Price drop

Galaxy S23 Ultra • Locked AT&TBlack • 256 GB • Physical SIM + eSIM

(20 reviews)

Deals available

See limited deals and price drops

$239

Save $20.95

Last lowest price : $389.95

Price drop

Galaxy S23 Ultra • Locked AT&TBlack • 256 GB • Physical SIM + eSIM

(20 reviews)

Deals available

See limited deals and price drops

$239

Save $20.95

Last lowest price : $389.95

Free standard shipping

Express shipping: $15.00. Delivery estimates are shown at checkout when available.

Restored professionally

Based on up to 100 points of inspection

Customer reviews for Galaxy S23 Ultra • Locked AT&T

Overall rating

20 verified reviews

Rating details

Battery
4.8/5
Shipping
4.4/5
Lens & Camera
4.8/5
Accessories
4.3/5
Packaging
4.5/5
Overall performance
4.8/5
Appearance
4.5/5

Reviews

Sheashea L.
Verified purchase
Reviewed 10/26/25, United States.
10/10! Unbelievable that the phone I received is a "refurbished Locked Samsung Galaxy s23 Ultra Green, Fair condition" for a third of the price that a new one is priced at at a carrier's in store or online!!! This is cell phone purchase #2 with RefurbLane for me and I couldn't be a happier customer than I am with my RefurbLane experiences all around!!! I recommend RefurbLane to any and everyone that is looking for electronics new and upgrading!! Also, the extra protection plan(s) and extensions they offer are a must as well as a plus!! I highly recommend that anyone who is purchasing a product and is offered the protection insurance and the extensions for them, fork out the extra $$ and buy them, they are well worth the extra funds and they are the very best!! Thank you so very much RefurbLane and Bolt Protection for everything!! I'm 100% a Lifetime customer of RefurbLane....You're the BEST!!!!
Galaxy S23 Ultra 256GB - Green - Locked AT&T
Galaxy S23 Ultra 256GB - Green - Locked AT&T
Condition
Fair
Purchased
10/23/25
Jenny Z.
Verified purchase
Reviewed 9/3/26, United States.
very nice!! the phone came super quick (it took around only 2 days with standard delivery yay) and it’s really good quality considering the lower price. i lowkey wasn’t sure if this website/app was legit but no issues here! i’ll definitely come back if i end up looking for another device 😈😈
Galaxy S23 Ultra 256GB - Green - Locked AT&T
Galaxy S23 Ultra 256GB - Green - Locked AT&T
Condition
Good
Purchased
8/3/26
Howard B.
Verified purchase
Reviewed 7/6/25, United States.
Love the phone and it works perfectly other than it might have been an aftermarket screen and finger print reader doesn't work the best but it doesn't bother me the phone is amazing and an amazing price.
Galaxy S23 Ultra 256GB - Black - Locked AT&T
Galaxy S23 Ultra 256GB - Black - Locked AT&T
Condition
Excellent
Purchased
6/25/25
Jim D.
Verified purchase
Reviewed 9/16/26, United States.
Everything was good except I'm a little concerned about the condition of the device. I paid for "good", but I may have received "fair". Hence the 4 star rating. This is my 3rd time ordering and other 2 were great experiences.
Galaxy S23 Ultra 512GB - Black - Locked AT&T
Galaxy S23 Ultra 512GB - Black - Locked AT&T
Condition
Good
Purchased
9/3/26
Jenise S.
Verified purchase
Reviewed 3/24/25, United States.
Phone came super early. The package was in mint condition (not crushed like other stuff I get from fedex). The screen was scratched, but for an "acceptable" phone, there wasn't much damaged. Everything works perfectly 👍
Galaxy S23 Ultra 256GB - Black - Locked AT&T
Galaxy S23 Ultra 256GB - Black - Locked AT&T
Condition
Fair
Purchased
3/7/25
Eric O.
Verified purchase
Reviewed 9/1/25, United States.
great phone at a good price . came in just like new. very happy.
Galaxy S23 Ultra 256GB - Green - Locked AT&T
Galaxy S23 Ultra 256GB - Green - Locked AT&T
Condition
Excellent
Purchased
8/16/25
Oracle O.
Verified purchase
Reviewed 5/29/25, United States.
Device arrived on time, very lightly used as promised. Will reccomend to my friends.
Galaxy S23 Ultra 256GB - Black - Locked AT&T
Galaxy S23 Ultra 256GB - Black - Locked AT&T
Condition
Fair
Purchased
4/27/25

Everything you ever wanted to know about the Galaxy S23 Ultra • Locked AT&T

Durability
Overall performance
Camera
Screen quality

SM-S918UMPN
NoMemory Card Slot
Physical SIM + eSIMSIM card
6.4 inHeight
SM-S918UManufacturer Ref.
Dynamic AMOLED 2XScreen type
8 GBMemory (GB)
Samsung Galaxy SSerie
256 GBStorage

The Samsung Galaxy S23 Ultra sits at the top of Samsung’s smartphone lineup, bringing pro-level tools to everyday users. Released in February 2023, it’s only one generation old as of 2025, which means most of its hardware is still very much in the “cutting edge” club. Key highlights include its large display, distinctively integrated S Pen, and a camera system that raises the bar for mobile zoom and detail.

