Galaxy A31128 GB•Black

Name: Refurbished Galaxy A31
Brand: Samsung
Availability: InStock
Rating: 4.8 (6 reviews)

4.8/5(6 reviews)

£148.35

Save £210.65

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

Galaxy A31

Good
Standard battery
Black
128 GB
Physical SIM

£148.35

£359.00 newSave £210.65

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-Physical SIM

£148.35

£359.00 newSave £210.65

£148.35

£359.00 newSave £210.65

Customer reviews for Galaxy A31

Overall rating

4.8/5

6 verified reviews

Rating details

Appearance: 5/5
Battery: 4.7/5
Delivery: 4.8/5

Reviews

Sacha Gould

Verified purchase

5/5

Reviewed 12/04/2026, United Kingdom.

Great quality, fast shipping, and excellent customer service. I've ordered three phones from PhoneMart and each one has been fantastic.

Galaxy A31 128GB White Unlocked | PhoneMartSee item

Condition ExcellentPurchased 29/03/2026

Stephen Johnson

Verified purchase

5/5

Reviewed 07/03/2025, United Kingdom.

Fantastic phone, looks and works like new. Delivered in 2 days, great as always.

Galaxy A31 128GB Black Unlocked | PhoneMartSee item

Condition GoodPurchased 13/02/2025

Mia Parker

Verified purchase

5/5

Reviewed 30/11/2024, United Kingdom.

This phone is in better condition than my new one! Delivery was really fast and I love not having to spend so much on a new phone. It also helps the environment, which is great.

Galaxy A31 128GB Blue Unlocked | PhoneMartSee item

Condition ExcellentPurchased 15/11/2024

Sacha Gould

Verified purchase

5/5

Reviewed 27/10/2023, United Kingdom.

Great quality and fast delivery. This is my second time using PhoneMart and I'm always impressed by their service.

Galaxy A31See item

Purchased 15/10/2023

Marion Abbott

Verified purchase

5/5

Reviewed 14/12/2020, United Kingdom.

Really happy about my new phone, the delivery was fast. The box was a bit damaged but I guess it's because it reconditioned. The product is in perfect condition, it is delivered with a charger, a phone case and earphones.

Galaxy A31 128GB Black Unlocked | PhoneMartSee item

Condition GoodPurchased 01/12/2020

Mildred Foster

Verified purchase

4/5

Reviewed 08/10/2023, United Kingdom.

fantastic

Galaxy A31See item

Purchased 07/09/2023

Common questions about the Galaxy A31

Durability

Overall performance

Camera

Screen quality

Black

Colour

128 GB

Storage

Physical SIM

Sim

Unlocked

Carrier compatibility

Compatible with latest update

Foldable

20 megapixels

Front camera

6 GB GB

Memory gb

Mobile network

If you want a smartphone that handles browsing, social apps, and video playback with ease, the Samsung Galaxy A31 from 2020 fits that need well. Its 6.4 inch screen with 1080 by 2400 pixels resolution gives sharp images that bring your media and photos to life.

The Samsung Galaxy A31 comes with 6GB of RAM to keep your everyday apps running smoothly and a 20 megapixel front camera that captures clear selfies. It's unlocked, so you can use it with the network of your choice, and it offers expandable storage through a microSDXC card slot to hold your music, photos, and files.

Key features

Carrier compatibility: Unlocked for any network
Screen size: 6.4 inches, sharp 1080x2400 resolution
Memory gb: 6 GB for smooth multitasking
Front camera: 20 megapixels for clear selfies
Mobile network: 4G connectivity for fast browsing
Sd card slot: microSDXC for extra storage

Who is this for?

The Samsung Galaxy A31 is a solid choice for anyone needing a dependable phone for daily routines like messaging, streaming, and social media. Its screen size and resolution make it especially good for those who spend time watching videos or browsing photos.

It's also a good fit for people who want a phone that works on any network thanks to its unlocked status and who like to keep their storage flexible with a microSD card. The 20 megapixel front camera makes it suitable for clear video calls and selfies.

What you get and what to know

What you get	Good to know
6GB RAM keeps apps responsive	Runs Android without the latest update
6.4 inch screen sharp 1080x2400 display	Supports 4G mobile network speeds
Expandable storage via microSDXC slot	Uses physical SIM card for connectivity

Why buy it refurbished?

Choosing a refurbished Samsung Galaxy A31 helps reduce electronic waste by extending the life of a fully tested phone. Every device undergoes up to a 100-point inspection by industry professionals to ensure it works reliably and looks good.

Refurbished phones from PhoneMart come factory reset, with a 24-month warranty, free delivery, and a 14-day return option, making your purchase safe and sustainable.

ColourBlack

Storage128 GB

SimPhysical SIM

Carrier compatibilityUnlocked

Compatible with latest updateNo

FoldableNo

Front camera20 megapixels

Memory gb6 GB GB

Mobile network4G

OsAndroid

Resolution1080x2400

Sar body1.68

Sar head0.49

Screen size in6.4 inch

Sd card slotmicroSDXC

Sim cardPhysical SIM

Weight185 g g

Year of release2020

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What you get and what to know

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