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Galaxy S21 5G 128GB - Grey - Unlocked

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Galaxy S21 5G's customer reviews


4,306 verified reviews in the last 6 months.

  • A

    Andre R.

    Reviewed in United Kingdom on 25 February 2024

    First time I've used back market, I admit I was uncertain if buying a refurbished phone was a good move. But with the 12mth warranty felt well they must feel confident of their phones! So I gave it a try, and so far so good. The phone was in an almost as new condition which surprised me and exceeded my expectations. Lots of communication along the way keeping me informed on delivery. I also was able to trade in an old samsung for £43 that I didnt plan on doing. I thought its at least a saving off the price I paid for the new one. So yes was pleasantly surprised and would buy again in the future that offers the chance to buy a more high end phone for a more affordable cost. If I had to make one negative, which really isnt a big issue, the deposit for the trade in takes upto 6 working days to go into a bank. But as promised I did receive the funds within the 6 working days. Otherwise, yep, liked everything.
    Galaxy S21 5G 128GB - White - Unlocked - Dual-SIM

    Purchased on the 9 February 2024

  • A

    Andrew S.

    Reviewed in United Kingdom on 19 January 2024

    My previous phone packed up after several years. As I wanted to stay with Samsung S, getting to a reconditioned phone made sense as the price wasn't too much and the phone is great. I highly recommend using Back Market!
    Galaxy S21 5G 128GB - Purple - Unlocked

    Purchased on the 17 December 2023

  • M

    Mowahb K.

    Reviewed in United Kingdom on 30 November 2023

    I was pleased with my purchase, Samsung galaxy s21, the phone is light and quiet fast. The camera could have been better. Back market is definitely a place I recommend, between me and family this is our 4th time to purchase a refurbished phone. Great service, fast delivery and communication.
    Galaxy S21 5G 256GB - Pink - Unlocked - Dual-SIM

    Purchased on the 14 November 2023

  • Q

    Queen A.

    Reviewed in United Kingdom on 4 November 2023

    I am pleasantly surprised! I had just ordered 5 refurbished samsung galaxy a51’s last month on amazon to give to my family in another country. Great price but there were multiple issues with the phone and 3 of them have stopped working. I was extremely sceptical with buying another refurbished phone. My daughter had been researching on this site to look for a phone for me to use. I placed the order yesterday was told that it would come next week but i received it next day! Absolutely fantastic. Straight out of the box it looks brand new, body is clean, no scratches it looks perfect 🥳 Honestly so happy with this purchase, would definitely recommend and i will be buying again soon !
    Galaxy S21 5G 128GB - Purple - Unlocked - Dual-SIM

    Purchased on the 3 November 2023

  • J

    Jess B.

    Reviewed in United Kingdom on 29 October 2023

    I've bought 2 refurbished mobiles off backmarket- this Samsung S21 is amazingly refurbished it may as well be brand new! Looks good and runs smoothly, absolutely no issues. I am very happy with the customer service and the delivery. Please don't hesitate in using backmarket, brilliant phones everytime- definitely worth the money, and more! Thanks Backmarket!
    Galaxy S21 5G 128GB - Purple - Unlocked - Dual-SIM

    Purchased on the 13 October 2023

  • C

    Ceri D.

    Reviewed in United Kingdom on 24 March 2024

    I cannot fault backmarket at all. Great service the phone is like new. As a 1st time getting anything refurbished i was a bit sceptical bit i can honestly say i will never buy a new phone again i will go here and i willtell everyone to use the site .
    Galaxy S21 5G 128GB - Grey - Unlocked - Dual-SIM

    Purchased on the 14 March 2024

  • L

    Loise N.

    Reviewed in United Kingdom on 21 February 2024

    I am so happy with my purchase. I bought a pink galaxy but it had some issues. I reached out to the team and their response was so swift and helpful. I shipped it back and got a replacement all in under a week. I am so impressed and am loving the new phone. I am so glad i didnt spend a fortune on a new phone and instead bought a refurbished one which works just as well. I will definitely be using back market again.
    Galaxy S21 5G 128GB - Pink - Unlocked

    Purchased on the 25 January 2024

See all 4,306 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 S21 5G

Samsung Galaxy S21 5G 128 GB - Phantom Grey - Unlocked - EXCELLENT CONDITION


Our partners are electronics experts who test and verify that each product is 100% functional before it leaves the factory. This is the reason you benefit from a minimum 1-year warranty with the purchase of a refurbished device at Back Market.

Galaxy S21 5G 128GB - Grey - Unlocked

  • Colour : Grey
  • Screen size (in) : 6.2
  • Storage : 128 GB
  • Memory : 8 GB
  • Model : Galaxy S21 5G
  • Megapixels : 64
  • OS : Android
  • Resolution : 1080x2400
  • Connector : USB-C
  • Network : 4G
  • Release Date : January 2021
  • SIM card : Unlocked
  • SD Card Slot : No
  • Camera Type : Triple (3x)
  • Year of Release : 2021
  • Series : Samsung Galaxy S
  • Foldable : No
  • eSIM : Yes
  • SIM card : Single-SIM + eSIM
  • Color (official name) : Phantom gray
  • Product type : Refurbished
  • Double SIM : No
  • SAR head : 0.46
  • Brand : Samsung
  • Weight : 169 g

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