Galaxy A21s32 GB•Black

Name: Refurbished Galaxy A21s
Brand: Samsung
Availability: InStock
Rating: 4.3 (171 reviews)

4.3/5(171 reviews)

£77.63

Save £151.37

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

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Body

Visible signs of useVerified partsBattery for daily use

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Galaxy A21s

Fair
Standard battery
Black
32 GB
Physical SIM

£77.63

£229.00 newSave £151.37

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

Fair-Standard battery-Black-32 GB-Physical SIM

£77.63

£229.00 newSave £151.37

£77.63

£229.00 newSave £151.37

Customer reviews for Galaxy A21s

Overall rating

4.3/5

171 verified reviews

Rating details

Appearance: 4.4/5
Battery: 4.3/5
Delivery: 4.5/5

Reviews

Rita Thompson

Verified purchase

5/5

Reviewed 01/09/2026, United Kingdom.

Wow nice phone

Galaxy A21s 64GB Black Unlocked | PhoneMartSee item

Condition ExcellentPurchased 22/08/2026

Michael Eaton

Verified purchase

5/5

Reviewed 27/08/2026, United Kingdom.

I was very happy with the phone's quality as it looks perfect. However, I ordered a 128GB model but the phone shows only 64GB capacity, as the attached photo shows. I have already set up the phone and do not want to go through the hassle of returning it despite the wrong memory size. Best wishes, Michael

Galaxy A21sSee item

Purchased 14/08/2026

Isabelle Radford

Verified purchase

5/5

Reviewed 20/08/2026, United Kingdom.

The phone feels like new and arrived really fast.

Galaxy A21s 64GB Black Unlocked | PhoneMartSee item

Condition ExcellentPurchased 09/08/2026

Kevin Short

Verified purchase

5/5

Reviewed 19/08/2026, United Kingdom.

The phone arrived in good condition and was well packed.

Galaxy A21s 64GB Blue Unlocked | PhoneMartSee item

Condition ExcellentPurchased 11/08/2026

Julie Reid

Verified purchase

5/5

Reviewed 17/08/2026, United Kingdom.

Everything went as expected from ordering to delivery. The phone is in great condition and so far no issues. I have bought from PhoneMart before and knew they were reliable.

Galaxy A21s 32GB Black Unlocked | PhoneMartSee item

Condition GoodPurchased 09/08/2026

Nicoleta Richards

Verified purchase

5/5

Reviewed 25/07/2026, United Kingdom.

The device arrived in excellent condition, exactly as described. My son is very happy with it.

Galaxy A21s 32GB Black Unlocked | PhoneMartSee item

Condition ExcellentPurchased 13/07/2026

Hyller Phillips

Verified purchase

5/5

Reviewed 19/07/2026, United Kingdom.

very good

Galaxy A21s 32GB Black Unlocked | PhoneMartSee item

Condition ExcellentPurchased 12/07/2026

Jodie Charlton

Verified purchase

5/5

Reviewed 03/07/2026, United Kingdom.

I've only had it a week, but it seems to be working well and is in excellent condition. No problems so far.

Galaxy A21s 32GB Black Unlocked | PhoneMartSee item

Condition ExcellentPurchased 19/06/2026

Laura Gordon

Verified purchase

5/5

Reviewed 19/06/2026, United Kingdom.

The phone condition is great and the service is fantastic as always. I've bought several for my grandkids and have never been disappointed.

Galaxy A21s 32GB Black Unlocked | PhoneMartSee item

Condition ExcellentPurchased 07/06/2026

Abu Bokker Stanley

Verified purchase

5/5

Reviewed 31/05/2026, United Kingdom.

It works perfectly and is in very good condition.

Galaxy A21s 64GB Black Unlocked | PhoneMartSee item

Condition ExcellentPurchased 15/05/2026

Common questions about the Galaxy A21s

Durability

Overall performance

Camera

Screen quality

Black

Colour

32 GB

Storage

Physical SIM

Sim

Unlocked

Carrier compatibility

Compatible with latest update

Foldable

13 megapixels

Front camera

48 megapixels

Main camera

3 GB GB

Memory gb

When you pick up the Samsung Galaxy A21s, you get a phone built around a 6.5 inch PLS LCD screen that fills your view with bright, clear images. The size makes it easy to read messages, browse social media, or watch videos, all in a form that fits comfortably in your hand or pocket. Released in 2020, the Samsung Galaxy A21s carries a design and feature set that handles everyday Android tasks smoothly.

The Samsung Galaxy A21s comes unlocked, giving you the freedom to choose your network provider. Its 48 megapixel main camera lets you capture moments with visible detail, while the 13 megapixel front camera is ready for selfies or video calls. With 3 GB of RAM, this phone keeps common apps running without delays, and its 4G mobile network support ensures steady connectivity on the go.

Key features

Carrier compatibility: Unlocked for flexible use
Screen size: 6.5 inches, PLS LCD for vibrant viewing
Main camera: 48 megapixels for detailed photos
Front camera: 13 megapixels for clear selfies
Memory: 3 GB RAM keeps daily apps responsive
Mobile network: 4G connectivity for steady browsing

Who is this for?

The Samsung Galaxy A21s fits anyone looking for a clear, large display to enjoy videos, read messages, or browse the web comfortably. It suits users who appreciate a straightforward Android experience without extra complexity.

This phone works well for someone buying their first smartphone, needing a reliable device for social media and communication, or anyone wanting a secondary phone that handles common tasks with ease.

What you get and what to know

What you get	Good to know
Unlocked phone use with any carrier	Runs Android with a familiar setup
48MP camera for detailed photos	Uses physical SIM card for network access
Expandable storage via microSDXC slot	3 GB RAM keeps apps responsive

Why buy it refurbished?

Choosing a refurbished Samsung Galaxy A21s means you get a fully tested and inspected phone. Each device passes up to a 100 point quality check that covers all key features including screen, cameras, buttons, and network functions. The phone ships factory reset and graded by cosmetic condition, but always fully working.

Buying refurbished keeps electronics in use longer and reduces waste, making it a conscious choice that saves you money while supporting the environment.

ColourBlack

Storage32 GB

SimPhysical SIM

Carrier compatibilityUnlocked

Compatible with latest updateNo

FoldableNo

Front camera13 megapixels

Main camera48 megapixels

Memory gb3 GB GB

Mobile network4G

OsAndroid

Resolution720 x 1600

Sar body1.54

Sar head0.42

Screen size in6.5 inch

Screen typePLS LCD

Sd card slotmicroSDXC

Sim cardPhysical SIM

Weight192 g g

Year of release2020

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Galaxy A21s32 GB•Black

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What you get and what to know

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