Galaxy A51 5G128 GB•Black

Name: Refurbished Galaxy A51 5G
Brand: Samsung
Availability: InStock
Rating: 3.8 (26 reviews)

3.8/5(26 reviews)

£121.90

Save £277.10

Standard Delivery by 14 - 16 OctExpress Delivery by 12 Oct for £12.00

Restored professionally

Based on up to 100-points of inspection

The PhoneMart Promise

Based on up to 100-points of inspection

We measure each battery's health and capacity against strict standards, and replace any that don't make the grade, so you get power you can rely on all day.
The display is switched on and looked over closely for any blemishes, so there are no marks, dust spots or discolouration to spoil the view.
Where a charger is included, the cord and connectors are checked for wear, and the plug is confirmed to fit sockets.
Before it ships, every device gets a thorough professional clean and polish so it feels fresh in your hands.
Every lens is put to work, so we can confirm sharp photos, smooth video and reliable performance on video calls.
A full factory reset wipes the device clean, securely erasing all previous data and restoring the original settings.
We confirm the network status up front, so you know exactly whether the device is locked or unlocked before it arrives.
Cards are inserted to make sure the device reads SIM and memory cards correctly, and that every tray and slot works smoothly.
Each button is pressed to check it responds straight away and does exactly what it should, from volume to lock to power.
If any parts are fitted during refurbishment, they are tested for compatibility and held to the same standards as the originals.
We run the IMEI to confirm it is clean and never blacklisted, and that the device details match the manufacturer's records.
The moisture indicator inside the device is inspected to rule out any history of water or liquid damage.
Every port, including the headphone, USB and Ethernet connections, is checked to make sure it connects and works reliably.
Face and fingerprint unlock, along with any voice recognition, are tested to make sure they work quickly and accurately.
Positioning is checked for accurate GPS, so maps and location apps behave exactly as they should.
External sensors, such as proximity, brightness, laser measurement and heart rate, are checked for precise and responsive readings.
Screws, casing, frames and other mechanical parts are examined to confirm they are original or quality replacements, and any replacement has to match or beat industry standards.
We confirm that Wi-Fi and Bluetooth connect quickly and hold a stable signal.
Speakers and microphones are inspected and fine tuned so audio records and plays back clearly.
The flash and every indicator light are tested to confirm they light up and work correctly.
Any features that are specific to your device are checked against the same standards, so nothing gets missed.

Select the condition

Example image

Body

Light signs of useVerified partsBattery for daily use

Select the colour

Select the colour

Black

£121.90

Galaxy A51 5G

Good
Standard battery
Black
128 GB
Dual Physical SIM

£121.90

£399.00 newSave £277.10

14-day returns

Set up the return in just a few clicks in your PhoneMart account.

Send the device back within 14 days of receiving it. Return postage is paid by you unless the item is faulty, damaged or not what you ordered.

Get your cash back within 3 business days of the seller receiving the device.

Proudly refurbished by PhoneMart Privacy policy

Comes with

Compatible charging cable

Good-Standard battery-Black-128 GB-Dual Physical SIM

£121.90

£399.00 newSave £277.10

£121.90

£399.00 newSave £277.10

Customer reviews for Galaxy A51 5G

Overall rating

3.8/5

26 verified reviews

Rating details

Appearance: 3.7/5
Battery: 3.6/5
Delivery: 4.1/5

Reviews

Jacob Ogden

Verified purchase

5/5

Reviewed 17/03/2026, United Kingdom.

The phone arrived quickly and works great, like it's new.

Galaxy A51 5G 128GB Black Unlocked | PhoneMartSee item

Condition GoodPurchased 28/02/2026

Chris Roberts

Verified purchase

5/5

Reviewed 25/02/2025, United Kingdom.

I'm really happy with this phone.

Galaxy A51 5GSee item

Purchased 06/02/2025

Masego Terry

Verified purchase

5/5

Reviewed 09/07/2024, United Kingdom.

It arrived quickly with no scratches or marks. Setting it up was easy and it felt like a new phone. The battery condition is very good. It's a bargain compared to buying new. Thanks PhoneMart, I'll order again.

Galaxy A51 5GSee item

Purchased 28/06/2024

Carla Vance

Verified purchase

5/5

Reviewed 23/11/2023, United Kingdom.

The service was quick and the item was exactly as described.

Galaxy A51 5G 128GB Black Unlocked | PhoneMartSee item

Condition FairPurchased 10/11/2023

Iyiola Brown

Verified purchase

5/5

Reviewed 11/08/2023, United Kingdom.

Nice device. Although it was listed as "good condition," it looked clean and neat and worked perfectly, just like new. Great value for money.

Galaxy A51 5G 128GB Black Unlocked | PhoneMartSee item

Condition GoodPurchased 21/07/2023

Lesa Gibson

Verified purchase

5/5

Reviewed 06/08/2023, United Kingdom.

