Samsung Galaxy S21 Ultra Radiation Levels
Head SARHead SAR
0.77 W/kg which is Ranked #30 at 48.13% of Legal Limit
0.77 W/kg which is Ranked #30 at 48.13% of Legal Limit
| Radiation Levels | HEAD (1g) | BODY (1g) | HOTSPOT (1g) |
|---|---|---|---|
| Cellular Only | 0.77 W/kg | 1.02 W/kg | 1.16 W/kg |
| Simultaneous | 1.17 W/kg | 1.57 W/kg | 1.59 W/kg |
Samsung Galaxy S21 Ultra SAR Level Summary:
The cellular transmission SAR values for the Samsung Galaxy S21 Ultra (FCC ID A3LSMG998U) are 0.77 W/kg (watts per kilogram) at the head and 1.02 W/kg when worn on the body. The hotspot/Airplay SAR level is 1.16 W/kg. The simultaneous transmission SAR values for Galaxy S21 Ultra (cellular plus Wi-Fi) is 1.17 W/kg at the head, 1.57 W/kg when worn on the body, and 1.59 W/kg when used as a hotspot simultaneously with other transmitters active.
View Thermal Visualization
Samsung Galaxy S21 Ultra 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 S21 Ultra 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 34.2%, and you can lower exposure to the body by 35%, 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 37.1% according to the FCC SAR report for device number A3LSMG998U.
Samsung Galaxy S21 Ultra SAR Levels
| RADIATION LEVELS | CELLULAR ONLY | (% DIFF) | SIMULTANEOUS |
|---|---|---|---|
| HEAD | 0.77 W/kg | 34.2% | 1.17 W/kg |
| BODY | 1.02 W/kg | 35% | 1.57 W/kg |
| HOTSPOT | 1.16 W/kg | 37.1% | 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-s21-ultra (FCC ID A3LSMG998U) are as follows:
- 0.77 W/kg when held at the head with cellular transmission only
- 1.02 W/kg when worn on the body with cellular transmission only
- 1.16 W/kg when used as a Hotspot or Airplay
- 1.17 W/kg when held at the head with simultaneous cellular and Wi-Fi transmission
- 1.57 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 S21 Ultra - SAR Levels
FCC SAR Levels
- FCC Approval Date This is the date the phone SAR test was completed before the phone's release to the public as required by law. 22 December 2020
- FCC ID The FCC ID is the code used to register a device for FCC compliance A3LSMG998U
- FCC Report Link A direct link to the FCC's website for confirming SAR levels that are listed on our website - We did the homework for you!
- US SAR Ratings USA Legal Limit is 1.6 W/kg USA Legal Limit is 1.6 W/kg - FCC SAR testing is measured in watts per kilogram (or W/kg) averaged over ONE gram of simulated biological tissue.
- Head SAR Level SAR test when held against your head when only using cellular service. Wifi and other transmitter are NOT active 0.77 W/kg
- Body SAR Level SAR test when held against your body only using cellular service. Wifi and other transmitter are NOT active 1.02 W/kg
- Product Specific Use SAR test when held against your body only using the phone as a hotspot. Cellular and other transmitter are NOT active 1.16 W/kg
- Simultaneous Transmission The highest possible SAR recorded with ALL transmitters active, Cellular, WiFi, and Hotspot 1.59 W/kg
- Simultaneous Head The highest possible SAR test when held against your HEAD with cellular and WiFi transmitters active, 1.17 W/kg
- Simultaneous Body The highest possible SAR test when held against your BODY with cellular and WiFi transmitters active, 1.57 W/kg
- Hotspot SAR The highest possible SAR test when held against your BODY using the phone as a hotspot with cellular and WiFi transmitters active, 1.59 W/kg
EU SAR Level
- EU SAR Ratings European Legal Limit is 2.0 W/kg - EU SAR testing is measured in watts per kilogram (or W/kg) averaged over TEN grams of simulated biological tissue.
