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Galaxy S23 256GB - Black - Locked AT&T

$316.99
before trade-in
Save $594.00

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Buy now, pay later.

Free delivery by Jun 24 - Jun 25
Express delivery by Jun 23 - Jun 24 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

Visible partnered with Back Market

Tadaaa

Galaxy S23 256GB - Black - Locked AT&T
Galaxy S23 • Locked AT&T
Fair256 GBBlack
$316.99
before trade-in
Save $594.00

Proudly refurbished by GM DEALSUS

Free delivery by Jun 24 - Jun 25
Express delivery by Jun 23 - Jun 24 from $15.00

Comes with

Compatible charging cable

Galaxy S23 256GB - Black - Locked AT&T's customer reviews

6 verified reviews in the last 24 months.

  • G

    Glenn R.

    Purchased on August 21, 2023

    Verified purchase

    (Note: The condition of this phone was listed as "excellent" in my original order, not "very good." My review is based on the original description). This is my second BackMarket purchase (previous one for an S22 for a relative). That experience was positive and was a factor in making another phone purchase, this time for myself. As previously, the search and purchase process was very easy. The phone was delivered very quickly and just as-described: in excellent condition with no noticeable scratches or cracks. With a little assistance from AT&T, I was able to swap my existing SIM card and then used Samsung Smart Switch to migrate all my existing phone data to the new one in about an hour. I've been using the S23 for about a week and no issues at all. I'm very pleased with the whole experience at BackMarket and would trust them for any future support and purchases.

    Reviewed in the United States on September 4, 2023

  • J

    Jeff K.

    Purchased on March 8, 2024

    Verified purchase

    Perfect out of the box. Set up was a snap and knowing customer service was available if needed, was nice. This is our 4th purchase from Back Market and each transaction has been perfect!

    Reviewed in the United States on March 25, 2024

  • D

    David D.

    Purchased on March 22, 2025

    Verified purchase

    great phone, as advertised. repeat backmarket buyer

    Reviewed in the United States on April 6, 2025

  • C

    Connie E.

    Purchased on May 14, 2024

    Verified purchase

    Very happy with my purchase!!

    Reviewed in the United States on May 26, 2024

  • Q

    Quintrell O.

    Purchased on June 16, 2023

    Verified purchase

    it came as expected

    Reviewed in the United States on June 20, 2023

  • D

    Daniel M.

    Purchased on August 1, 2024

    Verified purchase

    Phone never showed up. When I asked for updated info on the status of my phone two days after the expected delivery date, I wasn't given any information. I was sent a message stating that I would be refunded. There was no explanation as to what happened.

    Reviewed in the United States on August 10, 2024

See all 6 reviews

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 S23 256GB - Black - Locked AT&T

  • BlackColor

  • 6.1Screen size (inches)

  • Galaxy S23Model

  • AndroidOS

  • 1080 x 2340Resolution

  • AT&TCarrier compatibility

  • 256 GBStorage

  • 8 GBMemory

  • Dynamic AMOLED 2XScreen type

50MP camera for high-resolution stunners

Our fastest mobile processor yet

Enhanced low-light selfies

Made with eco-conscious materials

Designed with the planet in mind

Crafted in part with recycled glass and ocean-bound plastic, each phone is packaged in a box made of recycled materials.

Seize the day and capture the night. Head out with a camera that's equipped with a high-resolution sensor and intelligent, light-absorbing pixels — delivering clear pics at any hour.

More light for your night

Get ready for a Gallery full of epic night shots everyone will want. Nightography's enhanced AI keeps details clear, so low-light photos and videos stay bright and colorful, dusk to dawn.

Get all the details

The 50MP Wide-Angle Camera works hand-in-hand with a powerful processor, rapidly combining frames to extract bits from each into a single hi-res photo. Add in Detail Enhancer technology and you've got quality so sharp, you'll keep zooming in for more.

More power to you

When pausing is not an option, this high-performance processor levels up your gaming with impressive battery life.

Game on like a legend with a long-lasting and fast-charging battery.

Game or stream anywhere with adaptive visibility delivering optimal color and brightness, in any light. Adaptive 120Hz smooths the scroll, while Eye Comfort Shield keeps your eyes from getting tired, even as you view in the dark.

Power through your workday with our fastest mobile processor ever.

Galaxy S23 256GB - Black - Locked AT&T
ColorBlack
Screen size (inches)6.1
ModelGalaxy S23
OSAndroid
Resolution1080 x 2340
Carrier compatibilityAT&T
Storage256 GB
Memory8 GB
Screen typeDynamic AMOLED 2X
Network5G
Manufacturer Ref.SM-S911U
Memory Card SlotNo
Verizon compatibleNo
AT&T compatibleYes
T-Mobile compatibleNo
Release Year2023
Last OS CompatibilityYes
FoldableNo
Front camera12 megapixels
SAR head0.95
SAR body0.88
SeriesSamsung Galaxy S
SIM cardPhysical SIM + eSIM
Retro techNo
Main camera50 megapixels
Color (official name)Phantom Black
Company nameSamsung Electronics
Company email addresssupport@samsung.com
Company postal addressSamsung House, 1000 Hillswood Drive, Chertsey, Surrey, KT16 0PS, UK
BrandSamsung
Weight168 oz

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