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No, your Galaxy S21 Ultra case won't fit the Oppo A79

The Galaxy S21 Ultra (165.1×75.6mm) and Oppo A79 (165.6×76mm) differ too much for cases to be compatible.

Does a Galaxy S21 Ultra Case Fit Oppo A79?

Q: What's different between Galaxy S21 Ultra and Oppo A79 dimensions?

The Galaxy S21 Ultra is 165.1mm tall and 75.6mm wide, while the Oppo A79 is 165.6mm tall and 76mm wide. Body dimensions are nearly identical, but the camera cutout is incompatible (vertical-quad vs vertical-dual)

Last verified: March 2026

No, a Galaxy S21 Ultra case will not fit the Oppo A79. The phones have different dimensions that make cases incompatible.

5Won't Fit

Your Galaxy S21 Ultra case will NOT fit the Oppo A79. Here's why:

•Body dimensions are nearly identical, but the camera cutout is incompatible (vertical-quad vs vertical-dual)

Spec	Galaxy S21 Ultra	Oppo A79	Diff
Height	165.1mm	165.6mm	Oppo A79 +0.5mm
Width	75.6mm	76mm	Oppo A79 +0.4mm
Thickness	8.9mm	7.99mm	Galaxy S21 Ultra +0.9mm
Camera Layout	vertical-quad	vertical-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 Oppo A79. Find the right case:

🛡️Best Oppo A79 Cases→🔒Rugged Cases for Oppo A79→✨Clear Cases for Oppo A79→👛Wallet Cases for Oppo A79→

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Size Comparison

Galaxy S21 UltraOppo A79

Wireless Charging & MagSafe

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Only one phone supports wireless charging.

The Oppo A79 does not support wireless charging. Only the Galaxy S21 Ultra can use a wireless charger.

Galaxy S21 Ultra

Qi only

15W max

Oppo A79

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 Oppo A79 →

🎁 Buying a case as a gift? Use our Gift Finder →⚡ Need a charger for your Oppo A79? Check charger compatibility →

Does the screen protector fit? Galaxy S21 Ultra → Oppo A79 Compare sizes: Galaxy S21 Ultra vs Oppo A79

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Frequently Asked Questions

Are Galaxy S21 Ultra and Oppo A79 the same size?

Galaxy S21 Ultra measures 165.1×75.6×8.9mm while Oppo A79 measures 165.6×76×7.99mm. They are different sizes.

Can I use a Galaxy S21 Ultra screen protector on Oppo A79?

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

What's different between Galaxy S21 Ultra and Oppo A79 dimensions?

The height differs by 0.5mm, the width by 0.4mm, and thickness by 0.9mm. The camera module layout is also different.

Do I need a new case for Oppo A79?

Yes, you'll need a new case. The Oppo A79 has different dimensions than the Galaxy S21 Ultra, so cases are not interchangeable.

Will Galaxy S21 Ultra accessories work with Oppo A79?

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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