Galaxy S21 Ultra 5G • Locked VerizonBlack • 128 GB • Physical SIM + eSIM
(41 reviews)
$374.00
Save $1,126.00
Free delivery by Aug 5 - 6
Express delivery by Aug 4 - 5 from $15.00
United States
English (US)
All guaranteed 100% functional








Compatible charging cable

Refurbished price:$374.00
$1,500.00 newVersus $1,500.00 new
Battery
4.3/5
Shipping
4.3/5
Lens & Camera
4.5/5
Accessories
4.1/5
Packaging
4.4/5
Overall performance
4.5/5
Appearance
4.4/5
Reviewed 11/23/24, United States.
I ordered the S21 Ultra in the GOOD condition and as far as body work, there were like 2 small scratches that were not noticeable at all at first glance. The screen is flawless. For the price, I am beyond satisfied. I ordered it on a Thursday and it was delivered Saturday at 10am. I received constant communication and updates from Back Market. 5 stars all the way around.
Galaxy S21 Ultra 5G 128GB - Silver - Locked Verizon
Galaxy S21 Ultra 5G 128GB - Silver - Locked Verizon
Condition
Good
Purchased
11/21/24
Reviewed 2/25/24, United States.
I have purchased my last new phone. My last two phones have been purchased through Back Market and I couldn't be more satisfied with my experiences! In the past I went with an unlocked phone. However, this time I knew the carrier that has the best coverage in my area, so I went with one locked to that provider. This saved me some over the unlocked version. Additionally, in the past I went with one in "Excellent" condition. This time, the best value at the time was for one in "Good" condition. I thought I might regret it, but the savings at the time were enough to sway me. I have zero regrets! The phone is in great shape! The battery life also has exceeded my expectations! And the camera is exactly what I hoped it would be! At whatever point in the future I feel a need to get a different phone, I already know that it will be one from Back Market!
Galaxy S21 Ultra 5G 128GB - Black - Locked Verizon
Galaxy S21 Ultra 5G 128GB - Black - Locked Verizon
Condition
Excellent
Purchased
2/9/24
Reviewed 3/12/24, United States.
the delivery was really bad. my order was not been delivered and was showing only to pickup from nearest cvs.i waited 4 days to get it delivered but the site is showing if not been pickedup it will get returned at the end i need to book a cab to pick the order. the delivery services they use are really bad. i hate ups
Galaxy S21 Ultra 5G 128GB - Black - Locked Verizon
Galaxy S21 Ultra 5G 128GB - Black - Locked Verizon
Condition
Fair
Purchased
3/3/24
Reviewed 3/24/25, United States.
Great phone and condition
Galaxy S21 Ultra 5G 128GB - Silver - Locked Verizon
Galaxy S21 Ultra 5G 128GB - Silver - Locked Verizon
Condition
Good
Purchased
3/6/25
Reviewed 3/25/24, United States.
great selection and good deal.... backed by back market definitely would recommend.
Galaxy S21 Ultra 5G 512GB - Black - Locked Verizon
Galaxy S21 Ultra 5G 512GB - Black - Locked Verizon
Condition
Excellent
Purchased
3/19/24
Reviewed 4/11/24, United States.
For a fair phone it looks pretty dang new, I love it.
Galaxy S21 Ultra 5G 128GB - Black - Locked Verizon
Galaxy S21 Ultra 5G 128GB - Black - Locked Verizon
Condition
Fair
Purchased
3/29/24
Reviewed 10/16/23, United States.
My first experience with Back Market and I definitely enjoyed it. Phone was in excellent condition
Galaxy S21 Ultra 5G 256GB - Black - Locked Verizon
Galaxy S21 Ultra 5G 256GB - Black - Locked Verizon
Condition
Good
Purchased
10/3/23
108 megapixelsMain camera
Dynamic AMOLED 2XScreen type
2021Release Year
SamsungBrand
8 ozWeight
BlackColor
USB-CConnector
1440 x 3200Resolution
0.77SAR head
The Samsung Galaxy S21 Ultra 5G remains a strong contender in the flagship smartphone category despite being released in early 2021. Known for its large, vibrant display and versatile camera system, this model is well-suited for users who prioritize multimedia consumption and photography.
Key features:The Galaxy S21 Ultra 5G is ideal for power users, photographers, and multimedia enthusiasts who want a large, high-resolution screen with smooth scrolling thanks to its 120Hz refresh rate. It suits professionals and tech-savvy users who require robust performance and versatile camera capabilities. Compared to newer models like the Galaxy S22 Ultra, it offers similar core features but may lack the latest software refinements and camera improvements.
Pros & Cons: Pros Cons Large, vibrant 6.8-inch AMOLED display with smooth 120Hz refresh rate. Bulky and heavy compared to smaller smartphones. Versatile quad-camera system including dual telephoto lenses for zoom flexibility. May not receive as many future software updates as newer models. 5G connectivity for fast network speeds. Locked to Verizon, limiting carrier flexibility.Choosing a refurbished Samsung Galaxy S21 Ultra 5G supports a more sustainable approach to technology by extending the device’s lifecycle. Each pre-owned device on Back Market undergoes thorough testing and certification to ensure it meets quality standards. Learn more about our quality standards.





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