Galaxy S21 5G • Locked T-MobileGray • 256 GB • Physical SIM + eSIM

(99 reviews)

$259.00

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Free delivery by Jun 18 - 22

Express delivery by Jun 17 - 18 from $9.95

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Based on up to 100 points of inspection

Customer reviews for Galaxy S21 5G • Locked T-Mobile

Overall rating

99 verified reviews

Rating details

Battery
4.1/5
Shipping
4.5/5
Lens & Camera
4.4/5
Accessories
4/5
Packaging
4.3/5
Overall performance
4.1/5
Appearance
4.3/5

Reviews

Isaiah D.
Verified purchase
Reviewed 6/4/25, United States.
It was at a great price as you have to watch every day almost every hour for a price change and when it does you better get it quick because for the price and what it looks like makes it worth the wait on back market as it worked well with no scratches
Galaxy S21 5G 256GB - Gray - Locked T-Mobile
Galaxy S21 5G 256GB - Gray - Locked T-Mobile
Condition
Good
Light signs of wear. The body may have light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
5/17/25
Andre P.
Verified purchase
Reviewed 12/10/23, United States.
I recently snagged the Samsung Galaxy S21 5G from Back Market, and it's been a game-changer. This refurbished gem looks and feels brand new, and I couldn't be happier with the experience.
Galaxy S21 5G 128GB - White - Locked T-Mobile
Galaxy S21 5G 128GB - White - Locked T-Mobile
Condition
Excellent
Almost no signs of wear. The body may have very light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
11/27/23
Patricia P.
Verified purchase
Reviewed 4/5/25, United States.
Always feels good to buy a refurbished product that's been given new life vs a new one. The phone itself is great, but the battery life is less than average. Otherwise no complaints.
Galaxy S21 5G 128GB - Purple - Locked T-Mobile
Galaxy S21 5G 128GB - Purple - Locked T-Mobile
Condition
Fair
Signs of wear. The body may have a few visible scratches and dents. Items with screens may have light scratches.
Purchased
3/6/25
Lori F.
Verified purchase
Reviewed 2/25/24, United States.
Great device. Better condition than expected. Was able to get desired color and price was a wonderful. It also arrived three days earlier than expected. Great variety of choices and prices for all budgets. Highly recommend!!!! Thanks so much... this girl it very happy with her device and
Galaxy S21 5G 128GB - Purple - Locked T-Mobile
Galaxy S21 5G 128GB - Purple - Locked T-Mobile
Condition
Good
Light signs of wear. The body may have light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
2/17/24
Russ M.
Verified purchase
Reviewed 6/1/26, United States.
no issues
Galaxy S21 5G 128GB - Gray - Locked T-Mobile
Galaxy S21 5G 128GB - Gray - Locked T-Mobile
Condition
Good
Light signs of wear. The body may have light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
5/20/26
Trendon D.
Verified purchase
Reviewed 8/22/23, United States.
I got a quality phone (Galaxy S21 5G) in like-new condition for a KILLER price! It arrived quickly. No complaints!
Galaxy S21 5G 128GB - Gray - Locked T-Mobile
Galaxy S21 5G 128GB - Gray - Locked T-Mobile
Condition
Excellent
Almost no signs of wear. The body may have very light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
7/16/23
Gale K.
Verified purchase
Reviewed 7/2/23, United States.
Phone is a described which is excellent condition. I have switched everything over from my S8 and all is working perfectly. I was very skeptical about refurbished but after doing some research I decided to order. I am very happy with my phone and will look for other refurbed items.
Galaxy S21 5G 128GB - Pink - Locked T-Mobile
Galaxy S21 5G 128GB - Pink - Locked T-Mobile
Condition
Excellent
Almost no signs of wear. The body may have very light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
6/22/23

Everything you ever wanted to know about the Galaxy S21 5G • Locked T-Mobile

Durability
Overall performance
Camera
Screen quality

12 megapixelsMain camera
Phantom GrayColor (official name)
1080 x 2400Resolution
GrayColor
0.74SAR head
256 GBStorage
8 GBMemory (GB)
NoFoldable
2021Release Year

The Samsung Galaxy S21 5G remains a solid choice in Samsung’s flagship lineup, offering a balanced mix of performance and features. Released in early 2021, this model introduced a refreshed design and reliable hardware that continues to meet the needs of many users today.

Key features:

Release Date: January 2021
Display: 6.2-inch Dynamic AMOLED 2X, FHD+ resolution, 120Hz refresh rate
Processor: Exynos 2100 (Global) / Snapdragon 888 (USA)
Camera: Triple rear cameras with 12MP wide, 64MP telephoto, and 12MP ultrawide lenses
Connectivity: 5G compatible for fast network speeds
Operating System: Ships with Android 11 and One UI 3.1

Who is this for?

The Samsung Galaxy S21 5G is well suited for users who want a compact flagship device with a high-quality display and versatile camera setup. It fits the needs of professionals and everyday users who require solid performance and 5G connectivity without the bulk of larger phones. Compared to newer models like the Galaxy S22, it offers many core features but lacks some incremental improvements such as enhanced camera software and slightly better battery efficiency.

Pros & Cons: Pros Cons Compact 6.2-inch AMOLED display with 120Hz refresh rate. No microSD card slot for expandable storage. Versatile triple-camera system including telephoto lens. Ships with Android 11, may require updates for latest features. 5G connectivity for faster network speeds. Locked to T-Mobile network, limiting carrier flexibility.
Why refurbished?

Choosing a refurbished Samsung Galaxy S21 5G is an eco-conscious decision that extends the life of a high-quality device. Back Market ensures each pre-owned device undergoes comprehensive testing to meet strict quality standards. Learn more about our quality standards.

Main camera: 12 megapixels
Color (official name): Phantom Gray
Resolution: 1080 x 2400
Color: Gray
SAR head: 0.74
Storage: 256 GB
Memory (GB): 8 GB
Foldable: No
Release Year: 2021
Network: 5G
Memory Card Slot: No
Screen size (inches): 6.2
Last OS Compatibility: Yes
OS: Android
Manufacturer Ref.: SM-G991U
SIM card: Physical SIM + eSIM
Brand: Samsung
Weight: 6 oz
Carrier compatibility: T-Mobile
SAR body: 1.08
Screen type: Dynamic AMOLED 2X
Model: Galaxy S21 5G
Serie: Samsung Galaxy S
Front camera: 10 megapixels
Connector: USB-C

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Customer reviews for Galaxy S21 5G • Locked T-Mobile

Overall rating

Rating details

Reviews

Reviews

Isaiah D.

Andre P.

Patricia P.

Lori F.

Russ M.

Trendon D.

Gale K.

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Everything you ever wanted to know about the Galaxy S21 5G • Locked T-Mobile

Durability

Overall performance

Camera

Screen quality

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