Galaxy S21 Ultra 5G 128GB - Black - Unlocked

  • Galaxy S21 Ultra 5G - Unlocked
1 - 3
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Buy now, pay later

Free delivery by Dec 5 - Dec 6
Express delivery by Dec 4 - Dec 5 from $30.00
Works with all carriers

Comes with

Good Karma
Charging cable

Refurbished and sold by O & M ELECTRONIC INC

Live on Back Market since 2021


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Galaxy S21 Ultra 5G - Unlocked's customer reviews


420 verified reviews in the last 6 months.

  • S

    Shawn C.


    Reviewed in the United States on July 11, 2023

    I'm Really happy with my Samsung galaxy S21 ultra 5G! I really like the screen size, how fast it operates and the long battery life! I'll definitely recommend Back Market to anyone looking for a really good refurbished phone!
    Galaxy S21 Ultra 5G 128GB - Black - Unlocked

    Purchased on July 4, 2023

  • R

    Robert A.


    Reviewed in the United States on October 22, 2023

    I knew that the Samsung S21 Ultra had a great camera, but the $1100-$1200 price tag kept me from owning one. Along came Back Market with a refurbished one in excellent condition at a third of the price with a one year warranty, so I jumped on it. The photos are outstanding, day or night and I am more than satisfied.
    Galaxy S21 Ultra 5G 128GB - Black - Unlocked

    Purchased on October 6, 2023

  • J

    Jennifer U.


    Reviewed in the United States on November 12, 2023

    I was very very skeptical about buying a refurbished phone. I debated about it for months. When my son bought a refurbished iPhone that looked brand new, and worked perfectly I decided to go for it! I was not disappointed! I got the Samsung galaxy S21 Ultra in excellent condition. It came quicker than expected and there were no noticeable scratches or dings on the back, there was a tiny scratch on the screen which you cannot even see with the screen on. Overall I am super satisfied with the phone, I got a great deal on an awesome phone! I will definitely buy from Backmarket again!
    Galaxy S21 Ultra 5G 128GB - Silver - Unlocked

    Purchased on October 29, 2023

  • D

    David G.


    Reviewed in the United States on July 24, 2023

    Top notch product! Excellent value, service, price and quality! I love BM their service is the best and the refurbished S21 ultra is amazing!! Thank you guys for helping the environment and saving your customers hundreds of dollars, I almost can't wait to buy another phone!
    Galaxy S21 Ultra 5G 128GB - Black - Unlocked

    Purchased on July 19, 2023

  • A

    Antonio E.


    Reviewed in the United States on August 1, 2023

    I extend my sincere appreciation for the refurbished Galaxy S21 Ultra you kindly provided. Your generosity has not only offered a practical and functional device but also showcased your thoughtfulness. This gesture demonstrates your understanding of my needs and financial constraints, making it all the more special. The fact that you took the time to ensure the phone's quality and usability speaks volumes about your care and consideration. I am truly grateful for this invaluable gift, as it not only enables me to stay connected but also serves as a reminder of your kindness. Your selfless act has touched me deeply, and I am humbled by your generosity. Thank you for making a positive impact on my life and brightening my days with your thoughtfulness.
    Galaxy S21 Ultra 5G 128GB - Black - Unlocked

    Purchased on July 17, 2023

  • R

    Roy S.


    Reviewed in the United States on August 6, 2023

    omg l received my phone in only a couple of days. it was listed as excellent condition they did not lie. wow awesome condition absolutely flawless.l am so happy got my phone number added in minutes. no faults to be reported. very happy with backmarket and this refurbisher. way to go
    Galaxy S21 Ultra 5G 128GB - Black - Unlocked

    Purchased on July 30, 2023

  • C

    Christina G.


    Reviewed in the United States on October 1, 2023

    I was very skeptical about ordering a refurbished phone. However, my son convinced me to order him a galaxy s21 plus and surprisingly, it was great! No issues. Looked brand new. Fast forward to me breaking my phone. I looked and found the s21ultra and ordered it. These phones are definitely top notch! I have no issues what so ever with
    Galaxy S21 Ultra 5G 128GB - Black - Unlocked

    Purchased on September 18, 2023

See all 420 reviews

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

171.1 lbs of CO2e

That's like driving an SUV from NYC to Chicago.

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.

20,341.2 gallons of water

That's like running a faucet for 3 days

Everything you ever wanted to know about the Galaxy S21 Ultra 5G 128GB - Black - Unlocked

Create professional quality content with the pro-grade camera system of the Samsung Galaxy S21 Ultra Dual-SIM 256GB 5G Smartphone. The quad camera system provides a 108MP wide, 12MP ultra-wide, 10MP 3x telephoto, and 10MP 10x telephoto cameras. In addition to 3x & 10x optical zoom, Space Zoom offers up to 100x digital zoom for long distance shots. Video recording can reach up to 8K resolution, and with 8K Video Snap, specific memories can be plucked out as 33MP hi-res stills. With support for an (optional) S Pen, you can precisely edit the footage, annotate, draw, and more. With a stunning 6.8" Quad HD+ Dynamic AMOLED 2x screen, the S21 Ultra has a large canvas to accommodate an S Pen. Integrated AI automatically adjusts the display's refresh rate between 10 to 120 Hz based on the content you view, providing a smooth scrolling experience when you need it, and battery preservation when you don't. Gorilla Glass Victus protects the display with extremely durable damage and scratch resistance. A tiny hole in the Infinity-O display accommodates a 40MP camera to handle your selfies. The screen on the Samsung S21 Ultra is how we experience all of what a smartphone can offer us, and much of that content is streamed to us via the internet. From streaming movies and TV shows to online gaming. This is why Samsung equipped the S21 Ultra with 5G support, maximizing your ability to utilize the blazing fast speeds that 5G can offer. The phone also supports Wi-Fi 6E, which expands home and public network support into the latest 6 GHz spectrum for more stable connections and the fastest bandwidth possible. Scratch and Dent products are systems with considerable cosmetic blemishes