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Samsung Galaxy S21 5G SM-G991U 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-G991U / Galaxy S21 5G SM-G991U 55

Device CSC Version Bit/SW REV. Security Patch Lvl. OS Build date
Samsung Galaxy S21 5G SPR G991USQSEGXK3 E  2024-12-01  Full Files U(Android 14) 20241204151251
Samsung Galaxy S21 5G SPR G991USQSEGXJ4 E  2024-11-01  Full Files U(Android 14) 20241104180210
Samsung Galaxy S21 5G SPR G991USQSDGXJ2 D  2024-10-01  Full Files U(Android 14) 20241010175211
Samsung Galaxy S21 5G SPR G991USQSCGXH2 C  2024-09-01  Full Files U(Android 14) 20240830140800
Samsung Galaxy S21 5G SPR G991USQUCGXGA C  2024-08-01  Full Files U(Android 14) 20240729153540
Samsung Galaxy S21 5G SPR G991USQSCGXF3 C  2024-07-01  Full Files U(Android 14) 20240702142100
Samsung Galaxy S21 5G SPR G991USQSBGXF1 B  2024-06-01  Full Files U(Android 14) 20240607141130
Samsung Galaxy S21 5G SPR G991USQSBGXE2 B  2024-05-01  Full Files U(Android 14) 20240515140751
Samsung Galaxy S21 5G SPR G991USQUAGXDE A  2024-04-01  Full Files U(Android 14) 20240419231620
Samsung Galaxy S21 5G SPR G991USQSAFXD3 A  2024-04-01  Full Files U(Android 14) 20240403152040
Samsung Galaxy S21 5G SPR G991USQSAFXC2 A  2024-03-01  Full Files U(Android 14) 20240315195510
Samsung Galaxy S21 5G SPR G991USQSAFXAI A  2024-02-01  Full Files U(Android 14) 20240201124550
Samsung Galaxy S21 5G SPR G991USQS9FXA3 9  2024-01-01  Full Files U(Android 14) 20240108162450
Samsung Galaxy S21 5G SPR G991USQS9FWL2 9  2023-12-01  Full Files U(Android 14) 20231208143940
Samsung Galaxy S21 5G SPR G991USQU9FWK9 9  2023-11-01  Full Files U(Android 14) 20231120180840
Samsung Galaxy S21 5G SPR G991USQS9EWK1 9  2023-11-01  Full Files T(Android 13) 20231106153351
Samsung Galaxy S21 5G SPR G991USQS9EWI2 9  2023-10-01  Full Files T(Android 13) 20230927162001
Samsung Galaxy S21 5G SPR G991USQS9EWI1 9  2023-09-01  Full Files T(Android 13) 20230913134910
Samsung Galaxy S21 5G SPR G991USQU8EWH6 8  2023-08-01  Full Files T(Android 13) 20230810203400
Samsung Galaxy S21 5G SPR G991USQS8EWG1 8  2023-07-01  Full Files T(Android 13) 20230707185340
Samsung Galaxy S21 5G SPR G991USQU7EWF4 7  2023-06-01  Full Files T(Android 13) 20230619151911
Samsung Galaxy S21 5G SPR G991USQS7EWF1 7  2023-06-01  Full Files T(Android 13) 20230608161041
Samsung Galaxy S21 5G SPR G991USQS6EWD4 6  2023-05-01  Full Files T(Android 13) 20230502133741
Samsung Galaxy S21 5G SPR G991USQU6EWD1 6  2023-04-01  Full Files T(Android 13) 20230406130040
Samsung Galaxy S21 5G SPR G991USQS5EWB3 5  2023-03-01  Full Files T(Android 13) 20230302195901
Samsung Galaxy S21 5G SPR G991USQU5EWAI 5  2023-02-01  Full Files T(Android 13) 20230202143540
Samsung Galaxy S21 5G SPR G991USQS5DWA5 5  2023-01-01  Full Files T(Android 13) 20230116154041
Samsung Galaxy S21 5G SPR G991USQU5DVL9 5  2022-12-01  Full Files T(Android 13) 20230102140310
Samsung Galaxy S21 5G SPR G991USQS5DVK7 5  2022-11-01  Full Files T(Android 13) 20221121182021
