Galaxy S24 Ultra IMEI Check: SM-S928U and Lock Status
A used Ultra is cheaper than ever. Match the code, then see how 35 lookups read.
Check this Galaxy S24 Ultra IMEI free
See device, blacklist and lock status in seconds — no signup. Dial *#06# on the phone to display its IMEI — or scan a photo or screenshot of that screen, or of the barcode on the phone's box or SIM tray.
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A year-old Ultra, priced as used
Samsung released the Galaxy S24 Ultra in 2024. Samsung Galaxy S24 Ultra specifications page (read 10 November 2026) lists a 6.8-inch Dynamic AMOLED 2X display, 3120 by 1440 pixels, up to 2,600 nits of peak brightness, a 120 Hz maximum refresh rate and storage of 256 GB, 512 GB and 1 TB. The titanium covers the frame only. A built-in S Pen is part of the phone.
This is the model many buyers compare with the S25 Ultra when choosing a used flagship. The family code differs: SM-S928 here, SM-S938 there. Mixed-up listings happen, so read the code under Settings, About phone.
| Detail from Samsung | Galaxy S24 Ultra | Galaxy S25 Ultra |
|---|---|---|
| US code seen | SM-S928U | SM-S938U |
| Display | 6.8-inch | 6.9-inch |
| Storage | 256 GB, 512 GB, 1 TB | 256 GB, 512 GB, 1 TB |
| Share locked (our lookups) | 40 % of 35 | 57 % of 30 |
What our checker read
Counts are distinct handsets seen between 12 August and 10 November 2026. For SM-S928U:
| SM-S928U result | Devices | Share of 35 |
|---|---|---|
| Locked to a carrier we read | 14 | 40 % |
| Unknown (lock not readable for free) | 18 | 51 % |
| Unlocked | under 10 | - |
Eighteen of the 35 lookups were made in the United States and no other country reached ten. The locked share is lower than for the S25, but it is a sample of 35 and the risk remains: a phone still on a payment plan can be tied to an account.
Steps before paying
- Read the model code under Settings, About phone. For a US sale SM-S928U is the expected one.
- Check for the pen slot at the bottom edge and a 6.8-inch screen.
- Ask for a screenshot of the IMEI from *#06#; it must equal the box and the invoice.
- Run the IMEI here, a blacklist check, and read about Samsung KG locks on financed phones.
Specs are Samsung's; the counts are ours and cover only phones checked on this site.
Questions people ask
What is the US model code of the Galaxy S24 Ultra?
SM-S928U in Samsung's US carrier listings. The international build is SM-S928B. The IMEI does not change with the code, but the code tells you which market the phone was made for.
Is the S24 Ultra frame really titanium?
Samsung says the titanium is limited to the frame, not the volume and side keys. Core colours are Titanium Gray, Black, Violet and Yellow, and Blue, Green and Orange are sold only on Samsung.com.
Does the S24 Ultra have an S Pen?
Yes, Samsung's product copy confirms a built-in S Pen. A listing with no pen slot or a missing pen is worth a question about the price.
How locked are the S24 Ultras you checked?
Of 35 SM-S928U phones, 14 read locked, 18 returned unknown and the rest were under ten. That is 40 % locked, lower than the 57 % for the newer <a href="/check/galaxy-s25-ultra">S25 Ultra</a>.
What display size should I expect?
Samsung lists 6.8 inches, Dynamic AMOLED 2X, 3120 by 1440 pixels and a 120 Hz maximum refresh rate. The S25 Ultra is 6.9 inches.