Oppo A78 5GBlack • 128 GB • Dual Physical SIM

Name: Oppo A78 5G 128GB - Black - Unlocked
Brand: Oppo
Price: 139.00 GBP
Availability: InStock
Rating: 4.47 (19 reviews)

(19 reviews)

£139.00

before trade-in

Save £160.00

Free delivery by 10 - 11 Sept

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Based on up to 100-points of inspection

Customer reviews for Oppo A78 5G

Overall rating

19 verified reviews

Rating details

Accessories
4.3/5
Appearance
4.5/5
Battery
4.4/5
Lens & Camera
4.3/5
Overall performance
4.4/5
Packaging
4.6/5
Shipping
4.8/5

Reviews

Jas Z.
Verified purchase
Reviewed 17/03/2025, Ireland.
Bought one in "good" condition and it came perfect. I was expecting scratches and some damage but theres nothing. Great phone, great service. The phone was delivered in few days. Im very happy with this website.
Oppo A78 5G 128GB - Black - Unlocked
Oppo A78 5G 128GB - Black - Unlocked
Condition
Good
Light signs of wear. The body may have light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
01/03/2025
John S.
Verified purchase
Reviewed 15/02/2026, Netherlands.
Can't say other than: Awesome!!!
Translated from Dutch
Oppo A78 5G 128GB - Zwart - Simlockvrij
Oppo A78 5G 128GB - Zwart - Simlockvrij
Condition
Good
Light signs of wear. The body may have light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
01/02/2026
Alan G.
Verified purchase
Reviewed 22/11/2024, France.
top nickel as agreed
Translated from French
Oppo A78 5G 128 Go - Noir - Débloqué
Oppo A78 5G 128 Go - Noir - Débloqué
Condition
Excellent
Almost no signs of wear. The body may have very light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
18/11/2024
Meriem C.
Verified purchase
Reviewed 20/10/2025, France.
clean product its scratched. like new...
Translated from French
Oppo A78 5G 128 Go - Noir - Débloqué
Oppo A78 5G 128 Go - Noir - Débloqué
Condition
Fair
Signs of wear. The body may have a few visible scratches and dents. Items with screens may have light scratches.
Purchased
08/10/2025
Jérémie P.
Verified purchase
Reviewed 12/10/2025, France.
The device works well but it does not correspond to the product ordered. I received an Oppa A78 4G when I had ordered (and paid for) a 5G!
Translated from French
Oppo A78 5G 128 Go - Noir - Débloqué
Oppo A78 5G 128 Go - Noir - Débloqué
Condition
Fair
Signs of wear. The body may have a few visible scratches and dents. Items with screens may have light scratches.
Purchased
29/09/2025
Carlos javier P.
Verified purchase
Reviewed 07/04/2024, Spain.
I am generally happy with the purchase process. Although there were some problems, but they have been solved well. Thank you.
Translated from Spanish
Oppo A78 5G 128GB - Negro - Libre
Oppo A78 5G 128GB - Negro - Libre
Condition
Excellent
Almost no signs of wear. The body may have very light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
21/03/2024
Roberta D.
Verified purchase
Reviewed 14/03/2024, Italy.
Phone in perfect condition as described, super soddi
Translated from Italian
Oppo A78 5G 128GB - Nero
Oppo A78 5G 128GB - Nero
Condition
Excellent
Almost no signs of wear. The body may have very light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
07/02/2024

Everything you ever wanted to know about the Oppo A78 5G

Oppo A78 5GModel
BlackColour (official name)
microSDXCSD Card Slot
NoFoldable
2023Year of Release
OppoBrand
5GMobile network
6,56Screen size (in)
1.24SAR head

The Oppo A78 5G made its debut in early 2023, bringing 5G to everyday users without making a fuss about it. Now two years on, it remains a solid choice for anyone seeking reliable performance, straightforward features, and a modern design that doesn’t overcomplicate things. If you like tech that just works, the A78 5G keeps things refreshingly simple without feeling behind the curve.

Key features:

Release Date: January 2023
Display: 6.56-inch IPS LCD, 90Hz refresh rate
Processor: MediaTek Dimensity 700 (Octa-core)
Camera: Dual rear cameras: 50MP main + 2MP depth sensor, 8MP front camera
Operating System: Ships with Android 13 (ColorOS 13)
Connectivity: 5G compatible for faster data speeds and smoother streaming
Wi-Fi: Wi-Fi 5 (802.11ac)
Build: Plastic frame and back, with a side-mounted fingerprint sensor

Who is this for?

The Oppo A78 5G is ideal for students, commuters, or anyone wanting effortless day-to-day performance and dependable 5G connectivity. It’s especially well-suited for those who want a fuss-free Android experience, prefer a readable LCD display, or just need a pre-owned device that handles messaging, social media, and streaming without drama. If you’re choosing between this and fancier alternatives, note that flagship features like AMOLED displays or ultra-wide cameras are missing—but sometimes simple really is best.

Pros & Cons:

Pros	Cons
Reliable 5G chipset for speedy browsing and downloads.	No AMOLED display—just an LCD, so blacks aren’t as deep.
Clean Android 13 OS shipped out of the box.	Basic camera setup, with no ultra-wide or telephoto lens.
90Hz refresh rate keeps the screen looking smooth.	Build is all-plastic—very practical, but not exactly “premium”.

Why refurbished?

Going for a refurbished Oppo A78 5G means less e-waste and a second chance for tech that still has life left in it. Every smartphone from Back Market is tested, cleaned, and checked against our quality standards—because “pre-owned” shouldn’t mean “worn out”. It’s circular tech made practical.

Model: Oppo A78 5G
Colour (official name): Black
SD Card Slot: microSDXC
Foldable: No
Year of Release: 2023
Brand: Oppo
Mobile network: 5G
Screen size (in): 6,56
SAR head: 1.24
Storage: 128 GB
Memory (GB): 4 GB
Connector: USB-C + Jack 3.5mm
Weight: 188 g
Colour: Black
Carrier compatibility: Unlocked
SIM card: Dual Physical SIM
OS: Android

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Oppo A78 5GBlack • 128 GB • Dual Physical SIM

Oppo A78 5GBlack • 128 GB • Dual Physical SIM

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Customer reviews for Oppo A78 5G

Overall rating

Rating details

Reviews

Reviews

Jas Z.

John S.

Alan G.

Meriem C.

Jérémie P.

Carlos javier P.

Roberta D.

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Everything you ever wanted to know about the Oppo A78 5G

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