor X9b?

Q: What's different between Galaxy S21 Ultra and Honor X9b dimensions?

The Galaxy S21 Ultra is 165.1mm tall and 75.6mm wide, while the Honor X9b is 163.6mm tall and 75.5mm wide. Camera module layout is different — cutout won't align

Last verified: March 2026

No, a Galaxy S21 Ultra case will not fit the Honor X9b. The phones have different dimensions that make cases incompatible.

0Won't Fit

Your Galaxy S21 Ultra case will NOT fit the Honor X9b. Here's why:

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

Spec	Galaxy S21 Ultra	Honor X9b	Diff
Height	165.1mm	163.6mm	Galaxy S21 Ultra +1.5mm
Width	75.6mm	75.5mm	Galaxy S21 Ultra +0.1mm
Thickness	8.9mm	8mm	Galaxy S21 Ultra +0.9mm
Camera Layout	vertical-quad	circular-triple	Different
Port	usb-c	usb-c	Same

⭐Based on Amazon best-seller rankings and ratings

Your Galaxy S21 Ultra case won't fit the Honor X9b. Find the right case:

🛡️Best Honor X9b Cases→🔒Rugged Cases for Honor X9b→✨Clear Cases for Honor X9b→👛Wallet Cases for Honor X9b→

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Size Comparison

Galaxy S21 UltraHonor X9b

Wireless Charging & MagSafe

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Only one phone supports wireless charging.

The Honor X9b does not support wireless charging. Only the Galaxy S21 Ultra can use a wireless charger.

Galaxy S21 Ultra

Qi only

15W max

Honor X9b

No wireless

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 Honor X9b →

🎁 Buying a case as a gift? Use our Gift Finder →⚡ Need a charger for your Honor X9b? Check charger compatibility →

Does the screen protector fit? Galaxy S21 Ultra → Honor X9b Compare sizes: Galaxy S21 Ultra vs Honor X9b

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Frequently Asked Questions

Are Galaxy S21 Ultra and Honor X9b the same size?

Galaxy S21 Ultra measures 165.1×75.6×8.9mm while Honor X9b measures 163.6×75.5×8mm. They are different sizes.

Can I use a Galaxy S21 Ultra screen protector on Honor X9b?

Same screen size (6.78") with minimal width difference — should fit.

What's different between Galaxy S21 Ultra and Honor X9b dimensions?

The height differs by 1.5mm, the width by 0.1mm, and thickness by 0.9mm. The camera module layout is also different.

Do I need a new case for Honor X9b?

Yes, you'll need a new case. The Honor X9b has different dimensions than the Galaxy S21 Ultra, so cases are not interchangeable.

Will Galaxy S21 Ultra accessories work with Honor X9b?

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?

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