I'm completely sold on this phone. It looks and feels just like new. I'll be coming back to PhoneMart again and again.

Galaxy A51 5G 128GB Black Unlocked | PhoneMartSee item

Condition FairPurchased 18/06/2023

Michael Farrell

Verified purchase

5/5

Reviewed 21/07/2023, United Kingdom.

All good.

Galaxy A51 5G 128GB Black Unlocked | PhoneMartSee item

Condition FairPurchased 08/07/2023

Sampson Murphy

Verified purchase

5/5

Reviewed 11/06/2023, United Kingdom.

This phone is worth the price paid.

Galaxy A51 5G 128GB Black Unlocked | PhoneMartSee item

Condition GoodPurchased 06/06/2023

Sheila Grover

Verified purchase

5/5

Reviewed 12/02/2023, United Kingdom.

Great phone and excellent customer service.

Galaxy A51 5GSee item

Purchased 01/02/2023

Joel Neal

Verified purchase

5/5

Reviewed 30/12/2022, United Kingdom.

This is the first phone I bought from PhoneMart and choosing refurbished was a good decision. I will order again and tell others about it.

Galaxy A51 5G 128GB Black Unlocked | PhoneMartSee item

Condition GoodPurchased 21/12/2022

Common questions about the Galaxy A51 5G

Durability

Overall performance

Camera

Screen quality

Black

Colour

128 GB

Storage

Dual Physical SIM

Sim

Unlocked

Carrier compatibility

Compatible with latest update

USB-C + Jack 3.5mm

Connector

0,87 cm

Depth

Foldable

32 megapixels

Front camera

The Samsung Galaxy A51 5G is built for anyone who wants a sharp display and reliable performance for daily tasks. Its 6.5 inch Super AMOLED screen brings your photos and videos to life, making it a great choice for streaming and social media.

Released in 2020, the Samsung Galaxy A51 5G delivers smooth multitasking with 6 GB of memory and fast 5G connectivity. The unlocked design means you can choose your carrier freely, fitting well into your lifestyle wherever you go.

Key features

Carrier compatibility: Unlocked for any network
Screen size: 6.5 inch Super AMOLED for vibrant visuals
Memory: 6 GB RAM keeps apps running smoothly
Main camera: 48 megapixels captures detailed photos
Front camera: 32 megapixels sharp selfies
Mobile network: 5G for faster internet speeds

Who is this for?

The Samsung Galaxy A51 5G fits perfectly for anyone who wants a reliable phone for everyday use, whether at work, school, or home. If you enjoy capturing moments with a sharp 48 MP main camera and clear 32 MP selfies, this phone delivers on those needs.

This phone is also ideal for users who need a flexible unlocked device with 5G support for faster browsing and streaming. Its screen size and AMOLED display suit those who want vivid visuals for media and apps.

What you get and what to know

What you get	Good to know
Unlocked phone for any carrier choice	Runs Android without latest update support
6.5 inch Super AMOLED screen vibrant for media	USB-C + 3.5mm jack for charging and headphones
microSDXC slot expands your storage easily	Dual Physical SIM slots for two numbers

Why buy it refurbished?

Buying a refurbished Samsung Galaxy A51 5G helps reduce electronic waste by keeping devices in use longer. Every phone we sell passes up to a 100-point quality inspection covering screen, battery health, ports, cameras, and more to ensure full functionality.

Each device ships factory reset and graded for cosmetic condition, with a 24-month warranty, free delivery, and 14-day returns. Choosing refurbished means you get a tested and reliable phone while supporting a more sustainable approach.

ColourBlack

Storage128 GB

SimDual Physical SIM

Carrier compatibilityUnlocked

Compatible with latest updateNo

ConnectorUSB-C + Jack 3.5mm

Depth0,87 cm

FoldableNo

Front camera32 megapixels

Height15,89 cm

Main camera48 megapixels

Memory gb6 GB GB

Mobile network5G

OsAndroid

Resolution1080 x 2400

Sar body1,555

Sar head0,496

Screen size in6.5 inch

Screen typeSuper AMOLED

Sd card slotmicroSDXC

Sim cardDual Physical SIM

Weight187 g g

Width7,36 cm

Year of release2020

Welcome to PhoneMart

The best prices for high-quality renewed goods by sellers we’ve checked and vetted. We don’t mind if you Google us.

Get to know us

24-month warranty
Free delivery on all items
14-day returns
Excellent customer support

Popular searches

Galaxy A51 5G128 GB•Black

Restored professionally

Select the condition

Select the condition

Select a battery option

Select a battery option

Select storage

Select storage

Select SIM type

Select SIM type

Select the colour

Select the colour

14-day returns

Comes with

You may also like

Customer reviews for Galaxy A51 5G

Overall rating

Rating details

Reviews

Popular searches

Common questions about the Galaxy A51 5G

Key features

Who is this for?

What you get and what to know

Why buy it refurbished?

Welcome to PhoneMart