Galaxy S21 FE 5G • Locked AT&TGray • 128 GB • Physical SIM

(31 reviews)

$132.00

Save $567.99

Free delivery by Jun 11 - 12

Express delivery by Jun 10 - 11 from $15.00

Restored professionally

Based on up to 100 points of inspection

Customer reviews for Galaxy S21 FE 5G • Locked AT&T

Overall rating

31 verified reviews

Rating details

Battery
4.7/5
Shipping
4.7/5
Lens & Camera
4.9/5
Accessories
4.7/5
Packaging
4.7/5
Overall performance
4.3/5
Appearance
4.7/5

Reviews

Jeffery C.
Verified purchase
Reviewed 1/25/26, United States.
They delivered the phones sooner then estimated which was awesome the shipping information never updated so had no clue to when it arrive until the package w delivered. Both phones were in pristine condition next time I'll need a phone I'll use back market again.
Galaxy S21 FE 5G 128GB - Gray - Locked AT&T
Galaxy S21 FE 5G 128GB - Gray - Locked AT&T
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
12/17/25
Torry J.
Verified purchase
Reviewed 7/15/25, United States.
I got the phone in excellent condition, and I’m genuinely impressed. The shipping experience was solid — it arrived even before the estimated delivery time. I highly recommend buying from Back Market, especially for refurbished phones. They offer great deals and, most importantly, have strict policies to ensure customer satisfaction. Definitely a 100% recommendation.
Galaxy S21 FE 5G 128GB - Gray - Locked AT&T
Galaxy S21 FE 5G 128GB - Gray - Locked AT&T
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
7/10/25
Michael P.
Verified purchase
Reviewed 12/13/25, United States.
The device is exactly as described.
Galaxy S21 FE 5G 128GB - Gray - Locked AT&T
Galaxy S21 FE 5G 128GB - Gray - Locked AT&T
Condition
Good
Light signs of wear. The body may have light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
12/11/25
Jenni R.
Verified purchase
Reviewed 11/26/24, United States.
I ordered 2 phones for my husband and I and both came in excellent condition and both locked to AT & T, which I was worried about, because we got an unlocked phone before that wouldn't work with our network, but these worked right out of the box, and flawlessly I may add! We are extremely happy with our purchase and will definitely buy again!!
Galaxy S21 FE 5G 128GB - Gray - Locked AT&T
Galaxy S21 FE 5G 128GB - Gray - Locked AT&T
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
11/9/24
Blake S.
Verified purchase
Reviewed 12/3/24, United States.
I bought an excellent S21 FE from Cellular Gallery Inc. and am pretty disappointed in them. In all, it took over three weeks of waiting between a shipment not sent to a rough-looking phone with a nonfunctioning display to have them finally decide to give me a refund. If you have the time and money to wait, I suppose you can buy from here if it's a good deal, but overall having to work through the process with Back Market was long, not fun, and something I certainly wouldn't suggest compared to Amazon or Samsung refurbished. But hey, after wasting three weeks of my time, they gave me a 5% discount to spend on the now 40% higher-priced phone.
Galaxy S21 FE 5G 128GB - Gray - Locked AT&T
Galaxy S21 FE 5G 128GB - Gray - Locked AT&T
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
11/10/24
Coy L.
Verified purchase
Reviewed 6/18/24, United States.
Great phone for an awesome price. Other than minimum scratches on back of phone it looks brand new and perform like new. I have bought several phones from here for my family over the years and will continue to do so.
Galaxy S21 FE 5G 128GB - Gray - Locked AT&T
Galaxy S21 FE 5G 128GB - Gray - Locked AT&T
Condition
Good
Light signs of wear. The body may have light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
6/3/24
Della A.
Verified purchase
Reviewed 3/17/24, United States.
My 3rd purchase from backmarket. Got an iPad, my last phone (dropped and broke the screen) Again I couldn't be happier with the quality & deal I got om this Samsung. It cost the same to upgrade my Samsung as it would to replace the OEM screen. I'm using it now to leave this review. No signs of wear on the device at all and battery life is great. Anytime i hear of someone shopping for tech, I recommend this site. It's great for newer models and phenomenal when your looking to purchase for your kids,etc. Ill be back to upgrade my daughter's phone.
Galaxy S21 FE 5G 128GB - Green - Locked AT&T
Galaxy S21 FE 5G 128GB - Green - Locked AT&T
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
3/2/24

