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Samsung Galaxy S21 5G SM-G991B specifications Expand
Released 2021, January 29
169g (Sub6), 171g (mmWave), 7.9mm thickness
Android 11, One UI 3.1
128GB/256GB storage, no card slot

Samsung Galaxy S21 5G was announced at 2021, January 14 with Android 11, One UI 3.1, have chipset Exynos 2100 (5 nm) - International,Qualcomm SM8350 Snapdragon 888 5G (5 nm) - USA/China CPU Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International,Octa-core (1x2.84 GHz Kryo 680 & 3x2.42 GHz Kryo 680 & 4x1.80 GHz Kryo 680) - USA/China and GPU Mali-G78 MP14 - International,Adreno 660 - USA/China. It have 128GB 8GB RAM, 256GB 8GB RAM storage and there are colors: Phantom Gray, Phantom White, Phantom Violet, Phantom Pink

NETWORK
Technology
GSM / CDMA / HSPA / EVDO / LTE / 5G
2G
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (Dual SIM model only)
3G
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G
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-G991U1
5G
2, 5, 25, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave - SM-G991U1
Speed
HSPA 42.2/5.76 Mbps, LTE-A (CA), 5G
TIMELINE
Announced
2021, January 14
Released
Released 2021, January 29
BODY
Dimensions
151.7 x 71.2 x 7.9 mm (5.97 x 2.80 x 0.31 in)
Weight
169 g (Sub6), 171 g (mmWave) (5.96 oz)
Build
Glass front (Gorilla Glass Victus), plastic back, aluminum frame
SIM
Single SIM (Nano-SIM and/or eSIM) or Dual SIM (Nano-SIM and/or eSIM, dual stand-by)
DISPLAY
Type
Dynamic AMOLED 2X, 120Hz, HDR10+, 1300 nits (peak)
Size
6.2 inches, 94.1 cm2 (~87.2% screen-to-body ratio)
Resolution
1080 x 2400 pixels, 20:9 ratio (~421 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 (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International
Octa-core (1x2.84 GHz Kryo 680 & 3x2.42 GHz Kryo 680 & 4x1.80 GHz Kryo 680) - USA/China
GPU
Mali-G78 MP14 - International
Adreno 660 - USA/China
MEMORY
Card slot
No
Internal
128GB 8GB RAM, 256GB 8GB RAM
UFS 3.1
MAIN CAMERA
Camera
12 MP, f/1.8, 26mm (wide), 1/1.76", 1.8µm, Dual Pixel PDAF, OIS
64 MP, f/2.0, 29mm (telephoto), 1/1.72", 0.8µm, PDAF, OIS, 1.1x optical zoom, 3x hybrid zoom
12 MP, f/2.2, 13mm, 120˚ (ultrawide), 1/2.55" 1.4µm, 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
FRONT CAMERA
Camera
10 MP, f/2.2, 26mm (wide), 1/3.24", 1.22µm, Dual Pixel 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
COMMUNICATES
WLAN
Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, hotspot
Bluetooth
5.0, 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)
BATTERY
Battery
Li-Ion 4000 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 Gray, Phantom White, Phantom Violet, Phantom Pink
SAR US
0.74 W/kg (head)     1.08 W/kg (body)    
SAR EU
0.46 W/kg (head)     1.51 W/kg (body)    
Performance
AnTuTu: 584055 (v8)
GeekBench: 3238 (v5.1)
GFXBench: 60fps (ES 3.1 onscreen)
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Specs source: gsmarena.com
Disclaimer. We can not guarantee that the information on this page is 100% correct

