1. Home
  2. SM-G998U1
  3. ATT
Samsung Galaxy S21 Ultra 5G SM-G998U1 specifications Expand
Released 2021, January 29
227g (Sub6), 229g (mmWave), 8.9mm thickness
Android 11, One UI 3.1
128GB/256GB/512GB storage, no card slot

Samsung Galaxy S21 Ultra 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 12GB RAM, 256GB 12GB RAM, 512GB 16GB RAM storage and there are colors: Phantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown

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-G998U1
5G
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
TIMELINE
Announced
2021, January 14
Released
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)
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 (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 12GB RAM, 256GB 12GB RAM, 512GB 16GB RAM
UFS 3.1
MAIN CAMERA
Camera
108 MP, f/1.8, 24mm (wide), 1/1.33", 0.8µm, PDAF, Laser AF, OIS
10 MP, f/4.9, 240mm (periscope telephoto), 1/3.24", 1.22µm, dual pixel PDAF, OIS, 10x optical zoom
10 MP, f/2.4, 70mm (telephoto), 1/3.24", 1.22µm, dual pixel PDAF, OIS, 3x optical zoom
12 MP, f/2.2, 13mm (ultrawide), 1/2.55", 1.4µm, 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
FRONT CAMERA
Camera
40 MP, f/2.2, 26mm (wide), 1/2.8", 0.7µm, 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/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
Battery
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
SAR US
0.77 W/kg (head)     1.02 W/kg (body)    
SAR EU
0.71 W/kg (head)     1.58 W/kg (body)    
Performance
AnTuTu: 657150 (v8)
GeekBench: 3518 (v5.1)
GFXBench: 33fps (ES 3.1 onscreen)
Buy on Amazon

Specs source: gsmarena.com
Disclaimer. We can not guarantee that the information on this page is 100% correct