Everything you ever wanted to know about the Galaxy S21 FE 5G • Locked AT&T

Durability
Overall performance
Camera
Screen quality

SM-G990UZAAXAUMPN
NoFoldable
6.4Screen size (inches)
0.77SAR head
6 GBMemory (GB)
5GNetwork
GrayColor
YesLast OS Compatibility
1080 x 2340Resolution

The Galaxy S21 FE 5G is a mid-range flagship from Samsung, offering a balance of performance and features. This model, with 128GB of storage, is suitable for users who need a reliable 5G-capable smartphone for everyday tasks. It is a locked AT&T version, so it is compatible with AT&T networks and carriers that support the same bands.

Key features:

Model: Galaxy S21 FE 5G
Display: 6.4-inch Dynamic AMOLED 2X with FHD+ resolution
Processor: Snapdragon 888 or Exynos 2100 (region-dependent)
Camera: Triple rear cameras with 12MP main sensor, ultra-wide, and telephoto lenses
Connectivity: 5G capable for fast data speeds

Who is this for?

The Galaxy S21 FE 5G is ideal for users seeking a versatile and powerful device for streaming, social media, and multitasking. It’s well-suited for those who prefer a compact design with flagship-level performance, especially if they are locked into AT&T’s network.

Pros & Cons: Pros Cons Vibrant display with high refresh rate for smooth visuals. Locked to AT&T, limiting carrier flexibility. Powerful Snapdragon 888 processor. No expandable storage slot. Good camera system for photos and videos. Battery life may vary based on usage. Why refurbished?

Opting for a refurbished Galaxy S21 FE 5G provides a cost-effective way to access a high-performance smartphone. Back Market’s devices undergo rigorous testing to meet quality standards, ensuring a reliable experience. Learn more about our quality standards.

MPN: SM-G990UZAAXAU
Foldable: No
Screen size (inches): 6.4
SAR head: 0.77
Memory (GB): 6 GB
Network: 5G
Color: Gray
Last OS Compatibility: Yes
Resolution: 1080 x 2340
Front camera: 32 megapixels
OS: Android
Screen type: Dynamic AMOLED 2X
Manufacturer Ref.: SM-G990U
Model: Galaxy S21 FE 5G
Memory Card Slot: No
Release Year: 2022
Brand: Samsung
Serie: Samsung Galaxy S
Main camera: 12 megapixels
SAR body: 0.90
Color (official name): Graphite
Carrier compatibility: AT&T
SIM card: Physical SIM
Weight: 7 oz
Storage: 128 GB

Choose location

Suggested searches

Popular searches

Galaxy S21 FE 5G • Locked AT&TGray • 128 GB • Physical SIM

Galaxy S21 FE 5G • Locked AT&TGray • 128 GB • Physical SIM

Restored professionally

Comes with

Often bought together

Customer reviews for Galaxy S21 FE 5G • Locked AT&T

Overall rating

Rating details

Reviews

Reviews

Jeffery C.

Torry J.

Michael P.

Jenni R.

Blake S.

Coy L.

Della A.

Popular searches

Everything you ever wanted to know about the Galaxy S21 FE 5G • Locked AT&T

Durability

Overall performance

Camera

Screen quality

Related articles

Android Phone Activation Guide | eSIM or SIM | Back Market

How to factory reset an Android phone (4 quick scenarios) | Back Market

iPhone vs. Android: Which OS is Right for You? | Back Market

Can you use a Galaxy watch with an iPhone? | Back Market

Best smartwatch for Android: The only guide you need | Back Market

Why is my phone screen black? Fixing guide | Back Market

Understanding prepaid phones and how they work | Back Market

Welcome to Back Market