Samsung · Instant quote

Samsung Galaxy S23 Ultra

Carrier:

Storage:

Cosmetic Condition:

Functionality:

Accessories included:

The Samsung Galaxy S23 Ultra launched in 2023 as Samsung's flagship phablet, built for people who wanted a built-in S Pen, a long-zoom camera system, and top-tier performance in one device. It carries model numbers in the SM-S928 family, including SM-S928U for US carrier and unlocked units. It still holds resale value because the hardware aged well: a fast Snapdragon chip built specifically for Galaxy, a 200MP main sensor, and a stylus few competitors match. Whether yours has a cracked back glass, a tired battery, or works perfectly, pick your carrier, storage tier, and condition in the picker above for an instant cash offer, or read how the process works before you commit. Ready to move forward? You can sell your smartphone in a few minutes once you confirm the details below.

Confirm you have the Galaxy S23 Ultra

Open Settings → About phone → Model number on the device itself. That string, starting with SM-S928, tells you the exact SKU, including whether it's carrier-locked or unlocked. If the phone won't power on, check the original box or the SIM tray for a printed model number.

SM-S928U

  • US retail unlocked model, sold factory-unlocked or activated on a carrier
  • Works across AT&T, T-Mobile, Verizon and most US networks once unlocked
  • Most common configuration for US trade-ins

SM-S928UZTEXAA / SM-S928UZKEXAA / SM-S928UZYEXAA / SM-S928UZVEXAA

  • Carrier and color-specific SKUs sold through AT&T, T-Mobile, Verizon or Samsung.com
  • Suffix differs by finish and point of sale, not by hardware capability
  • Check Settings → About phone to confirm which carrier variant you have

SM-S928

  • Global/international variant, no US carrier branding
  • May display different regional band support in network settings

Prefer a visual check? The S23 Ultra has a curved-edge display and rounded aluminum frame, an S Pen silo at the bottom edge, and a camera bump with four distinct rear lenses stacked vertically along the left side.

Core hardware configurations

Processor

  • Snapdragon 8 Gen 2 for Galaxy, used across every storage and carrier configuration
  • Adreno 740 integrated graphics

Memory & storage

  • 256GB and 512GB configurations pair with 8GB RAM
  • 1TB configuration pairs with 12GB RAM
  • RAM and storage are soldered, not user-upgradable
  • 1TB units generally hold the strongest resale value given the extra RAM

Cameras

  • 200MP wide main sensor
  • 12MP ultrawide
  • 10MP telephoto at 3x optical zoom
  • 10MP periscope telephoto at 10x optical zoom
  • 12MP front-facing camera

Display & audio

Display

6.8-inch QHD+ Dynamic AMOLED 2X panel with adaptive refresh up to 120Hz and curved side edges. Gorilla Glass Victus 2 protects the front.

Audio

Stereo speakers tuned by AKG with Dolby Atmos support. No 3.5mm headphone jack.

Security

Ultrasonic in-display fingerprint sensor and face recognition. The built-in S Pen supports Bluetooth-enabled air actions.

Ports & connectivity

The S23 Ultra keeps a single USB-C port and drops the memory card slot found on older Note-lineage phones, so storage tier matters more here than on some other Galaxy models.

Ports
  • USB-C 3.2 for charging and data
  • S Pen storage silo with charging contacts
Wireless
  • 5G (sub-6GHz, mmWave on select US carrier units)
  • Wi-Fi 6E
  • Bluetooth 5.3
  • NFC and ultra-wideband (UWB)

200MP camera Built-in S Pen 120Hz Dynamic AMOLED 2X Snapdragon 8 Gen 2 for Galaxy IP68 rated 5000mAh battery Wi-Fi 6E

Battery, build & more

Battery

5000mAh with 45W wired fast charging, 15W wireless charging, and reverse wireless charging for accessories. No charger is included in the retail box.

Dimensions & weight

Large-format phablet body with a rounded aluminum frame and curved glass back, heavier than most standard flagship phones due to the S Pen housing.

Finishes

Phantom Black, Green, Cream and Lavender were the standard retail colors, with additional online-exclusive finishes sold directly through Samsung.

Software

Shipped on One UI over Android, covered under Samsung's four-generation major OS upgrade policy plus extended security updates. A fully updated unit is easier to resell.

Market positioning

Sits at the top of Samsung's lineup for this generation. Units with the S Pen intact, an unlocked carrier status, and higher storage tiers tend to command the strongest offers.

Frequently asked questions

01 How do I find the model number or exact configuration?
Go to Settings → About phone → Model number. This shows the full SM-S928 string, which tells you carrier status and region. To check storage and RAM, go to Settings → About phone → Storage, or look under Device care for a summary. If the phone is dead or won't boot, the model number is also printed on the original packaging and sometimes on the SIM tray itself.
02 How do I tell it apart from the Galaxy S24 Ultra?
Check the frame material and edges first. The S23 Ultra has a rounded aluminum frame with curved side edges on the display, while the S24 Ultra uses a titanium frame with flat sides and a flatter screen. Settings → About phone will also show a different model number series if you have an S24 Ultra. When in doubt, use the device model finder to confirm before you request a quote.
03 Can I sell it with damage, a weak battery, or if it won't turn on?
Yes, damaged and non-functional units are accepted, and the picker above adjusts your quote based on the condition you select. A cracked screen, a battery that drains fast, or a phone that won't power on all still hold value for parts or refurbishment. Before shipping, you must sign out of your Samsung account and Google account and disable Find My Mobile, or the device cannot be resold and may be rejected. If the screen is unreadable, this step becomes harder, so try to remove account locks while the phone still functions if at all possible.
04 What raises the trade-in value the most?
An unlocked carrier status matters most, since it opens the phone to a wider pool of buyers. A working S Pen, an intact screen with no deep scratches, and a battery that still holds a normal charge all help. Higher storage tiers, like the 1TB configuration, also carry a value edge over the base 256GB model. Keeping the original box and charging cable is a nice bonus but does not move the number nearly as much as functional condition does.
05 How do I erase it and remove my accounts, and how do I get paid?
First back up anything you want to keep. Go to Settings → Accounts and backup and remove your Samsung account, then go to Settings → General management → Reset → Factory data reset. Before or during this process, also remove your Google account and confirm Find My Mobile is turned off, since a locked device cannot be resold. Once your quote is confirmed, shipping is free and insured, and payment goes out after inspection and testing by PayPal, Venmo, Zelle, CashApp or check. Full step-by-step guidance is available in our data erasure protocols.