Samsung · Phone profile

Samsung Galaxy Z Flip4

Reported SAR values from FCC filings, how they compare, and the full specifications.

Display6.7 inches

ChipsetQualcomm SM8475 Snapdragon 8+ Gen 1 (4 nm)

FCC IDA3LSMF721U

Compare this phone Phone-vs-phone pages SAR Kids view

FCC ID A3LSMF721U · released 2022-08-28.

SAR overview

Reported US test values · W/kg averaged over 1 g of tissue · FCC limit 1.6 W/kg

Head SAR · cellular only0.19 W/kg12% of the US 1.6 W/kg limit

Body SAR · cellular only0.77 W/kg48% of the US 1.6 W/kg limit

Hotspot SAR · cellular only1.01 W/kg63% of the US 1.6 W/kg limit

Head SAR · simultaneous1.56 W/kg98% of the US 1.6 W/kg limit

Body SAR · simultaneous1.16 W/kg72% of the US 1.6 W/kg limit

Hotspot SAR · simultaneous1.59 W/kg99% of the US 1.6 W/kg limit

0–0.400.41–0.800.81–1.201.21+ W/kg

Colors show reported SAR ranges, not a safety verdict. A lower listed maximum does not guarantee lower everyday exposure. How to read these numbers.

EU values and source

Head (EU, 10 g, 2 W/kg limit)	1.15 W/kg
Body (EU, 10 g)	1.20 W/kg
FCC ID	A3LSMF721U
Source	RF Safe original phone profile

SAR comparison chart

Samsung Galaxy Z Flip4 SAR chart: cellular-only versus simultaneous Wi-Fi and cellular test values — RF Safe source chart. Open it for the full-size version.

Head and body views

Samsung Galaxy Z Flip4 head SAR visual — Head SAR view, as illustrated by RF Safe.

Samsung Galaxy Z Flip4 body SAR visual — Body SAR view, as illustrated by RF Safe.

See it through a child-size lens

Compare the Samsung Galaxy Z Flip4

Samsung Galaxy Z Flip4 vs Samsung Galaxy Z Flip3

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Full specifications

General

Phone	Samsung Galaxy Z Flip4
Technology	GSM / CDMA / HSPA / EVDO / LTE / 5G
Announced	August 10, 2022
Status	Available. Released 2022, August 25
Model Names	SM-F721B, SM-F721B/DS, SM-F721N, SM-F721U, SM-F721U1, SM-F721W

Display

Type	Foldable Dynamic AMOLED 2X, 120Hz, HDR10+, 1200 nits (peak)
Size	6.7 inches, 101.5 cm2 (~85.4% screen-to-body ratio)
Resolution	1080 x 2640 pixels (~426 ppi density)
Features	N/A
Display Test	Contrast ratio: Infinite (nominal)

Camera

Main Camera	Dual Camera: 12 MP, f/1.8, 24mm (wide), 1/1.76", 1.8m, Dual Pixel PDAF, OIS 12 MP, f/2.2, 123 (ultrawide), 1.12m
Main Features	LED flash, HDR, panorama
Video	4K@30/60fps, 1080p@60/240fps, 720p@960fps, HDR10+
Selfie Camera	Single Camera: 10 MP, f/2.4, 26mm (wide), 1.22m
Selfie Camera Features	HDR
Selfie Camera Video	4K@30fps

Battery

Type	Li-Po 3700 mAh, non-removable
Charging	25W wired, 50% in 30 min (advertised) 15W wireless 4.5W reverse wireless

Hardware

Operating System	Android 12, upgradable to Android 13, One UI 5
Chipset	Qualcomm SM8475 Snapdragon 8+ Gen 1 (4 nm)
CPU	Octa-core (1x3.19 GHz Cortex-X2 & 3x2.75 GHz Cortex-A710 & 4x1.80 GHz Cortex-A510)
GPU	Adreno 730
Performance	AnTuTu: 685754 (v8) \| 800001 (v9) GeekBench: 3913 (v5.1) GFXBench: 74fps (ES 3.1 onscreen)
Internal Storage	128GB 8GB RAM, 256GB 8GB RAM, 512GB 8GB RAM
Card Slot	No
Sensors	Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, barometer

Connectivity

Wi-fi	Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct
Bluetooth	5.2, A2DP, LE
USB	USB Type-C 2.0, USB On-The-Go
GPS	GPS, GLONASS, GALILEO, BDS
NFC	Yes
Radio	No

Sound

Loudspeaker	Yes, with stereo speakers
3.5mm Jack	No
Loudspeaker Test	-27.5 LUFS (Good)

Design

Type	Bar
Dimensions	Unfolded: 165.2 x 71.9 x 6.9 mm Folded: 84.9 x 71.9 x 15.9-17.1 mm
Weight	187 g (6.60 oz)
Colors	Bora Purple, Graphite, Pink Gold, Blue, Yellow, White, Navy, Khaki, Red
Build	Plastic front (opened), glass back (Gorilla Glass Victus+), aluminum frame

Network

Speed	HSPA, LTE-A (6CA), 5G
SIM	Nano-SIM and eSIM
2G Network	GSM 850 / 900 / 1800 / 1900
3G Network	HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G Network	LTE
5G Network	SA/NSA/Sub6/mmWave