Galaxy S21 5G • Locked AT&TGray • 256 GB • Physical SIM + eSIM

(26 reviews)

$149.95

Save $699.05

Free delivery by Jun 9 - 10

Express delivery by Jun 8 - 9 from $10.00

Restored professionally

Based on up to 100 points of inspection

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

Overall rating

26 verified reviews

Rating details

Battery
3.7/5
Shipping
4.1/5
Lens & Camera
4.2/5
Accessories
3.6/5
Packaging
4.2/5
Overall performance
3.8/5
Appearance
4/5

Reviews

Wynne C.
Verified purchase
Reviewed 3/18/26, United States.
Excellent work from the seller "Dynamic IT Hardware". I received my phone in great condition. You could easily convince someone it was brand new just but looking at the hardware. The phone was also very safely and securely packaged which is a great sign. The only negative things I have to say is about the Back Market site. This was my first experience here and it was honestly horrible. The only good thing I have to say about this site is that the user interface is really good and easy to navigate. From the moment I started my checkout the problems began and I wont waste your time with all the details. But it is also worth it to mention that their customer service team does reply and try to help you thru your issue. And they were respectful to me even when I was getting upset and frustrated. So Back Market was professional on that front So overall the seller "Dynamic IT Hardware" gets a 5/5 score, but Back Market as a website would honestly get a 2/5.
Galaxy S21 5G 128GB - Gray - Locked AT&T
Galaxy S21 5G 128GB - Gray - Locked AT&T
Condition
Fair
Signs of wear. The body may have a few visible scratches and dents. Items with screens may have light scratches.
Purchased
3/13/26
Morgan S.
Verified purchase
Reviewed 1/27/24, United States.
I am totally in love with my new phone! I have gotten 3 phones now from back market and I love them so much! I always recommend back market to everyone!!!
Galaxy S21 5G 128GB - Purple - Locked AT&T
Galaxy S21 5G 128GB - Purple - Locked AT&T
Condition
Fair
Signs of wear. The body may have a few visible scratches and dents. Items with screens may have light scratches.
Purchased
1/25/24
Oksana K.
Verified purchase
Reviewed 12/27/24, United States.
really good, but I picked the excellent condition for it and had hit marks as if it was dropped and not repaired very good but if you want a 100% geranty that it's gonna be good get premium condition 👍👍👍👍👍👍👍
Galaxy S21 5G 128GB - Gray - Locked AT&T
Galaxy S21 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
12/23/24
Molly P.
Verified purchase
Reviewed 8/20/23, United States.
Phone is perfect, the only issued I had was that it was shipped with an aftermarket charger that didn't work with the device. Any easy fix and was still cheaper than new.
Galaxy S21 5G 128GB - Purple - Locked AT&T
Galaxy S21 5G 128GB - Purple - Locked AT&T
Condition
Fair
Signs of wear. The body may have a few visible scratches and dents. Items with screens may have light scratches.
Purchased
7/31/23
Moises V.
Verified purchase
Reviewed 1/16/25, United States.
I would start with check your information of your phone I was sent the s21 FE witch is not at all the s21 and the quality is really far from s21 I wouldn't have bought the FE version and what crazy is doesn't at all display any information of it being a FE literally says s21 5g locked AT&T I really was let down and gonna make a complaint I wait whole week to just get played I don't see how they thought they can get threw selling me The FE .
Galaxy S21 5G 128GB - Gray - Locked AT&T
Galaxy S21 5G 128GB - Gray - Locked AT&T
Condition
Fair
Signs of wear. The body may have a few visible scratches and dents. Items with screens may have light scratches.
Purchased
1/14/25
Kenesha L.
Verified purchase
Reviewed 1/12/25, United States.
Works like a charm. My 5th time buying a phone from here. Always a positive experience.
Galaxy S21 5G 128GB - Gray - Locked AT&T
Galaxy S21 5G 128GB - Gray - Locked AT&T
Condition
Fair
Signs of wear. The body may have a few visible scratches and dents. Items with screens may have light scratches.
Purchased
12/30/24
Adriana M.
Verified purchase
Reviewed 7/11/23, United States.
I love my phone now. The only thing I wish the website would show is why they rate the phone "fair, good, ans excellent" quality. I wasn't really sure how to expect the phone. I got good condition and it has scratches but I still love it.
Galaxy S21 5G 128GB - Purple - Locked AT&T
Galaxy S21 5G 128GB - Purple - 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
7/4/23

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

Durability
Overall performance
Camera
Screen quality

GrayColor
AT&TCarrier compatibility
NoMemory Card Slot
SM-G991UManufacturer Ref.
0.74SAR head
NoFoldable
YesLast OS Compatibility
256 GBStorage
AndroidOS

The Samsung Galaxy S21 5G is a flagship smartphone released in early 2021 that continues to deliver solid performance and a versatile camera system. Although it is now over three years old, it remains a relevant choice for users who want a capable device with a high-quality display and 5G connectivity.

Key features:

Release Date: January 2021
Display: 6.2-inch Dynamic AMOLED 2X, FHD+ resolution, 120Hz refresh rate
Processor: Exynos 2100 (global) or Snapdragon 888 (USA)
Camera: Triple rear cameras: 12MP wide, 64MP telephoto, 12MP ultrawide
Connectivity: 5G compatible for faster network speeds
Operating System: Ships with Android 11, upgradable to newer versions

Who is this for?

The Samsung Galaxy S21 5G suits users looking for a compact flagship with a vibrant display and versatile camera setup. It is ideal for professionals and everyday users who want reliable performance and 5G support without the bulk of larger devices. Compared to newer models like the Galaxy S22, it offers a similar core experience but may lack some latest software enhancements and camera improvements.

Pros & Cons: Pros Cons High-refresh-rate AMOLED display for smooth visuals. Limited expandable storage, no microSD slot. Versatile triple-camera system with telephoto zoom. No charger included in the box. Compact and lightweight design for easy handling. Locked to AT&T 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 is thoroughly inspected and tested to meet strict quality standards. Learn more about our quality standards.

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

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

Overall rating

Rating details

Reviews

Reviews

Wynne C.

Morgan S.

Oksana K.

Molly P.

Moises V.

Kenesha L.

Adriana M.

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

Durability

Overall performance

Camera

Screen quality

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