Free delivery by Jun 11 - 12
Express delivery by Jun 10 - 11 from $15.00

Body

Screen
All guaranteed 100% functional








Compatible charging cable

Refurbished price:$282.64
$1,500.00 newVersus $1,500.00 new
Refurbished price:$429.00
$829.00 newVersus $829.00 new


Refurbished price:$389.99
$1,199.99 newVersus $1,199.99 new

Refurbished price:$585.00
$829.00 newVersus $829.00 new

Refurbished price:$546.00
$1,204.00 newVersus $1,204.00 new



Refurbished price:$534.00
$999.99 newVersus $999.99 new

Refurbished price:$400.00
$729.00 newVersus $729.00 new

Refurbished price:$153.98
$579.00 newVersus $579.00 new

Refurbished price:$229.00
$799.00 newVersus $799.00 new

Refurbished price:$167.14
$699.99 newVersus $699.99 new













Battery
4.2/5
Shipping
4.3/5
Lens & Camera
4.4/5
Accessories
3.9/5
Packaging
4.3/5
Overall performance
4.3/5
Appearance
4.2/5
Reviewed 5/11/25, United States.
The phone is in great condition. ONE tiny nick in a discreet spot, can't even notice! No scratches on screen or back . Definitely worth the money I spent. Phone works exactly how it suppose to. Another plus was fast shipping. I couldn't be happier.
Galaxy S21 Ultra 5G 256GB - Silver - Locked T-Mobile
See itemCondition
Good
Purchased
4/28/25
Reviewed 8/17/23, United States.
I'm really happy with the phone, but the Asurian insurance plan is terrible. The screen on my phone cracked within 10 days so I filed a claim with Asurian. I entered all of the info into their system. They acknowledged my claim and asked me to fill in a pdf with all of the same info unless I already provided it. Apparently, they wanted me to provide it again and I only learned that after spending 45 minutes on the phone. They also asked for a copy of the product receipt and insurance receipt. They should have all of this on file. The latest request is for a picture of the front and back of the phone. I wonder what the next hoop is that they want me to jump through. It feels like they are making this difficult on purpose to prevent claims. Also, Back Market is not listed as a retailer with Asurian so it's impossible to get info from them on claim status.
Galaxy S21 Ultra 5G 256GB - Black - Locked T-Mobile
See itemCondition
Fair
Purchased
7/31/23
Reviewed 5/12/25, United States.
Phone said it was in good shape, I would say excellent
Galaxy S21 Ultra 5G 256GB - Silver - Locked T-Mobile
See itemCondition
Good
Purchased
4/29/25
Reviewed 11/10/24, United States.
Very quick shipping. Product came as described.
Galaxy S21 Ultra 5G 256GB - Black - Locked T-Mobile
See itemCondition
Premium
Purchased
10/28/24
Reviewed 10/29/23, United States.
I purchased a phone advertised as excellent condition and it wasn't!! the top of the screen has a chip and right below it a scratch!!! The bottom of the phone buy speaker and charging port are chipped and scratched...I had no choice but to keep the phone because my previous phone was no longer working...I wasn't going to leave a review but I think you should know that it wasn't in excellent condition but phone is in good working condition everything works as it should...Thanks Nick
Galaxy S21 Ultra 5G 128GB - Black - Locked T-Mobile
See itemCondition
Excellent
Purchased
10/15/23
Reviewed 9/25/23, United States.
Phone is in terrible shape considering this is considered "good." It has several scratches on the screen. Some are so deep I can feel them with my fingernail. USB-C port looks to be in bad shape too. Didn't even try turning it on. Very disappointed.
Galaxy S21 Ultra 5G 128GB - Black - Locked T-Mobile
See itemCondition
Good
Purchased
9/21/23
Reviewed 9/3/23, United States.
In better than new condition
Galaxy S21 Ultra 5G 128GB - Black - Locked T-Mobile
See itemCondition
Excellent
Purchased
8/22/23
2021Release Year
AndroidOS
Galaxy S21 Ultra 5GModel
40 megapixelsFront camera
SamsungBrand
0.77SAR head
Physical SIM + eSIMSIM card
SM-G998UManufacturer Ref.
5GNetwork
The Samsung Galaxy S21 Ultra 5G remains a flagship device from early 2021, offering a robust combination of performance, display quality, and camera capabilities. Though it is over three years old, it still delivers a premium experience for users who need a powerful Android smartphone.
Key features:The Galaxy S21 Ultra 5G is suited for users who want a high-end smartphone with a large, vibrant display and versatile camera setup. It is ideal for photographers, power users, and professionals who need reliable multitasking and media consumption. Compared to newer models like the Galaxy S22 Ultra, it remains competitive but lacks some incremental improvements such as newer chipsets and software enhancements.
Pros & Cons: Pros Cons High-resolution, bright display with smooth 120Hz refresh rate. Large and heavy design may not suit all users. Versatile quad-camera system with excellent zoom capabilities. Battery life can be demanding with high refresh rate and display resolution. 5G connectivity for fast network speeds. Some users may find the software updates slower compared to newer models.Choosing a refurbished Samsung Galaxy S21 Ultra 5G supports sustainable consumption by extending the life of a premium device. Back Market ensures each pre-owned device undergoes thorough testing and quality checks to meet high standards. Learn more about our quality standards.


The best prices for high-quality reborn tech by sellers we’ve checked and vetted. We don’t mind if you Google us.
Get to know us