RFRF SAFE PHONES
RF
RF Safe Phones @rfsafe
Independent specifications + SAR context
Samsung
Samsung Galaxy S25 Fe
Complete phone profile

Samsung Galaxy S25 Fe

A fast, evidence-aware guide to specifications, connectivity, hardware, and radiofrequency exposure measurements.

6.7 inches, 110.2 cm2 (~89.2% screen-to-body ratio)Android 15, up to 7 major Android upgrades, One UI 7FCC ID A3LSMS731U

At a glance

The facts most people need before the deep specification sheet.

Display6.7 inches, 110.2 cm2 (~89.2% screen-to-body ratio)
ProcessorExynos 2400 (4 nm)
Operating systemAndroid 15, up to 7 major Android upgrades, One UI 7
BatterySi/C Li-Ion 4500 mAh
Main cameraTriple Camera: 50 MP, f/1.8, 24mm (wide), 1/1.57", 1.0m, dual pixel PDAF, OIS 8 MP, f/2.4, 75mm (telephoto), 1/4.4", 1.0m, PDAF, OIS, 3x optical zoom 12 MP, f/2.2, 13mm, 123 (ultrawide), 1/3.0", 1.12m
NetworkGSM / HSPA / LTE / 5G
AnnouncedJanuary 1, 1970
Dimensions161.3 x 76.6 x 7.4 mm (6.35 x 3.02 x 0.29 in)
SAR
Hybrid SAR profile
Cellular-only and simultaneous transmitters
US limit 1.6 W/kg
Head · Cellular
1.04 W/kg
65.0% of 1.6#38
Body · Cellular
1.03 W/kg
64.4% of 1.6#37
Hotspot · Cellular
1.10 W/kg
68.8% of 1.6#31
Head · Wi-Fi + Cell
1.52 W/kg
95.0% of 1.6#40
Body · Wi-Fi + Cell
1.53 W/kg
95.6% of 1.6#37
Hotspot · Wi-Fi + Cell
1.59 W/kg
99.4% of 1.6#34
PositionCellular onlyDifferenceWi-Fi + cellular
Head1.04 W/kg 65.00% · #3831.6% lower1.52 W/kg 95.00% · #40
Body1.03 W/kg 64.38% · #3732.7% lower1.53 W/kg 95.63% · #37
Hotspot1.10 W/kg 68.75% · #3130.8% lower1.59 W/kg 99.38% · #34

Difference = (1 − cellular-only ÷ simultaneous) × 100. Rank and percentage values come from the supplied RF Safe cache. SAR is a compliance measurement, not an individualized health prediction.

Complete specifications

Factual fields are shown first. Longer cached editorial notes remain expandable to keep the page fast to scan.

◉  General
Phone
Samsung Galaxy S25 Fe
Technology
GSM / HSPA / LTE / 5G
Announced
January 1, 1970
Status
Available
Model Names
SM-S731B, SM-S731B/DS
▣  Display
Type
Dynamic AMOLED 2X, 120Hz, HDR10+, 1900 nits (peak)
Size
6.7 inches, 110.2 cm2 (~89.2% screen-to-body ratio)
Resolution
1080 x 2340 pixels, 19.5:9 ratio (~385 ppi density)
Protection
Corning Gorilla Glass Victus+
◎  Camera
Main Camera
Triple Camera: 50 MP, f/1.8, 24mm (wide), 1/1.57", 1.0m, dual pixel PDAF, OIS 8 MP, f/2.4, 75mm (telephoto), 1/4.4", 1.0m, PDAF, OIS, 3x optical zoom 12 MP, f/2.2, 13mm, 123 (ultrawide), 1/3.0", 1.12m
Main Features
LED flash, HDR, panorama
Video
8K@30fps, 4K@30/60/120fps, 1080p@30/60/120/240fps
Selfie Camera
Single Camera: 12 MP, f/2.2, 26mm (wide), 1/3.2", 1.12m
Selfie Camera Video
4K@30/60fps, 1080p@30/60fps; gyro-EIS
ϟ  Battery
Type
Si/C Li-Ion 4500 mAh
Charging
45W wired, PD, QC2 15W wireless Reverse wireless
◆  Hardware
Operating System
Android 15, up to 7 major Android upgrades, One UI 7
Chipset
Exynos 2400 (4 nm)
CPU
10-core (1x3.2GHz Cortex-X4 & 2x2.9GHz Cortex-A720 & 3x2.6GHz Cortex-A720 & 4x1.95GHz Cortex-A520)
GPU
Xclipse 940
Internal Storage
128GB 8GB RAM, 256GB 8GB RAM, 512GB 8GB RAM
Card Slot
No
Sensors
Fingerprint (under display, optical), accelerometer, gyro, compass Virtual proximity sensing Samsung DeX Circle to Search
⌁  Connectivity
Wi-fi
Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band or tri-band (market/region dependent), Wi-Fi Direct
Bluetooth
5.3, A2DP, LE
USB
USB Type-C 3.2, OTG
GPS
GPS, GLONASS, GALILEO, BDS
NFC
Yes
Radio
Unspecified
◒  Sound
Loudspeaker
Yes, with stereo speakers
3.5mm Jack
No
◇  Design
Type
Bar
Dimensions
161.3 x 76.6 x 7.4 mm (6.35 x 3.02 x 0.29 in)
Weight
190 g (6.70 oz)
Colors
Dark Blue, Light Blue, Black, White
Build
Glass front (Gorilla Glass Victus+), glass back (Gorilla Glass Victus+), aluminum frame
⌁  Network
Speed
HSPA, LTE (CA), 5G
SIM
Nano-SIMNano-SIM + Nano-SIMNano-SIM + eSIMeSIM + eSIM IP68 dust tight and water resistant (immersible up to 1.5m for 30 min)
2G Network
GSM 850 / 900 / 1800 / 1900
3G Network
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G Network
LTE
5G Network
SA/NSA/Sub6