Filter firmware

Samsung firmware SM-G998U1 / Galaxy S21 Ultra 5G SM-G998U1 62

Device CSC Version Bit/SW REV. Security Patch Lvl. OS Build date
Samsung Galaxy S21 Ultra 5G ATT G998U1UESDGXJ1 D  2024-10-01  Full Files U(Android 14) 20241009181840
Samsung Galaxy S21 Ultra 5G ATT G998U1UESCGXH1 C  2024-09-01  Full Files U(Android 14) 20240830135510
Samsung Galaxy S21 Ultra 5G ATT G998U1UEUCGXGB C  2024-08-01  Full Files U(Android 14) 20240729152100
Samsung Galaxy S21 Ultra 5G ATT G998U1UESCGXF3 C  2024-07-01  Full Files U(Android 14) 20240702140720
Samsung Galaxy S21 Ultra 5G ATT G998U1UESBGXF1 B  2024-06-01  Full Files U(Android 14) 20240607143133
Samsung Galaxy S21 Ultra 5G ATT G998U1UESBGXE1 B  2024-05-01  Full Files U(Android 14) 20240515014930
Samsung Galaxy S21 Ultra 5G ATT G998U1UEUAGXDE A  2024-04-01  Full Files U(Android 14) 20240419225241
Samsung Galaxy S21 Ultra 5G ATT G998U1UESAFXD1 A  2024-04-01  Full Files U(Android 14) 20240404031430
Samsung Galaxy S21 Ultra 5G ATT G998U1UESAFXBC A  2024-03-01  Full Files U(Android 14) 20240307000020
Samsung Galaxy S21 Ultra 5G ATT G998U1UESAFXAB A  2024-02-01  Full Files U(Android 14) 20240201173500
Samsung Galaxy S21 Ultra 5G ATT G998U1UES9FXA1 9  2024-01-01  Full Files U(Android 14) 20240105195241
Samsung Galaxy S21 Ultra 5G ATT G998U1UEU9FWL3 9  2023-12-01  Full Files U(Android 14) 20231213141241
Samsung Galaxy S21 Ultra 5G ATT G998U1UEU9EWL2 9  2023-12-01  Full Files T(Android 13) 20231208200720
Samsung Galaxy S21 Ultra 5G ATT G998U1UES9EWK1 9  2023-11-01  Full Files T(Android 13) 20231106212430
Samsung Galaxy S21 Ultra 5G ATT G998U1UES9EWI3 9  2023-10-01  Full Files T(Android 13) 20231003151051
Samsung Galaxy S21 Ultra 5G ATT G998U1UEU9EWI2 9  2023-09-01  Full Files T(Android 13) 20230922160611
Samsung Galaxy S21 Ultra 5G ATT G998U1UES9EWI1 9  2023-09-01  Full Files T(Android 13) 20230912154040
Samsung Galaxy S21 Ultra 5G ATT G998U1UES8EWG3 8  2023-08-01  Full Files T(Android 13) 20230728125840
Samsung Galaxy S21 Ultra 5G ATT G998U1UES8EWF6 8  2023-07-01  Full Files T(Android 13) 20230704143621
Samsung Galaxy S21 Ultra 5G ATT G998U1UEU7EWF4 7  2023-06-01  Full Files T(Android 13) 20230619201230
Samsung Galaxy S21 Ultra 5G ATT G998U1UES7EWE1 7  2023-06-01  Full Files T(Android 13) 20230602144910
Samsung Galaxy S21 Ultra 5G ATT G998U1UES6EWD6 6  2023-05-01  Full Files T(Android 13) 20230420205840
Samsung Galaxy S21 Ultra 5G ATT G998U1UEU6EWD1 6  2023-04-01  Full Files T(Android 13) 20230411160850
Samsung Galaxy S21 Ultra 5G ATT G998U1UES6EWC9 6  2023-04-01  Full Files T(Android 13) 20230330142311
Samsung Galaxy S21 Ultra 5G ATT G998U1UES5EWB5 5  2023-03-01  Full Files T(Android 13) 20230227173001
Samsung Galaxy S21 Ultra 5G ATT G998U1UES5DWB2 5  2023-02-01  Full Files T(Android 13) 20230210131110
Samsung Galaxy S21 Ultra 5G ATT G998U1UEU5EWB1 5  2023-02-01  Full Files T(Android 13) 20230215151910
Samsung Galaxy S21 Ultra 5G ATT G998U1UES5DWA4 5  2023-01-01  Full Files T(Android 13) 20230124153710
Samsung Galaxy S21 Ultra 5G ATT G998U1UES5DWA2 5  2022-12-01  Full Files T(Android 13) 20230106191631
Samsung Galaxy S21 Ultra 5G ATT G998U1UEU5DVL1 5  2022-11-01  Full Files T(Android 13) 20221206132110
Samsung Galaxy S21 Ultra 5G ATT G998U1UES5CVI8 5  2022-10-01  Full Files S(Android 12) 20220919185550
Samsung Galaxy S21 Ultra 5G ATT G998U1UES5CVHB 5  2022-09-01  Full Files S(Android 12) 20220831141440
Samsung Galaxy S21 Ultra 5G ATT G998U1UEU5CVH9 5  2022-08-01  Full Files S(Android 12) 20220820075040
Samsung Galaxy S21 Ultra 5G ATT G998U1UEU5CVGB 5  2022-08-01  Full Files S(Android 12) 20220728091601
Samsung Galaxy S21 Ultra 5G ATT G998U1UEU5CVG9 5  2022-07-01  Full Files S(Android 12) 20220722060250