Key features:

Release Date: February 2023
Display: 6.8-inch QHD+ Dynamic AMOLED 2X, 120Hz refresh rate
Processor: Qualcomm Snapdragon 8 Gen 2 for Galaxy
Camera: Quad rear cameras: 200MP wide, 12MP ultra-wide, 10MP 3x telephoto, 10MP 10x periscope telephoto
Stylus: Integrated S Pen for note-taking, sketching, and remote control
Build: Armor Aluminum frame, Gorilla Glass Victus 2 front and back
Connectivity: 5G and Wi-Fi 6E compatible
Operating System: Ships with Android 13 (One UI 5.1)

Who is this for?

The Galaxy S23 Ultra is made for multitaskers, productivity pros, and anyone who needs a big screen for creative work or detailed viewing. If you’ve outgrown “good enough” smartphone cameras, the S23 Ultra’s quartet of lenses, especially that 200MP main sensor, lets you get closer or see more without a lot of extra gear. Compared to the S24 Ultra, you’re not missing much in terms of day-to-day use, but you’ll save yourself the shiny-new-tax – and the S23 Ultra still outclasses most other Android phones on the market. If you just want a basic, pocketable phone, this probably isn’t your match.

Pros & Cons: Pros Cons High-resolution 200MP camera for detailed photos. Large and heavy—not for small hands or tight pockets. Integrated S Pen for precise input and productivity features. Pricey repairs if dropped—gargantuan screens tend to crack rather than bounce. Smooth 120Hz display makes gaming and scrolling feel fluid. No microSD slot—cloud storage fans won’t mind, but file hoarders might. Top-tier performance from its Snapdragon 8 Gen 2 chip. Overkill for casual users—if you just check email, the Ultra is probably Ultra-unnecessary.
Why refurbished?

Choosing a refurbished Samsung Galaxy S23 Ultra means less e-waste and one less device destined for the landfill. At RefurbLane, every pre-owned device goes through rigorous testing to ensure it’s up to our standards—no shortcuts. If you want to see what that means, read about our quality standards here. Less waste, same big screen energy.

MPN: SM-S918U
Memory Card Slot: No
SIM card: Physical SIM + eSIM
Height: 6.4 in
Manufacturer Ref.: SM-S918U
Screen type: Dynamic AMOLED 2X
Memory (GB): 8 GB
Serie: Samsung Galaxy S
Storage: 256 GB
Color (official name): Phantom Black
Last OS Compatibility: Yes
OS: Android
Depth: 0.4 in
Weight: 8 oz
Brand: Samsung
Model: Galaxy S23 Ultra
Screen size (inches): 6.8
Width: 3.1 in
Main camera: 200 megapixels
Network: 5G
SAR head: 1.12
Front camera: 12 megapixels
Resolution: 1440 x 3088
Color: Black
Release Year: 2023
Carrier compatibility: AT&T
Foldable: No

Choose location

Suggested searches

Popular searches

Galaxy S23 Ultra • Locked AT&TBlack • 256 GB • Physical SIM + eSIM

Galaxy S23 Ultra • Locked AT&TBlack • 256 GB • Physical SIM + eSIM

Restored professionally

Comes with

Often bought together

You may also like

Pairs well with

Customer reviews for Galaxy S23 Ultra • Locked AT&T

Overall rating

Rating details

Reviews

Reviews

Sheashea L.

Jenny Z.

Howard B.

Jim D.

Jenise S.

Eric O.

Oracle O.

Popular searches

Everything you ever wanted to know about the Galaxy S23 Ultra • Locked AT&T

Durability

Overall performance

Camera

Screen quality

Related articles

Samsung Galaxy S25 review: Is it still worth it with the Galaxy S26 out? | RefurbLane

Samsung Galaxy S23 Ultra review | RefurbLane

Samsung Galaxy S26 vs. S25 | RefurbLane

Samsung Galaxy S25 Ultra vs S24 Ultra: Is it worth the upgrade? | RefurbLane

Samsung Galaxy S24 series color guide | RefurbLane

Nintendo Switch Black Friday deals - 'Deals of the Year' sale | RefurbLane

Is Black Friday still popular or just a bust? | RefurbLane

Welcome to RefurbLane