Samsung · PHONE PROFILE

Samsung Galaxy S25 Ultra

Name: Samsung Galaxy S25 Ultra
Brand: Samsung

The specifications, radiation measurements and practical choices for your phone.

Display6.9 inches

ChipsetSnapdragon 8 Elite for Galaxy

FCC identifierA3LSMS938B

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RF Safe source record retrieved September 12, 2026. Regional specifications and test configurations may differ.

The SAR overview.

Reported US test values · W/kg averaged over 1 g of tissue

Head SAR · cellular only1.26 W/kg79% of US localized limit

Body SAR · cellular only0.78 W/kg49% of US localized limit

Hotspot SAR · cellular only1.19 W/kg74% of US localized limit

Head SAR · simultaneous1.59 W/kg99% of US localized limit

Body SAR · simultaneous1.40 W/kg87% of US localized limit

Hotspot SAR · simultaneous1.48 W/kg92% of US localized limit

0–0.400.41–0.800.81–1.201.21+ W/kgUS localized test values · 1 g average

Colors indicate reported SAR ranges, not a safety verdict. Results depend on test configuration and regional model. A lower listed maximum does not guarantee lower everyday exposure. How to read these numbers →

Additional SAR values & source information

Hotspot, cellular only (US)	1.19 W/kg
Product-specific source field (US)	1.19 W/kg
Head (EU, 10 g)	— W/kg
Body (EU, 10 g)	— W/kg
FCC ID	A3LSMS938B — FCC equipment search ↗
Source	RF Safe original phone profile ↗
Data note	Values are reported by the RF Safe source record and have not been independently re-tested here. Zero or blank source values are shown as not listed.

Your SAR comparison, at a glance.

Cellular-only and simultaneous-transmission values, side by side.

Samsung Galaxy S25 Ultra SAR comparison chart showing cellular-only versus simultaneous Wi-Fi and cellular test values — RF Safe source chart. Green and red compare lower and higher values within this chart; they differ from the fixed SAR ranges above. Percentage differences compare test configurations and do not predict a personal exposure reduction.
Open full-size chart ↗Download web-size chart ↓

Two views. One clearer picture.

RF Safe reference illustrations for this phone.

Head exposure reference

Samsung Galaxy S25 Ultra head SAR reference illustration

Body exposure reference

Samsung Galaxy S25 Ultra body SAR reference illustration

Source illustrations visualize the RF Safe record. They are not scans of an individual, a measured personal dose, or a forecast of disease. Read the numerical labels and the original test context.

A practical introduction.Read the illustrated usage guide →

BETTER PHONE HABITS

Put the numbers into practice.

Watch the phone safety introduction, then explore the illustrated guide to distance, carrying and correct QuantaCase orientation.

Explore the usage guide →

Every specification, in one place.

Source specifications by category. Regional models, software and availability may differ.

Selected launch specifications cross-checked with Samsung’s original announcement ↗.

General

Phone	Samsung Galaxy S25 Ultra
Technology	GSM / CDMA / HSPA / EVDO / LTE / 5G
Announced	01-12-2024
Availability (source snapshot)	Available
Model Names	SM-S938B, SM-S938B/DS, SM-S938U, SM-S938U1, SM-S938W, SM-S938N, SM-S9380, SM-S938E, SM-S938E/DS
Manufacturer cross-check	Display, chipset, weight, storage and launch colors corrected against Samsung’s Galaxy S25 series announcement.

Display

Type	Dynamic LTPO AMOLED 2X, 120Hz, HDR10+, 2600 nits (peak)
Size	6.9 inches (full rectangle); 6.8 inches accounting for rounded corners
Resolution	1440 x 3120 pixels, 19.5:9 ratio (~505 ppi density)
Protection	Corning Gorilla Armor 2
Features	Always-on display

Camera

Main Camera	Quad Camera: 200 MP, f/1.7, 24mm (wide), 1/1.3", 0.6m, multi-directional PDAF, OIS 10 MP, f/2.4, 67mm (telephoto), 1/3.52", 1.12m, PDAF, OIS, 3x optical zoom 50 MP, f/3.4, 111mm (periscope telephoto), 1/2.52", 0.7m, PDAF, OIS, 5x optical zoom 50 MP, f/2.0, 13mm, 120 (ultrawide), 0.7m, dual pixel PDAF, Super Steady video
Main Features	Laser AF, LED flash, auto-HDR, panorama
Video	8K@24/30fps, 4K@30/60/120fps, 1080p@30/60/240fps, HDR10+, stereo sound rec., gyro-EIS
Selfie Camera	Single Camera: 12 MP, f/2.2, 26mm (wide), dual pixel PDAF
Selfie Camera Features	HDR, HDR10+
Selfie Camera Video	4K@30/60fps, 1080p@30fps

Battery

Type	Li-Ion 5000 mAh, non-removable
Charging	45W wired, PD3.0, 65% in 30 min (advertised) 25W wireless (Qi2/PMA) 4.5W reverse wireless

Hardware

Operating system (source snapshot)	Android 15, up to 7 major Android upgrades, One UI 7
Chipset	Snapdragon 8 Elite for Galaxy
CPU	Octa-core (2x4.19 GHz & 6x2.90 GHz)
GPU	Adreno 830 (1.25 GHz)
Internal Storage	256GB / 512GB / 1TB; 12GB RAM in Samsung’s global launch specification; options vary by market
Card Slot	No
Sensors	Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer Samsung DeX, Samsung Wireless DeX (desktop experience support) Ultra Wideband (UWB) support Circle to Search

Connectivity

Wi-fi	Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct
Bluetooth	5.3, A2DP, LE
USB	USB Type-C 3.2, DisplayPort 1.2, OTG
GPS	GPS, GLONASS, BDS, GALILEO, QZSS
NFC	Yes
Radio	No

Sound

Loudspeaker	Yes, with stereo speakers
3.5mm Jack	No

Design

Type	Bar
Dimensions	162.8 x 77.6 x 8.2 mm (6.41 x 3.06 x 0.32 in)
Weight	218 g
Colors	Titanium Silverblue, Titanium Black, Titanium Whitesilver, Titanium Gray; additional colors may vary by market
Build	Titanium frame; Corning Gorilla Armor 2 front cover

Network

Speed	HSPA, LTE (up to 7CA), 5G
SIM	Nano-SIM and eSIM/ Dual eSIM or Dual SIM (2 Nano-SIMs and eSIM, dual stand-by) IP68 dust/water resistant (up to 1.5m for 30 min) Stylus (Bluetooth integration, accelerometer, gyro)
2G Network	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (Dual SIM model only) CDMA 800 / 1900 & TD-SCDMA
3G Network	HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 CDMA2000 1xEV-DO
4G Network	LTE
5G Network	SA/NSA/Sub6 - International SA/NSA/Sub6/mmWave - USA

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Samsung Galaxy S25 Ultra RFS1 Anti-Radiation Case

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QuantaCase is a directional shielding accessory and a habit-training tool. Correct orientation matters; a case does not make a phone risk-free. Explore the design →