More sustainable than new

Galaxy S21 Ultra 5G 256GB - Black - Unlocked - Dual-SIM

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Galaxy S21 Ultra 5G's customer reviews

4.3/5

704 verified reviews in the last 6 months.

  • M

    Mantas K.

    Purchased on the 12 March 2024

    4.5/5

    I purchased the Galaxy S21 Ultra 512GB model in good condition and it did arrive in good condition indeed. Screen - mint condition. I'm very happy, only thing is I had to get a fast charger for it. Also, battery is somewhat average but in fairness I didn't expect it to be much better anyway (lasts about a day with medium usage). Shopping experience was absolutely fantastic 👌 💯 I would highly recommend this company to anyone.

    Reviewed in Ireland on 24 March 2024

    Galaxy S21 Ultra 5G 256GB - Black - Unlocked - Dual-SIM
  • L

    Liam M.

    Purchased on the 4 March 2024

    4.8/5

    Hey quick service and good quality phone received. Recommended

    Reviewed in Ireland on 25 March 2024

    Galaxy S21 Ultra 5G 256GB - Black - Unlocked - Dual-SIM
  • E

    Emma B.

    Purchased on the 25 February 2024

    5/5

    Phone works perfectly and came in fantastic condition, and so quickly!

    Reviewed in Ireland on 10 March 2024

    Galaxy S21 Ultra 5G 256GB - Black - Unlocked - Dual-SIM
  • M

    Martin C.

    Purchased on the 19 March 2024

    3.1/5

    Delivered quickly. Software seems ok. Chip on phone's metal casing where it dropped or was scratched. Good value... Pity case didn't arrive with it. Waiting 2 weeks and still not delivered

    Reviewed in Ireland on 1 July 2024

    Galaxy S21 Ultra 5G 256GB - Black - Unlocked - Dual-SIM
  • T

    Tom S.

    Purchased on the 16 April 2024

    4.5/5

    Das ist mein erstes refurbished Smartphone und ich bin begeistert. Der Händler hat tolle Arbeit geleistet und es so übergeben wie beschrieben. Das Smartphone hat auch schon eine Härtetest in Form eines Urlaubs mitgemacht und voll bestanden. Die Akkuleistung ist auch in Ordnung. Das display ust im tadellosen Zustand und das Gehäuse hat eine kleine kerbe, die mich aber nicht stört, da es gebraucht ist und eine Hülle um das Telefon ist und man es dadurch nicht sieht. Wenn ich in Zukunft wieder ein Telefon brauche weiß ich wo ich suchen muss.

    Reviewed in Germany on 1 July 2024

    Galaxy S21 Ultra 5G 256GB - Black - Unlocked - Dual-SIM
  • A

    Anissa T.

    Purchased on the 29 May 2024

    4.5/5

    J'utilise mon Samsung S21 ultra depuis plus d'un mois, jusque là je suis très contente! J'ai pu faire le transfère depuis mon ancien samsung, du coup rien à paramétrer. Je suis particulièrement satisfaite de l'appareil photo et du zoom de super qualité. Point positif, la DAS de ce téléphone est assez faible, donc moins d'ondes . Attention toutefois, le S21 ultra est un peu lourd et la batterie, qui n'était pas neuve, se décharge assez vite en utilisation forte. Le téléphone est parfaitement compatible avec toutes les appli françaises mais j'ai fait attention à choisir un reconditionneur français et super bien noté (prix du tel un peu plus élevé). Envoi très rapide et soigné, le téléphone était bien calé dans son emballage avec câble de chargement. C'était mon premier achat recondionné, je trouve que ça vaut vraiment le coup!

    Reviewed in France on 8 July 2024

    Galaxy S21 Ultra 5G 256GB - Black - Unlocked - Dual-SIM
  • A

    Abimbola O.

    Purchased on the 31 March 2024

    4.4/5

    This is a fantastic phone and I totally recommend it. I was initially skeptical about buying a refurbished phone but I saw all the positive reviews and decided to give it a shot. I went for the "good" option just to be safe and I was totally satisfied with my purchase. The phone looks new with an unnoticeable scratch at the back. Other than that, it is totally worth it. I'm enjoying the phone. Thumbs up to the Back Market for their excellent customer service. I will surely come back for more. 😊

    Reviewed in United Kingdom on 1 July 2024

    Galaxy S21 Ultra 5G 256GB - Black - Unlocked - Dual-SIM
See all 704 reviews

Renewed vs. brand new

Here’s what you help prevent on average by choosing a renewed 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 Ultra 5G

Galaxy S21 Ultra 5G 256 GB Dual Sim - Black - Unlocked


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 Ultra 5G 256GB - Black - Unlocked - Dual-SIM

  • Colour : Black
  • Screen size (in) : 6.8
  • Storage : 256 GB
  • Memory : 12 GB
  • Model : Galaxy S21 Ultra 5G
  • OS : Android
  • Resolution : 1440x3200
  • Connector : USB-C
  • Network : 5G
  • SIM card : Unlocked
  • SD Card Slot : No
  • Camera Type : Quadruple (4x)
  • Manufacturer Ref : SM-G998B/DS
  • Year of Release : 2021
  • Series : Samsung Galaxy S
  • Foldable : No
  • SIM card : Dual-SIM + eSIM
  • Color (official name) : Phantom black
  • Product type : Refurbished
  • Double SIM : Yes
  • SAR body : 1,58
  • SAR body part : 2,56
  • SAR head : 0,714
  • Brand : Samsung
  • Weight : 227 g
  • Height : 16,15 cm
  • Width : 7,56 cm
  • Depth : 0,89 cm

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