Samsung SM-S938U Galaxy S25 Ultra UW 5G Dual SIM TD-LTE US 512GB / SM-S938R4 (Samsung Paradigm 3)
Samsung · Announced Jan 2025
About Samsung Galaxy S25 Ultra
The Samsung Galaxy S25 Ultra presents a striking slate with dimensions of 77.6 by 162.8 by 8.2 millimeters and a weight of 218 grams, fitting comfortably in the hand while signaling its premium stance. At its front lies a 6.86‑inch Color AM‑OLED panel that delivers a sharp 1440x3120 pixel resolution, offering vivid colors and deep contrast for everything from media consumption to productivity tasks.
Under the surface, the device runs Google Android 15, dubbed Vanilla Ice Cream, and is equipped with 12 GiB of RAM to keep multitasking smooth and responsive. A 5000 mAh battery fuels the experience, replenishing through a 15 watt wired charger, while the phone maintains a single SIM slot for connectivity. These elements combine to shape a flagship that balances a large, high‑resolution display with solid performance and endurance.
This variant steps up to 512 GB of internal storage, offering twice the capacity of the 256 GB models and half that of the 1 TB option. It is identified by the SM‑S938U model number paired with the SM‑S938R4 suffix, setting it apart from the SM‑S938U1‑based versions and from other carrier‑specific suffixes such as T, V or A. As the US‑market TD‑LTE UW 5G edition, it retains the core hardware of the Galaxy S25 Ultra while providing this particular storage and carrier configuration.
Technical Specifications
All NR bands (11)
- NR 1700/2100 MHz (N66)
- NR 1800 MHz (N3)
- NR 1900 MHz (N2, PCS)
- NR 1900 MHz (N25)
- NR 2100 MHz (N1)
- NR 2600 MHz (N7)
- NR 600 MHz (N71)
- NR 700 MHz (N28)
- NR 800 MHz (N20)
- NR 850 MHz (N5)
- NR 900 MHz (N8)
All TD-NR bands (7)
- TD-NR 2500 MHz (N41)
- TD-NR 26 GHz (N258)
- TD-NR 28 GHz (N257)
- TD-NR 28 GHz (N261) bands
- TD-NR 3500 MHz (N78)
- TD-NR 3700 MHz (N77)
- TD-NR 39 GHz (N260)
All LTE bands (15)
- LTE 1700/2100 MHz (Band 4, AWS)
- LTE 1700/2100 MHz (Band 66)
- LTE 1800 MHz (Band 3)
- LTE 1900 MHz (Band 2, PCS)
- LTE 1900 MHz (Band 25)
- LTE 2100 MHz (Band 1)
- LTE 2600 MHz (Band 7)
- LTE 600 MHz (Band 71)
- LTE 700 MHz (Band 12)
- LTE 700 MHz (Band 13)
- LTE 700 MHz (Band 28)
- LTE 700 MHz (Band 29)
- LTE 800 MHz (Band 20)
- LTE 850 MHz (Band 26)
- LTE 850 MHz (Band 5)
All TD-LTE bands (5)
- TD-LTE 1900 MHz (Band 39)
- TD-LTE 2300 MHz (Band XL)
- TD-LTE 2500 MHz (Band XLI)
- TD-LTE 2600 MHz (Band 38)
- TD-LTE 3600 MHz (Band 48)
All UMTS bands (5)
- UMTS 1700/2100MHz (Band IV, AWS)
- UMTS 1900MHz (Band II, PCS)
- UMTS 2100MHz (Band I, IMT)
- UMTS 850MHz (Band V, CLR)
- UMTS 900MHz (Band VIII)
All GSM bands (4)
- GSM 1800MHz (B3)
- GSM 1900MHz (PCS, B2)
- GSM 850MHz (B5)
- GSM 900MHz (B8)
Model Variants
10 other phones with the same base model: Samsung Galaxy S25 Ultra
Samsung Galaxy S25 Ultra
Samsung SM-S938U Galaxy S25 Ultra UW 5G Dual SIM TD-LTE US 256GB / SM-S938A (Samsung Paradigm 3)
Samsung Galaxy S25 Ultra
Samsung SM-S938U Galaxy S25 Ultra UW 5G Dual SIM TD-LTE US 256GB / SM-S938R4 (Samsung Paradigm 3)
Samsung Galaxy S25 Ultra
Samsung SM-S938U Galaxy S25 Ultra UW 5G Dual SIM TD-LTE US 256GB / SM-S938T (Samsung Paradigm 3)
Samsung Galaxy S25 Ultra
Samsung SM-S938U Galaxy S25 Ultra UW 5G Dual SIM TD-LTE US 256GB / SM-S938V (Samsung Paradigm 3)
Samsung Galaxy S25 Ultra
Samsung SM-S938U Galaxy S25 Ultra UW 5G Dual SIM TD-LTE US 512GB / SM-S938A (Samsung Paradigm 3)
Samsung Galaxy S25 Ultra
Samsung SM-S938U Galaxy S25 Ultra UW 5G Dual SIM TD-LTE US 512GB / SM-S938T (Samsung Paradigm 3)
Samsung Galaxy S25 Ultra
Samsung SM-S938U Galaxy S25 Ultra UW 5G Dual SIM TD-LTE US 512GB / SM-S938V (Samsung Paradigm 3)
Samsung Galaxy S25 Ultra
Samsung SM-S938U1 Galaxy S25 Ultra UW 5G Dual SIM TD-LTE US 1TB (Samsung Paradigm 3)
Samsung Galaxy S25 Ultra
Samsung SM-S938U1 Galaxy S25 Ultra UW 5G Dual SIM TD-LTE US 256GB (Samsung Paradigm 3)
Samsung Galaxy S25 Ultra
Samsung SM-S938U1 Galaxy S25 Ultra UW 5G Dual SIM TD-LTE US 512GB (Samsung Paradigm 3)