Filter firmware

Samsung firmware SM-G991B / Galaxy S21 5G SM-G991B 27

Device CSC Version Bit/SW REV. Security Patch Lvl. OS Build date
Samsung Galaxy S21 5G BAT G991BXXSDGXI6 D  2024-10-01  Full Files U(Android 14) 20241023230210
Samsung Galaxy S21 5G BAT G991BXXUCGXH5 C  2024-08-01  Full Files U(Android 14) 20240822234251
Samsung Galaxy S21 5G BAT G991BXXSCGXF4 C  2024-07-01  Full Files U(Android 14) 20240706125950
Samsung Galaxy S21 5G BAT G991BXXSBGXE4 B  2024-05-01  Full Files U(Android 14) 20240516024211
Samsung Galaxy S21 5G BAT G991BXXS9FXAH 9  2024-02-01  Full Files U(Android 14) 20240131100011
Samsung Galaxy S21 5G BAT G991BXXU9FWK2 9  2023-11-01  Full Files U(Android 14) 20231124052400
Samsung Galaxy S21 5G BAT G991BXXU9EWI7 9  2023-09-01  Full Files T(Android 13) 20230928235250
Samsung Galaxy S21 5G BAT G991BXXS9EWI3 9  2023-09-01  Full Files T(Android 13) 20230916001120
Samsung Galaxy S21 5G BAT G991BXXU8EWF1 8  2023-06-01  Full Files T(Android 13) 20230616210641
Samsung Galaxy S21 5G BAT G991BXXU7EWCH 7  2023-04-01  Full Files T(Android 13) 20230419033011
Samsung Galaxy S21 5G BAT G991BXXU6EWAF 6  2023-02-01  Full Files T(Android 13) 20230210224510
Samsung Galaxy S21 5G BAT G991BXXU5DVKF 5  2022-12-01  Full Files T(Android 13) 20221217043920
Samsung Galaxy S21 5G BAT G991BXXS5CVIF 5  2022-10-01  Full Files S(Android 12) 20221011022801
Samsung Galaxy S21 5G BAT G991BXXU5CVH7 5  2022-08-01  Full Files S(Android 12) 20220910081411
Samsung Galaxy S21 5G BAT G991BXXU5CVGC 5  2022-08-01  Full Files S(Android 12) 20220730035220
Samsung Galaxy S21 5G BAT G991BXXU5CVDD 5  2022-05-01  Full Files S(Android 12) 20220510044430
Samsung Galaxy S21 5G BAT G991BXXU4CVC4 4  2022-03-01  Full Files S(Android 12) 20220319022630
Samsung Galaxy S21 5G BAT G991BXXU4BULF 4  2022-01-01  Full Files S(Android 12) 20220111053251
Samsung Galaxy S21 5G BAT G991BXXS3BULC 3  2021-12-01  Full Files S(Android 12) 20211228234900
Samsung Galaxy S21 5G BAT G991BXXU3AUIE 3  2021-10-01  Full Files R(Android 11) 20210930221131
Samsung Galaxy S21 5G BAT G991BXXU3AUHB 3  2021-08-01  Full Files R(Android 11) 20210902122533
Samsung Galaxy S21 5G BAT G991BXXU3AUG4 3  2021-07-01  Full Files R(Android 11) 20210805144834
Samsung Galaxy S21 5G BAT G991BXXU3AUF6 3  2021-06-01  Full Files R(Android 11) 20210614143438
Samsung Galaxy S21 5G BAT G991BXXU3AUE1 3  2021-05-01  Full Files R(Android 11) 20210503151009
Samsung Galaxy S21 5G BAT G991BXXU2AUC8 2  2021-04-01  Full Files R(Android 11) 20210322112406
Samsung Galaxy S21 5G BAT G991BXXU1AUB8 1  2021-02-01  Full Files R(Android 11) 20210219220905
Samsung Galaxy S21 5G BAT G991BXXU1AUA4 1  2021-01-01  Full Files R(Android 11) 20210114172434
Lastest combinations SM-G991B / Galaxy S21 5G SM-G991B
Device Version Bit/SW REV. FA Change list Updated
SM-G991B / Galaxy S21 5G G991BXXU5AVD1 5 FAR0 CL24116225 2024-05-13 20:41:46
SM-G991B / Galaxy S21 5G G991BXXU4AUL1 4 FAR0 CL23342197 2024-03-10 18:42:08
SM-G991B / Galaxy S21 5G G991BXXU3AUF1 3 FAR0 CL21875223 2021-09-23 01:35:30
SM-G991B / Galaxy S21 5G G991BXXU2AUD3 2 FAR0 CL21561395 2021-09-29 01:38:14
SM-G991B / Galaxy S21 5G G991BXXU1AUA3 1 FAR0 CL20796681 2021-05-13 15:18:00
All combinations
 How to flash Samsung SM-G991B / Galaxy S21 5G SM-G991B firmware

1. Extract (unzip) the Samsung firmware file. Recommended using WinRAR or 7-Zip

2. Download Odin Tool 3.13.1

3. Extract Odin ZIP file

4. Open Odin execute file

5. Reboot Samsung phone in Download Mode (hold Home + Power + Volume Down buttons / hold Volume Down + Bixby buttons then plug-in cable)

6. Connect you Samsung phone and wait until you get a blue sign in Odin

7. Add the 1 file Samsung firmware to AP/PDA or 4 files Samsung firmware (AP/BL/CP/CSC) to it's slots

8. Make sure re-partition is NOT ticked

9. Click the START button, sit back and wait few minutes

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