5G Dynamic AM-OLED IP68 Smartphone

Samsung SM-S938U Galaxy S25 Ultra UW 5G Dual SIM TD-LTE US 256GB / SM-S938A (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

This variant adds UW 5G TD‑LTE US network compatibility and ships with 256 GB of storage, while retaining the same dimensions, display, OS, RAM, battery and charging as the base Galaxy S25 Ultra. Unlike the other S25 Ultra UW 5G listings, it is the 256 GB model identified by the SM‑S938A suffix; the other 256 GB versions use SM‑S938U1, SM‑S938R4, SM‑S938V or SM‑S938T, and the higher‑capacity options offer 512 GB or 1 TB with various suffixes.

Technical Specifications

Display

Size

6.86 inch

Type

Dynamic AM-OLED

Resolution

1440x3120

Color depth

24-bit, 10-bit HDR

Panel

Samsung

Screen-to-body

91.4%

Active area

73 × 158.17 mm

Touch

Capacitive multi-touch sensing screen, 10-point

Punch-hole

Yes

Performance

Processor

Snapdragon 8 Elite for Galaxy

CPU

Octa-core, up to 4.5 GHz

GPU

Qualcomm Adreno 830

Process

3 nm

Platform

Google Android

Memory

RAM

12 GiB

RAM chip

Micron MT62F1536M64D8ZA-020VWT

Storage chip

Samsung KLUEG4RHHF-F0G1

Battery

Capacity

5000 mAh

Type

Lithium-ion

Energy

19.4 Wh

Voltage

3.88 V

Charging

15W

Cameras

Main

16384×12288 · 5× optical visibility

Main

visibility

Telephoto

67 mm visibility

Telephoto

111 mm visibility

Front

4000×3000 visibility

Dimensions

Size

77.6 × 162.8 × 8.2 mm

Weight

218 g

Water resistance

IP68

Connectivity

Wi-Fi

Wi-Fi 7

Wi-Fi services

DLNA, Miracast, Wi-Fi Direct, Wi-Fi Tethering, WiDi, Wi-Fi Calling (VoWiFi)

Bluetooth profiles

A2DP, A2DP with aptX codec, A2DP with aptX HD codec, AVRCP, DIP, GAVDP, HFP, HID, HSP, MAP, OPP, PAN, PBA, SAP, SPP

USB

USB Type-C reversible

USB services

USB charging, USB fast charging, USB Host, USB On-The-Go 1.3, USB On-The-Go 2.0, USB Power Delivery, USB Power Delivery 2.0, USB Power Delivery 3.0

NFC

NFC A, NFC B

GPS

GPS, GLONASS, Galileo, BeiDou, QZSS

GPS services

Simultaneous GPS (S-GPS), Assisted GPS, Kétfrekvenciás GPS, Geotagging, QuickGPS, QZSS, Satellite SOS

AV out

DisplayPort (Unspecified) · 3840x2160 (2160p) 4K UHD

NR · 10 bandsTD-NR · 7 bandsLTE · 19 bandsTD-LTE · 5 bandsUMTS · 5 bandsGSM · 4 bands

All NR bands (10)

NR 1700/2100 MHz (N66)
NR 1800 MHz (N3)
NR 1900 MHz (N2, PCS)
NR 2100 MHz (N1)
NR 2300 MHz (N30)
NR 2600 MHz (N7)
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 (19)

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 2300 MHz (Band 30)
LTE 2600 MHz (Band 7)
LTE 700 MHz (Band 12)
LTE 700 MHz (Band 13)
LTE 700 MHz (Band 28)
LTE 700 MHz (Band 29)
LTE 700 MHz (Band XIV)
LTE 800 MHz (Band 18)
LTE 800 MHz (Band 19)
LTE 800 MHz (Band 20)
LTE 850 MHz (Band 26)
LTE 850 MHz (Band 5)
LTE 900 MHz (Band 8)

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)

Audio

Channels

stereo

Output

USB Type-C

DAC

32-bit / 384 kHz

Sensors

Accelerometer, Barometer, Compass, Gyroscope, Hall sensor, In-screen fingerprint sensor, Light intensity sensor, Proximity sensor, Step counter

Features

Fingerprint

Yes (in-screen fingerprint sensor)

SIM

e-SIM (embedded) · Dual standby

Carrier

AT&T Mobility

Markets

North America (NA) (USA)

Extras

Haptic touch feedback, Active stylus

Software extras

Voice Command, Business card recognition, Navigation software, Augmented Reality (AR), Virtual Reality (VR) support, Intelligent personal assistant, Voice Recognition, Face Recognition

Regulatory

HAC

M3, T3

Data status

Final

Samsung SM-S938U1 Galaxy S25 Ultra UW 5G Dual SIM TD-LTE US 512GB (Samsung Paradigm 3)

View Specs

Samsung SM-S938U Galaxy S25 Ultra UW 5G Dual SIM TD-LTE US 256GB / SM-S938A (Samsung Paradigm 3)

About Samsung Galaxy S25 Ultra

Technical Specifications

Model Variants

Samsung Galaxy S25 Ultra

Samsung Galaxy S25 Ultra

Samsung Galaxy S25 Ultra

Samsung Galaxy S25 Ultra

Samsung Galaxy S25 Ultra

Samsung Galaxy S25 Ultra

Samsung Galaxy S25 Ultra

Samsung Galaxy S25 Ultra

Samsung Galaxy S25 Ultra

Samsung Galaxy S25 Ultra

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