Samsung Galaxy S21 5G SPR G991USQU5DVK3 5  2022-10-01  Full Files T(Android 13) 20221103002401
Samsung Galaxy S21 5G SPR G991USQU5CVIF 5  2022-10-01  Full Files S(Android 12) 20220926083440
Samsung Galaxy S21 5G SPR G991USQS5CVHC 5  2022-09-01  Full Files S(Android 12) 20220901123520
Samsung Galaxy S21 5G SPR G991USQU5CVH9 5  2022-08-01  Full Files S(Android 12) 20220822113430
Samsung Galaxy S21 5G SPR G991USQU5CVGB 5  2022-08-01  Full Files S(Android 12) 20220728074910
Samsung Galaxy S21 5G SPR G991USQU5CVG4 5  2022-07-01  Full Files S(Android 12) 20220713091511
Samsung Galaxy S21 5G SPR G991USQU5CVF3 5  2022-06-01  Full Files S(Android 12) 20220615141200
Samsung Galaxy S21 5G SPR G991USQU5CVDB 5  2022-05-01  Full Files S(Android 12) 20220422102210
Samsung Galaxy S21 5G SPR G991USQU5CVCG 5  2022-04-01  Full Files S(Android 12) 20220402231100
Samsung Galaxy S21 5G SPR G991USQU5CVC4 5  2022-03-01  Full Files S(Android 12) 20220309133350
Samsung Galaxy S21 5G SPR G991USQS5BVA6 5  2022-02-01  Full Files S(Android 12) 20220124164200
Samsung Galaxy S21 5G SPR G991USQU5BULJ 5  2022-01-01  Full Files S(Android 12) 20220103075801
Samsung Galaxy S21 5G SPR G991USQS4BUKK 4  2021-12-01  Full Files S(Android 12) 20211222095501
Samsung Galaxy S21 5G SPR G991USQU4BUKF 4  2021-11-01  Full Files S(Android 12) 20211123091800
Samsung Galaxy S21 5G SPR G991USQU4BUK7 4  2021-11-01  Full Files S(Android 12) 20211106083930
Samsung Galaxy S21 5G SPR G991USQS4AUIR 4  2021-10-01  Full Files R(Android 11) 20211005153535
Samsung Galaxy S21 5G SPR G991USQU4AUIL 4  2021-09-01  Full Files R(Android 11) 20210925155403
Samsung Galaxy S21 5G SPR G991USQS4AUI1 4  2021-09-01  Full Files R(Android 11) 20210903095200
Samsung Galaxy S21 5G SPR G991USQU4AUGQ 4  2021-08-01  Full Files R(Android 11) 20210803125004
Samsung Galaxy S21 5G SPR G991USQS4AUFD 4  2021-07-01  Full Files R(Android 11) 20210622201038
Samsung Galaxy S21 5G SPR G991USQU4AUF5 4  2021-06-01  Full Files R(Android 11) 20210607102308
Samsung Galaxy S21 5G SPR G991USQU3AUDD 3  2021-05-01  Full Files R(Android 11) 20210503081707
Samsung Galaxy S21 5G SPR G991USQU2AUC8 2  2021-04-01  Full Files R(Android 11) 20210320132135
Samsung Galaxy S21 5G SPR G991USQU2AUB5 2  2021-03-01  Full Files R(Android 11) 20210224092035
Samsung Galaxy S21 5G SPR G991USQU1AUAG 1  2021-02-01  Full Files R(Android 11) 20210201111204
Samsung Galaxy S21 5G SPR G991USQU1AUA3 1  2021-01-01  Full Files R(Android 11) 20210121090805
Lastest combinations SM-G991U / Galaxy S21 5G SM-G991U
Device Version Bit/SW REV. FA Change list Updated
SM-G991U / Galaxy S21 5G G991USQU3AUD3 3 FAR0 CL21561395 2021-09-23 01:47:29
SM-G991U / Galaxy S21 5G G991USQU2AUC3 2 FAR0 CL21221992 2021-10-12 17:37:14
SM-G991U / Galaxy S21 5G G991USQU1AUA5 1 FAR0 CL20796681 2021-05-13 15:22:16
All combinations
 How to flash Samsung SM-G991U / Galaxy S21 5G SM-G991U 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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