Galaxy A51 • Locked AT&TBlack • 128 GB • Physical SIM

(12 reviews)

$125.14

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Free delivery by Jun 16 - 17

Express delivery by Jun 15 - 16 from $15.00

Restored professionally

Based on up to 100 points of inspection

Customer reviews for Galaxy A51 • Locked AT&T

Overall rating

12 verified reviews

Rating details

Battery
4/5
Shipping
4.2/5
Lens & Camera
4.4/5
Accessories
4.1/5
Packaging
4.5/5
Overall performance
4.2/5
Appearance
4.2/5

Reviews

Barbara C.
Verified purchase
Reviewed 4/12/26, United States.
The A51 was described as a 'Locked At&t device". it turned out to be locked to some other network. I since have seen quite a few negative reviews for Koala Stash external to BackMarket . I had purchased 2 phones several years and another one with this A51. I am very happy with these other purchases.
Galaxy A51 128GB - Black - Locked AT&T
Galaxy A51 128GB - Black - 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
4/2/26
Lesa B.
Verified purchase
Reviewed 10/23/22, United States.
This phone saved my sanity. I was juggling my UK phone & a crappy US phone This is proof that using a Straight Talk/WalMart phone company shouldn't meet you have to settle for a bad phone or pay astronomical prices for a new one. Well done Back Market!
Galaxy A51 128GB - Black - Locked AT&T
Galaxy A51 128GB - Black - 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
10/11/22
Joshua N.
Verified purchase
Reviewed 8/24/22, United States.
The phone works great just didn't expect a crack to be in the middle of the screen. It said good condition was minor scratches and some wear from use but a crack is a little more than minor because the more you use the phone the bigger that crack gets.
Galaxy A51 128GB - Black - Locked AT&T
Galaxy A51 128GB - Black - 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
5/16/22
Tammy C.
Verified purchase
Reviewed 6/4/23, United States.
It's a nice phone, I am not so found of it yet, it is totally different than my last one. I am hoping it grows on me. I have been a motorola fan for years so this is taking some getting use to. The ease of ordering was great, phone is very nice.
Galaxy A51 128GB - Black - Locked AT&T
Galaxy A51 128GB - Black - 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
5/18/23
Jackson C.
Verified purchase
Reviewed 6/11/22, United States.
Super quick shipping, easy set up. This is the second product I've gotten off this site that I've been more than happy with. This is the only site I reccomend to others for electronics.
Galaxy A51 128GB - Black - Locked AT&T
Galaxy A51 128GB - Black - 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
6/2/22
Brittany F.
Verified purchase
Reviewed 4/24/22, United States.
Considering the condition said good, I was expecting g a few scratches.. when I got the phone, I seen absolutely no scratches whatsoever on it at all. Beautiful condition. Works great. Very much satisfied with my purchase. I have no regrets!
Galaxy A51 128GB - Black - Locked AT&T
Galaxy A51 128GB - Black - 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
3/19/22
Dorothy S.
Verified purchase
Reviewed 11/18/22, United States.
It is a great phone. Only 1 blemish and that was hidden by the phone protector. Love
Galaxy A51 64GB - Black - Locked AT&T
Galaxy A51 64GB - Black - 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
11/8/22

Everything you ever wanted to know about the Galaxy A51 • Locked AT&T

Durability
Overall performance
Camera
Screen quality

SM-S515DLMPN
128 GBStorage
Prism Crush BlackColor (official name)
Galaxy A51Model
Physical SIMSIM card
BlackColor
4 GBMemory (GB)
2019Release Year
0.67SAR body

The Samsung Galaxy A51 remains a practical mid-range smartphone since its release in December 2019. It offers a balanced combination of a large AMOLED display and versatile camera setup, making it suitable for everyday use despite being a few generations old.

Key features:

Release Date: December 2019
Display: 6.5-inch Super AMOLED, 1080 x 2400 pixels
Processor: Exynos 9611 Octa-core
Camera: Quad-camera system with 48MP main sensor, 12MP ultra-wide, 5MP macro, and 5MP depth sensor
Operating System: Ships with Android 10
Connectivity: 4G LTE support (Note: This model is locked to AT&T network)

Who is this for?

The Samsung Galaxy A51 suits users looking for a large, vibrant display and a versatile camera setup without requiring flagship-level performance. It is ideal for students, casual photographers, and everyday users who primarily use their phone for social media, video streaming, and photography. Compared to newer Galaxy models, the A51 may lack the latest processor speed and 5G connectivity but remains capable for most daily tasks.

Pros & Cons: Pros Cons Large and vibrant Super AMOLED display. Locked to AT&T network, limiting carrier flexibility. Versatile quad-camera system for varied photography needs. No native 5G support, which may affect future-proofing. Good performance for everyday tasks with Exynos 9611. Processor is mid-range and may struggle with intensive gaming or multitasking.
Why refurbished?

Choosing a refurbished Samsung Galaxy A51 supports sustainable consumption by extending the device’s lifecycle. Each pre-owned device from Back Market undergoes comprehensive testing to ensure functionality and reliability. Learn more about our quality standards.

MPN: SM-S515DL
Storage: 128 GB
Color (official name): Prism Crush Black
Model: Galaxy A51
SIM card: Physical SIM
Color: Black
Memory (GB): 4 GB
Release Year: 2019
SAR body: 0.67
Serie: Samsung Galaxy A
Foldable: No
Carrier compatibility: AT&T
Network: LTE
Screen size (inches): 6.5
Last OS Compatibility: No
Memory Card Slot: microSDXC
SAR head: 0.8
OS: Android
Main camera: 48 megapixels
Weight: 7 oz
Screen type: Super AMOLED
Manufacturer Ref.: S515DL
Front camera: 32 megapixels
Brand: Samsung
Resolution: 1080 x 2400

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Galaxy A51 • Locked AT&TBlack • 128 GB • Physical SIM

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Customer reviews for Galaxy A51 • Locked AT&T

Overall rating

Rating details

Reviews

Reviews

Barbara C.

Lesa B.

Joshua N.

Tammy C.

Jackson C.

Brittany F.

Dorothy S.

Popular searches

Everything you ever wanted to know about the Galaxy A51 • Locked AT&T

Durability

Overall performance

Camera

Screen quality

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