RFRF SAFE PHONES
RF
RF Safe Phones @rfsafe
Independent specifications + SAR context
Samsung
Samsung Galaxy Z Flip4
Complete phone profile

Samsung Galaxy Z Flip4

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

6.7 inches, 101.5 cm2 (~85.4% screen-to-body ratio)Android 12, upgradable to Android 13, One UI 5FCC ID A3LSMF721U

At a glance

The facts most people need before the deep specification sheet.

Display6.7 inches, 101.5 cm2 (~85.4% screen-to-body ratio)
ProcessorQualcomm SM8475 Snapdragon 8+ Gen 1 (4 nm)
Operating systemAndroid 12, upgradable to Android 13, One UI 5
BatteryLi-Po 3700 mAh, non-removable
Main cameraDual 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
NetworkGSM / CDMA / HSPA / EVDO / LTE / 5G
AnnouncedAugust 10, 2022
DimensionsUnfolded: 165.2 x 71.9 x 6.9 mm Folded: 84.9 x 71.9 x 15.9-17.1 mm
SAR
Hybrid SAR profile
Cellular-only and simultaneous transmitters
US limit 1.6 W/kg
Head · Cellular
0.19 W/kg
11.9% of 1.6#2
Body · Cellular
0.77 W/kg
48.1% of 1.6#15
Hotspot · Cellular
1.01 W/kg
63.1% of 1.6#18
Head · Wi-Fi + Cell
1.56 W/kg
97.5% of 1.6#62
Body · Wi-Fi + Cell
1.16 W/kg
72.5% of 1.6#12
Hotspot · Wi-Fi + Cell
1.59 W/kg
99.4% of 1.6#64
PositionCellular onlyDifferenceWi-Fi + cellular
Head0.19 W/kg 11.88% · #287.8% lower1.56 W/kg 97.50% · #62
Body0.77 W/kg 48.13% · #1533.6% lower1.16 W/kg 72.50% · #12
Hotspot1.01 W/kg 63.13% · #1836.5% lower1.59 W/kg 99.38% · #64

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 Z Flip4
Technology
GSM / CDMA / HSPA / EVDO / LTE / 5G
Announced
August 10, 2022
Status
Available. Released 2022, August 25
Price
C$ 1,100.00 / ₹ 71,850 / $ 564.00 / £ 799.99 / € 789.90
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
Read the cached display deep dive
Introduction: In this review, we will be taking a closer look at the cell phone specs of the Samsung Galaxy Z Flip4. These features have been designed to enhance your user experience and improve the overall functionality of your phone. Display: The Samsung Galaxy Z Flip4 boasts a Foldable Dynamic AMOLED 2X display with a 120Hz refresh rate, HDR10+ compatibility, and a peak brightness of 1200 nits. This technology is a significant improvement over the TFT and IPS displays of older models. Notable feature differences include the foldable design, which allows for a larger screen size without sacrificing portability. The 120Hz refresh rate ensures smoother scrolling and better visual performance, while HDR10+ compatibility delivers superior contrast and color accuracy. As pitchman Billy Mays would say, "But wait, there's more!" The Samsung Galaxy Z Flip4 also has an impressive screen-to-body ratio of 85.4%, meaning more screen real estate for your viewing pleasure. Conclusion: Overall, the display specs of the Samsung Galaxy Z Flip4 are top-notch and provide a superior viewing experience. If you're in the market for a new phone and prioritize a high-quality display, the Samsung Galaxy Z Flip4 is definitely worth considering. With its foldable design and advanced display technology, this phone is sure to impress.
◎  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
ϟ  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
◇  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