- Head SAR Level 0.71 W/kg
- Body SAR Level 1.58 W/kg
A3LSMG998U-s21-ultra-sar-report
Versions: SM-G998B, SM-G998B/DS (International); SM-G998U (USA); SM-G998U1 (USA unlocked); SM-G998W (Canada); SM-G998N (Korea); SM-G9980 (China)
| Network | Technology | GSM / CDMA / HSPA / EVDO / LTE / 5G |
|---|---|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 – SIM 1 & SIM 2 (Dual SIM model only) | |
| CDMA 800 / 1900 & TD-SCDMA | ||
| 3G bands | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | |
| CDMA2000 1xEV-DO | ||
| 4G bands | 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 38, 39, 40, 41, 46, 48, 66, 71 – SM-G998U1 | |
| 5G bands | 2, 5, 25, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave – SM-G998U1 | |
| Speed | HSPA 42.2/5.76 Mbps, LTE-A (CA), 5G |
| Launch | Announced | 2021, January 14 |
|---|---|---|
| Status | Available. Released 2021, January 29 |
| Body | Dimensions | 165.1 x 75.6 x 8.9 mm (6.5 x 2.98 x 0.35 in) |
|---|---|---|
| Weight | 227 g (Sub6), 229 g (mmWave) (8.01 oz) | |
| Build | Glass front (Gorilla Glass Victus), glass back (Gorilla Glass Victus), aluminum frame | |
| SIM | Single SIM (Nano-SIM and/or eSIM) or Dual SIM (Nano-SIM and/or eSIM, dual stand-by) | |
| IP68 dust/water resistant (up to 1.5m for 30 mins) Stylus support |
| Display | Type | Dynamic AMOLED 2X, 120Hz, HDR10+, 1500 nits (peak) |
|---|---|---|
| Size | 6.8 inches, 112.1 cm2 (~89.8% screen-to-body ratio) | |
| Resolution | 1440 x 3200 pixels, 20:9 ratio (~515 ppi density) | |
| Protection | Corning Gorilla Glass Victus | |
| Always-on display |
| Platform | OS | Android 11, One UI 3.1 |
|---|---|---|
| Chipset | Exynos 2100 (5 nm) – International Qualcomm SM8350 Snapdragon 888 5G (5 nm) – USA/China | |
| CPU | Octa-core (1×2.9 GHz Cortex-X1 & 3×2.80 GHz Cortex-A78 & 4×2.2 GHz Cortex-A55) – International Octa-core (1×2.84 GHz Kryo 680 & 3×2.42 GHz Kryo 680 & 4×1.80 GHz Kryo 680) – USA/China | |
| GPU | Mali-G78 MP14 – International Adreno 660 – USA/China |
| Memory | Card slot | No |
|---|---|---|
| Internal | 128GB 12GB RAM, 256GB 12GB RAM, 512GB 12GB RAM, 512GB 16GB RAM | |
| UFS 3.1 |
| Main Camera | Quad | 108 MP, f/1.8, 24mm (wide), 1/1.33″, 0.8m, PDAF, Laser AF, OIS 10 MP, f/4.9, 240mm (periscope telephoto), 1/3.24″, 1.22m, dual pixel PDAF, OIS, 10x optical zoom 10 MP, f/2.4, 72mm (telephoto), 1/3.24″, 1.22m, dual pixel PDAF, OIS, 3x optical zoom 12 MP, f/2.2, 13mm (ultrawide), 1/2.55″, 1.4m, dual pixel PDAF, Super Steady video |
|---|---|---|
| Features | LED flash, auto-HDR, panorama | |
| Video | 8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS |
| Selfie camera | Single | 40 MP, f/2.2, 26mm (wide), 1/2.8″, 0.7m, PDAF |
|---|---|---|
| Features | Dual video call, Auto-HDR | |
| Video | 4K@30/60fps, 1080p@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/6e, dual-band, Wi-Fi Direct, hotspot |
|---|---|---|
| Bluetooth | 5.2, A2DP, LE | |
| GPS | Yes, with A-GPS, GLONASS, BDS, GALILEO | |
| NFC | Yes | |
| Radio | FM radio (Snapdragon model only; market/operator dependent) | |
| USB | USB Type-C 3.2, USB On-The-Go |
| Features | Sensors | Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer |
|---|---|---|
| Samsung DeX, Samsung Wireless DeX (desktop experience support) Bixby natural language commands and dictation Samsung Pay (Visa, MasterCard certified) Ultra Wideband (UWB) support |
| Battery | Type | Li-Ion 5000 mAh, non-removable |
|---|---|---|
| Charging | Fast charging 25W USB Power Delivery 3.0 Fast Qi/PMA wireless charging 15W Reverse wireless charging 4.5W |
| Misc | Colors | Phantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown, Navy |
|---|---|---|
| Models | SM-G998B, SM-G998B/DS, SM-G998U, SM-G998U1, SM-G998W, SM-G998N, SM-G9980 | |
| SAR | 0.77 W/kg (head) 1.02 W/kg (body) | |
| SAR EU | 0.71 W/kg (head) 1.58 W/kg (body) | |
| Price | $ 789.00 / € 1,079.00 / £ 949.99 / ₹ 101,600 |
| Tests | Performance | AnTuTu: 657150 (v8) GeekBench: 3518 (v5.1) GFXBench: 33fps (ES 3.1 onscreen) |
|---|---|---|
| Display | Contrast ratio: Infinite (nominal) | |
| Camera | Photo / Video | |
| Loudspeaker | -25.5 LUFS (Very good) | |
| Battery life | Endurance rating 114h |
Samsung Galaxy S21 Ultra - QuantaCase™
Samsung Galaxy S21 Ultra - FCC SAR Report Image
Samsung Galaxy S21 Ultra - Videos
Samsung Galaxy S21 Ultra - Offers
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