Samsung Galaxy S21 Ultra 5G ATT G998U1UES5CVF5 5  2022-07-01  Full Files S(Android 12) 20220627085910
Samsung Galaxy S21 Ultra 5G ATT G998U1UEU5CVF1 5  2022-06-01  Full Files S(Android 12) 20220608084610
Samsung Galaxy S21 Ultra 5G ATT G998U1UEU5CVDC 5  2022-05-01  Full Files S(Android 12) 20220422141551
Samsung Galaxy S21 Ultra 5G ATT G998U1UES5CVCB 5  2022-04-01  Full Files S(Android 12) 20220325110230
Samsung Galaxy S21 Ultra 5G ATT G998U1UEU5CVC4 5  2022-03-01  Full Files S(Android 12) 20220310035950
Samsung Galaxy S21 Ultra 5G ATT G998U1UES5BVC1 5  2022-03-01  Full Files S(Android 12) 20220305094231
Samsung Galaxy S21 Ultra 5G ATT G998U1UES5BVA6 5  2022-02-01  Full Files S(Android 12) 20220127115300
Samsung Galaxy S21 Ultra 5G ATT G998U1UEU5BULH 5  2022-01-01  Full Files S(Android 12) 20220104160200
Samsung Galaxy S21 Ultra 5G ATT G998U1UES4BULE 4  2022-01-01  Full Files S(Android 12) 20211228120400
Samsung Galaxy S21 Ultra 5G ATT G998U1UES4BUKK 4  2021-12-01  Full Files S(Android 12) 20211222080730
Samsung Galaxy S21 Ultra 5G ATT G998U1UEU4BUKF 4  2021-11-01  Full Files S(Android 12) 20211123075700
Samsung Galaxy S21 Ultra 5G ATT G998U1UEU4BUK7 4  2021-11-01  Full Files S(Android 12) 20211105234401
Samsung Galaxy S21 Ultra 5G ATT G998U1UES4AUJ7 4  2021-11-01  Full Files R(Android 11) 20211020155708
Samsung Galaxy S21 Ultra 5G ATT G998U1UES4AUIN 4  2021-10-01  Full Files R(Android 11) 20210929152435
Samsung Galaxy S21 Ultra 5G ATT G998U1UEU4AUI7 4  2021-09-01  Full Files R(Android 11) 20210907114106
Samsung Galaxy S21 Ultra 5G ATT G998U1UES4AUH9 4  2021-09-01  Full Files R(Android 11) 20210817104805
Samsung Galaxy S21 Ultra 5G ATT G998U1UEU4AUGQ 4  2021-08-01  Full Files R(Android 11) 20210803082105
Samsung Galaxy S21 Ultra 5G ATT G998U1UES4AUFD 4  2021-07-01  Full Files R(Android 11) 20210621202237
Samsung Galaxy S21 Ultra 5G ATT G998U1UEU4AUF5 4  2021-06-01  Full Files R(Android 11) 20210605081143
Samsung Galaxy S21 Ultra 5G ATT G998U1UES3AUE3 3  2021-06-01  Full Files R(Android 11) 20210514133137
Samsung Galaxy S21 Ultra 5G ATT G998U1UEU3AUDD 3  2021-05-01  Full Files R(Android 11) 20210501123806
Samsung Galaxy S21 Ultra 5G ATT G998U1UEU2AUC8 2  2021-04-01  Full Files R(Android 11) 20210319175606
Samsung Galaxy S21 Ultra 5G ATT G998U1UEU2AUB6 2  2021-03-01  Full Files R(Android 11) 20210225094236
Samsung Galaxy S21 Ultra 5G ATT G998U1UEU1AUAJ 1  2021-02-01  Full Files R(Android 11) 20210204095734
Samsung Galaxy S21 Ultra 5G ATT G998U1UEU1AUAG 1  2021-02-01  Full Files R(Android 11) 20210201082605
Samsung Galaxy S21 Ultra 5G ATT G998U1UEU1AUA3 1  2021-01-01  Full Files R(Android 11) 20210106161334
Samsung Galaxy S21 Ultra 5G ATT G998U1UEU1ATLI 1  Full Files R(Android 11) 20201216095534
Lastest combinations SM-G998U1 / Galaxy S21 Ultra 5G SM-G998U1
Device Version Bit/SW REV. FA Change list Updated
SM-G998U1 / Galaxy S21 Ultra 5G G998U1SQU1AUA4 1 FAR0 CL20796634 2021-05-05 03:22:56
All combinations
 How to flash Samsung SM-G998U1 / Galaxy S21 Ultra 5G SM-G998U1 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

Read more

Comment with us

I am so sorry! 😟

But please disable AdBlock. Because Samfw is Free. But we need money to keep server running. Ads is only benifit for keep Samfw running Free. Thank you!

👍 Understood. I turned it off ❓ How to disable AdBlock/AdBlockPlus? 👑 Upgrade to Premium membership with Ads free and special permissions
😔 I do not want to help
❌

How to disable AdBlock

Adblock / Adblock Plus   
  • Click AdBlock or AdBlock Plus icon at the browser menu.
  • Click Don't run on pages on this site. or Enabled on this site then press Exclude or Switch off BLOCK ADS ON