Samsung Galaxy Z Flip4 Radiation Levels
0.19 W/kg which is Ranked #2 at 11.88% of Legal Limit
Samsung Galaxy Z Flip4 SAR Level Summary: The cellular transmission SAR values for the Samsung Galaxy Z Flip4 (FCC ID A3LSMF721U) are 0.19 W/kg (watts per kilogram) at the head and 0.77 W/kg when worn on the body. The hotspot/Airplay SAR level is 1.01 W/kg. The simultaneous transmission SAR values for Galaxy Z Flip4 (cellular plus Wi-Fi) is 1.56 W/kg at the head, 1.16 W/kg when worn on the body, and 1.59 W/kg when used as a hotspot simultaneously with other transmitters active. Select a Spec Group General Display Camera Battery Hardware Connectivity Sound Design Network View Thermal Visualization Select SAR Test Position Head SAR Body SAR Samsung Galaxy Z Flip4 Safety Tip: Turning Off Wi-Fi and Bluetooth Reduces Radiation.
This SAR chart reveals how turning off Wi-Fi and Bluetooth on your Samsung Galaxy Z Flip4 can significantly reduce your exposure to radiation. Our SAR comparison chart shows that by simply turning off these transmitters, you can
lower the RF radiation exposure to your head by 87.8%, and you can lower exposure to the body by 33.6%, when considering these differences between cellular-only (Wi-Fi/Bluetooth OFF) and simultaneous use exposure (Wi-Fi/Bluetooth ON), a wise way to reduce excessive phone radiation is to tap off unnecessary transmitters when not in use. Additionally, when using your phone as a hotspot, turning off Bluetooth can reduce your exposure by up to 57.4% according to the FCC SAR report for device number A3LSMF721U.
Comparison of SAR levels between cellular-only and simultaneous exposure RADIATION LEVELS CELLULAR ONLY (% DIFF) SIMULTANEOUS HEAD 0.19 W/kg 87.8% 1.56 W/kg BODY 0.77 W/kg 33.6% 1.16 W/kg HOTSPOT 1.01 W/kg 57.4% 1.59 W/kg
The Specific Absorption Rate (SAR) of a mobile device measures the amount of radio frequency energy absorbed by the body during device usage.
The SAR values for the galaxy-z-flip4 (FCC ID A3LSMF721U) are as follows:
0.19 W/kg when held at the head with cellular transmission only 0.77 W/kg when worn on the body with cellular transmission only 1.01 W/kg when used as a Hotspot or Airplay 1.56 W/kg when held at the head with simultaneous cellular and Wi-Fi transmission 1.16 W/kg when worn on the body with simultaneous cellular and Wi-Fi transmission 1.59 when used as a Hotspot simultaneously with other transmitters active.
Samsung Galaxy Z Flip4 - SAR Levels
Network Technology GSM / CDMA / HSPA / EVDO / LTE / 5G 2G bands GSM 850 / 900 / 1800 / 1900 CDMA 800 / 1900 3G bands HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100 CDMA2000 1xEV-DO 4G bands LTE 5G bands SA/NSA/Sub6/mmWave Speed HSPA, LTE-A (6CA), 5G
Launch Announced 2022, August 10 Status Available. Released 2022, August 25
Body 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) Build Plastic front (opened), glass back (Gorilla Glass Victus+), aluminum frame SIM Nano-SIM and eSIM IPX8 water resistant (up to 1.5m for 30 mins) Armor aluminum frame with tougher drop and scratch resistance (advertised)
Display Type Foldable Dynamic AMOLED 2X, 120Hz, HDR10+, 1200 nits (peak) Size 6.7 inches, 101.5 cm 2 (~85.4% screen-to-body ratio) Resolution 1080 x 2640 pixels (~426 ppi density) Cover display: Super AMOLED, 1.9 inches, 260 x 512 pixels (Gorilla Glass Victus+)
Platform OS Android 12, upgradable to Android 13, One UI 5 Chipset Qualcomm SM8475 Snapdragon 8+ Gen 1 (4 nm) CPU Octa-core (1×3.19 GHz Cortex-X2 & 3×2.75 GHz Cortex-A710 & 4×1.80 GHz Cortex-A510) GPU Adreno 730
Memory Card slot No Internal 128GB 8GB RAM, 256GB 8GB RAM, 512GB 8GB RAM UFS 3.1
Main Camera Dual 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 Features LED flash, HDR, panorama Video 4K@30/60fps, 1080p@60/240fps, 720p@960fps, HDR10+
Selfie camera Single 10 MP, f/2.4, 26mm (wide), 1.22m Features HDR Video 4K@30fps
Sound Loudspeaker Yes, with stereo speakers 3.5mm jack No 32-bit/384kHz audio Tuned by AKG
Comms WLAN Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct Bluetooth 5.2, A2DP, LE Positioning GPS, GLONASS, GALILEO, BDS NFC Yes Radio No USB USB Type-C 2.0, USB On-The-Go
Features Sensors Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, barometer Samsung Pay (Visa, MasterCard certified)
Battery Type Li-Po 3700 mAh, non-removable Charging 25W wired, 50% in 30 min (advertised) 15W wireless 4.5W reverse wireless
Misc Colors Bora Purple, Graphite, Pink Gold, Blue, Yellow, White, Navy, Khaki, Red Models SM-F721B, SM-F721B/DS, SM-F721N, SM-F721U, SM-F721U1, SM-F721W SAR 1.02 W/kg (head) 0.94 W/kg (body) SAR EU 1.15 W/kg (head) 1.20 W/kg (body) Price C$ 1,100.00 / ₹ 71,850 / $ 564.00 / £ 799.99 / € 789.90
Tests Performance AnTuTu: 685754 (v8) | 800001 (v9) GeekBench: 3913 (v5.1) GFXBench: 74fps (ES 3.1 onscreen) Display Contrast ratio: Infinite (nominal) Camera Photo / Video Loudspeaker -27.5 LUFS (Good)
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