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More sustainable than new

Galaxy S21 5G 128GB - Black - Locked AT&T

$173.99
before trade-in
Save $234.30
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Free delivery by Jun 27 - Jun 30
Express delivery by Jun 26 - Jun 27 from $15.00

All devices are restored professionally based on a 25-point inspection

  • Buttons
  • SIM/memory card reader
  • Data deletion
  • Chargers/cables
  • Unlocked by previous owner
  • GPS/positioning system
  • Cameras
  • External sensors
  • Biometric sensors
  • Wi-Fi and Bluetooth
  • IMEI serial number
  • Water damage
  • Flash and indicator lights
  • Mics and speakers
  • Input and output ports
  • Phone carrier
  • Battery health
  • Mechanical parts
  • Parts compatibility
  • Screen
  • Other features specific to this device
Go unlimited for 20% less.
This phone comes with an offer for unlimited premium 5G data on Verizon’s network for $20/month for 2 years. That’s a total savings of $120 with no strings attached.

Terms apply

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Galaxy S21 5G 128GB - Black - Locked AT&T
Galaxy S21 5G • Locked AT&T
Good128 GBBlack
$173.99
before trade-in
Save $234.30

Proudly refurbished by GM DEALSUS

Free delivery by Jun 27 - Jun 30
Express delivery by Jun 26 - Jun 27 from $15.00

Comes with

Compatible charging cable

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Reborn vs. brand new

Here’s what you help prevent on average by choosing a reborn smartphone over a brand new one.

171.1 lbs of CO2e

That's like driving an SUV from NYC to Chicago.

6.3 oz of e-waste

That’s around the weight of a baseball.

537.1 lbs of raw materials

That's like 20 dogs digging in your yard for a week.

20,341.2 gallons of water

That's like running a faucet for 3 days

Everything you ever wanted to know about the Galaxy S21 5G 128GB - Black - Locked AT&T

  • BlackColor

  • 6.2Screen size (inches)

  • Galaxy S21 5GModel

  • AndroidOS

  • 1080 x 2400Resolution

  • AT&TCarrier compatibility

  • 128 GBStorage

  • 8 GBMemory

  • Dynamic AMOLED 2XScreen type

The Galaxy S21 5G is a flagship-level smartphone that was released in early 2021. It offers a balance of performance, 5G connectivity, and a versatile camera system. This model is locked to AT&T and comes with 128GB of storage, making it suitable for everyday use, multimedia consumption, and light gaming.

Key features:
  • Display: 6.2-inch Dynamic AMOLED 2X with FHD+ resolution
  • Processor: Exynos 2100 (Global) or Snapdragon 888 (USA)
  • Camera: Triple rear cameras with 12MP wide, 12MP ultra-wide, and 64MP telephoto lenses
  • Connectivity: 5G capable for faster data speeds
  • Operating System: Ships with Android 11, upgradable to newer versions
Who is this for?

The Galaxy S21 5G is ideal for users seeking a premium Android device with 5G connectivity, good camera versatility, and a compact design. It’s suited for those who prefer a locked device for use on AT&T’s network or want a reliable pre-owned device for everyday tasks.

Pros & Cons:
Pros Cons
High-quality display with vibrant colors and smooth refresh rate. Locked to AT&T, limiting carrier flexibility.
Powerful Snapdragon 888 processor for daily multitasking. No expandable storage option.
Excellent camera system for versatile photography. Battery life may vary depending on usage.

Why refurbished?

Opting for a refurbished Galaxy S21 5G allows you to enjoy a high-end device at a more accessible price point. Each device from Back Market undergoes rigorous testing and quality checks to ensure reliable performance. Learn more about our quality standards.

Galaxy S21 5G 128GB - Black - Locked AT&T
ColorBlack
Screen size (inches)6.2
ModelGalaxy S21 5G
OSAndroid
Resolution1080 x 2400
Carrier compatibilityAT&T
Storage128 GB
Memory8 GB
Screen typeDynamic AMOLED 2X
Network5G
Manufacturer Ref.SM-G991U
Memory Card SlotNo
Verizon compatibleNo
AT&T compatibleYes
T-Mobile compatibleNo
Release Year2021
Last OS CompatibilityYes
FoldableNo
Front camera10 megapixels
SAR head0.74
SeriesSamsung Galaxy S
SIM cardPhysical SIM + eSIM
Retro techNo
Main camera12 megapixels
Color (official name)Black
Company nameSamsung Electronics
Company email addresssupport@samsung.com
Company postal addressSamsung House, 1000 Hillswood Drive, Chertsey, Surrey, KT16 0PS, UK
BrandSamsung
Weight6 oz

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