1. Home
  2. SM-G998U
  3. ATT
Samsung Galaxy S21 Ultra 5G SM-G998U 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-G998U / Galaxy S21 Ultra 5G SM-G998U 27

Device CSC Version Bit/SW REV. Security Patch Lvl. OS Build date
Samsung Galaxy S21 Ultra 5G ATT G998USQSEGXK3 E  Full Files U(Android 14) 20241204201341
Samsung Galaxy S21 Ultra 5G ATT G998USQSEGXJ4 E  Full Files U(Android 14) 20241105175241
Samsung Galaxy S21 Ultra 5G ATT G998USQSDGXJ2 D  Full Files U(Android 14) 20241009141900
Samsung Galaxy S21 Ultra 5G ATT G998USQSCGXH2 C  Full Files U(Android 14) 20240902150110
Samsung Galaxy S21 Ultra 5G ATT G998USQUCGXGA C  Full Files U(Android 14) 20240729173740
Samsung Galaxy S21 Ultra 5G ATT G998USQSCGXF3 C  Full Files U(Android 14) 20240628191421
Samsung Galaxy S21 Ultra 5G ATT G998USQSBGXF1 B  Full Files U(Android 14) 20240606203010
Samsung Galaxy S21 Ultra 5G ATT G998USQSBGXE2 B  Full Files U(Android 14) 20240509223300
Samsung Galaxy S21 Ultra 5G ATT G998USQUAGXDE A  Full Files U(Android 14) 20240419185841
Samsung Galaxy S21 Ultra 5G ATT G998USQSAFXD4 A  Full Files U(Android 14) 20240403172220
Samsung Galaxy S21 Ultra 5G ATT G998USQSAFXC4 A  Full Files U(Android 14) 20240304205530
Samsung Galaxy S21 Ultra 5G ATT G998USQSAFXAG A  Full Files U(Android 14) 20240201153451
Samsung Galaxy S21 Ultra 5G ATT G998USQS9FXA1 9  Full Files U(Android 14) 20240103144730
Samsung Galaxy S21 Ultra 5G ATT G998USQU9FWKC 9  Full Files U(Android 14) 20231129201930
Samsung Galaxy S21 Ultra 5G ATT G998USQS9EWK1 9  Full Files T(Android 13) 20231103210611
Samsung Galaxy S21 Ultra 5G ATT G998USQS9EWI2 9  Full Files T(Android 13) 20230927144950
Samsung Galaxy S21 Ultra 5G ATT G998USQS9EWI1 9  Full Files T(Android 13) 20230915175100
Samsung Galaxy S21 Ultra 5G ATT G998USQU8EWH6 8  Full Files T(Android 13) 20230818174211
Samsung Galaxy S21 Ultra 5G ATT G998USQS8EWH1 8  Full Files T(Android 13) 20230810213530
Samsung Galaxy S21 Ultra 5G ATT G998USQS8EWF1 8  Full Files T(Android 13) 20230703151240
Samsung Galaxy S21 Ultra 5G ATT G998USQU7EWE5 7  Full Files T(Android 13) 20230607182711
Samsung Galaxy S21 Ultra 5G ATT G998USQS6EWD4 6  Full Files T(Android 13) 20230505133611
Samsung Galaxy S21 Ultra 5G ATT G998USQU6EWD1 6  Full Files T(Android 13) 20230410140940
Samsung Galaxy S21 Ultra 5G ATT G998USQS6EWCA 6  Full Files T(Android 13) 20230328164820
Samsung Galaxy S21 Ultra 5G ATT G998USQS5EWB3 5  Full Files T(Android 13) 20230301141941
Samsung Galaxy S21 Ultra 5G ATT G998USQU5EWAI 5  Full Files T(Android 13) 20230207121101
Samsung Galaxy S21 Ultra 5G ATT G998USQU1ATLF 1  Full Files R(Android 11) 20201211091934
Lastest combinations SM-G998U / Galaxy S21 Ultra 5G SM-G998U
Device Version Bit/SW REV. FA Change list Updated
SM-G998U / Galaxy S21 Ultra 5G G998USQU4AUG4 4 FAR0 CL22210599 2024-05-14 01:26:33
SM-G998U / Galaxy S21 Ultra 5G G998USQU3AUD3 3 FAR0 CL21561395 2021-08-20 01:28:15
SM-G998U / Galaxy S21 Ultra 5G G998USQU2AUC3 2 FAR0 CL21221992 2021-10-12 17:47:29
SM-G998U / Galaxy S21 Ultra 5G G998USQU1AUA4 1 FAR0 CL20796634 2021-05-05 03:31:31
All combinations
 How to flash Samsung SM-G998U / Galaxy S21 Ultra 5G SM-G998U 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