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Galaxy A21s 64GB - Black - Unlocked

£108.00
before trade-in
Save £181.99


Free delivery by 10 Jul - 11 Jul
Express delivery by 8 Jul-9 Jul from £8.00

All devices are restored professionally based on a 25-point inspection

  • Buttons
  • SIM/memory card readerr
  • Data deletion
  • Chargers/cables
  • Unlocked by previous owner
  • GPS/positioning system
  • Cameras
  • External sensors
  • Biometric sensors
  • Wi-Fi and Bluetooth
  • IMEI serial number
  • Water damage
  • Flash and indicator lights
  • Mics and speakers
  • Input and output ports
  • Phone carrier
  • Battery health
  • Mechanical parts
  • Parts compatibility
  • Screen
  • Other features specific to this device

Ta-da!

Galaxy A21s 64GB - Black - Unlocked
Galaxy A21s
GoodStandard battery64 GBDual Physical SIMBlack
£108.00
before trade-in
Save £181.99

Proudly refurbished by Smart Fleet Ltd (United Kingdom)

Free delivery by 10 Jul - 11 Jul
Express delivery by 8 Jul-9 Jul from £8.00

Comes with

Compatible charging cable

Galaxy A21s 64GB - Black - Unlocked: customer reviews

270 verified reviews in the last 24 months.

  • M

    Marti L.

    Purchased on the 25 April 2025

    Verified purchase

    Very nice reconditioned phone. I will never buy any tech from anyone else. The phone works well and I love it. Delivery was quick and the phone was very well packaged.

    Reviewed in United Kingdom on 12 May 2025

  • S

    Simon C.

    Purchased on the 15 January 2024

    Verified purchase

    Great company and the phone I wanted was in perfect condition, really pleased. HOWEVER, do not trade anything in if you are looking for honesty! I sent my previous phone in having been made an offer. It was in pristine condition, I looked after it extremely well. Once received, the third-party refurbisher offered me a lower amount saying there were dents and scratches. The photos provided were very clearly not the way I had packed up the phone and couldn't have been done in transit - to be frank, if it was even my phone (which I can't be sure of) the photos looked like there were scratches that had been deliberately made in one corner with a scourer or something. Go elsewhere for trade in!!

    Reviewed in United Kingdom on 26 January 2024

  • L

    Luke O.

    Purchased on the 13 July 2023

    Verified purchase

    I have used backmarket before and was pleased I did last time and I'm super pleased this time also, the process was very simple the quality of product is outstanding for a refurbished phone it's as good as new and the ordering delivering process was spot on couldn't get any better 5star review deserves 6 I have and would recommend to everyone thank you backmarket I will certainly be back soon! 💯😍❤

    Reviewed in United Kingdom on 8 August 2023

  • J

    Jo D.

    Purchased on the 20 January 2024

    Verified purchase

    Excellent service, phone is in excellent condition and arrived in double quick time. This is the 3rd reconditioned phone we've had from Back market

    Reviewed in United Kingdom on 4 February 2024

  • C

    Cerise S.

    Purchased on the 15 January 2024

    Verified purchase

    Replaced my 32GB phone of the same make and model with a 64 GB and I'm very impressed. Functionality is good, the condition is brilliant and it arrived well before the due date. I was able to replace my original phone which was largely brand new with this phone seamlessly. It doesn't come with the tool to remove the sim so make sure you have one before buying.

    Reviewed in United Kingdom on 27 January 2024

  • J

    Jan A.

    Purchased on the 20 December 2023

    Verified purchase

    Fantastic service from Back Market, but sadly I feel I have chosen the wrong phone. I loved my old Galaxy S7 and find the A21s far too big and heavy for me, and also having to find the button on the side to wake it up, which seems to hide behind the case cover which is very annoying! I guess as an old bird I'm finding it hard to break old habits and hope I'll get used to it. I'm sure it's a brilliant phone, but just not for me!

    Reviewed in United Kingdom on 1 January 2024

  • R

    Rebecca G.

    Purchased on the 15 October 2024

    Verified purchase

    Phone arrived well packed, on time and as described. Works a dream. We'd ordered a 'good' condition one, to save money, expecting a few scratches or dents, but the condition is perfect. Thank you.

    Reviewed in United Kingdom on 26 October 2024

See all 270 reviews

Reborn vs. brand new

Here’s what you help prevent on average by choosing a reborn smartphone over a brand new one.

77.3 kg of carbon

That’s like driving an old banger from London to Edinburgh and back.

6.3 oz of e-waste

That’s around the weight of a baseball.

537.1 lbs of raw materials

That's like 20 dogs digging in your yard for a week.

77,000 litres of water

That's like running a faucet for 3 days

Everything you ever wanted to know about the Galaxy A21s 64GB - Black - Unlocked


  • Durability

  • Overall performance

  • Camera

  • Screen quality

  • BlackColour

  • 64 GBStorage

  • 6 GBMemory

  • Galaxy A21sModel

  • AndroidOS

  • NoRetro tech

  • PLS LCDScreen type

  • USB-C + Jack 3.5mmConnector

  • 13 megapixelsFront camera

The Samsung Galaxy A21s is a reliable smartphone that offers a solid balance of performance and functionality for everyday use. Released in May 2020, it remains a practical choice for users seeking a dependable device without the need for high-end features.

Key features:
  • Display: 6.5-inch HD+ Infinity-O display
  • Processor: Exynos 850
  • Camera: Quad-camera system with a 48MP main sensor
  • Storage: 64GB internal storage, expandable via microSD
  • Connectivity: 4G LTE capable for reliable internet access.
Who is this for?

The Samsung Galaxy A21s is ideal for students, casual users, or anyone who needs a smartphone for daily tasks such as browsing, social media, and photography. It offers a good mix of features for those who do not require the latest technology but still want a functional device.

Pros & Cons:
Pros Cons
Large display for media consumption. Performance may lag with demanding applications.
Versatile camera setup for various photography needs. Plastic build may feel less premium.

Why refurbished?

Choosing a refurbished Samsung Galaxy A21s means opting for a device that has been tested and restored to excellent working condition. This eco-conscious choice allows you to enjoy a reliable smartphone while contributing to sustainability. Back Market ensures that all refurbished devices meet rigorous quality standards. Learn more about our quality standards.

Galaxy A21s 64GB - Black - Unlocked
ColourBlack
Storage64 GB
Memory6 GB
ModelGalaxy A21s
OSAndroid
Retro techNo
Screen typePLS LCD
ConnectorUSB-C + Jack 3.5mm
Front camera13 megapixels
Company nameSamsung Electronics
Camera TypeQuadruple (4x)
SeriesSamsung Galaxy A
Company email addresssupport@samsung.com
Company postal addressSamsung House, 1000 Hillswood Drive, Chertsey, Surrey, KT16 0PS, UK
SIM cardDual Physical SIM
Main camera48 megapixels
Colour (official name)Black
SD Card SlotmicroSDXC
FoldableNo
Compatible with latest UpdateNo
Manufacturer RefSM-A217F
Network4G
Resolution720 x 1600
SAR body1.54
SAR head0.42
Screen size (in)6.5
Carrier compatibilityUnlocked
Year of Release2020
BrandSamsung
Weight192 g

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