Samsung Care Centre
📱 Samsung Galaxy Smartphone 🏷️ SM-G998B

Samsung Galaxy S21 Ultra 5G Downloads & Support Hub

Available resources for Samsung Galaxy S21 Ultra 5G (SM-G998B): 7 listed packages (2 Firmware Packages, 4 User Manuals, 1 Repair Guide), supporting Android. Check the model, platform, source, and file details before downloading.

PC Connectivity USB-C / ADB / MTP
Software Architecture One UI / Android OS
Repository Index 7 Files Available
Galaxy S21 Ultra 5G (SM-G998B) product image
Device Profile
📖

Device Overview & Connection Guide

Hardware summary, PC connection guide, and available resources for Samsung Galaxy S21 Ultra 5G
Device Guide

Featuring a 108 MP quad-camera system and a bright 6.8-inch screen, the Galaxy S21 Ultra 5G (model SM-G998B) makes capturing everyday photos and watching media enjoyable and crisp. It comes equipped with a 5,000 mAh battery and 12GB of RAM, offering dependable battery life and snappy performance.

Connecting this model to your PC or laptop is simple with the official Samsung USB driver packages listed below. Proper driver setup prevents connection drops when backing up files or running maintenance utilities. If you are switching phones or backing up your data, Samsung Smart Switch provides a fast, one-click backup solution for your computer.

Check the download library below to get the latest USB drivers, user manual, and verified firmware packages for model SM-G998B.

📦 Available Download Packages

Filter software packages by technical component category:

Showing all 7 packages
Region / Market:
⚡ Stock ROM 🇺🇸 USA (XAA)

Galaxy S21 Ultra 5G USA Stock Firmware (XAA - G998U1UESJHZB1)

Build: G998U1UESJHZB1 • Android 15 • Size: 8 GB • Date: Mar 2026
⚡ Stock ROM 🇮🇳 India (INU)

Galaxy S21 Ultra 5G Factory Stock Firmware (INU - G998BXXSJHZC2)

Build: G998BXXSJHZC2 • Android 15 • Size: 9 GB • Date: Mar 2026
PDF Manual 🌐 Global

Repair Guide

Version: 1.1 • Repair Guide • Size: 37 MB
PDF Manual AE

User Manual (English)

Version: 1.0.0 • Android 12 • Size: 4 MB
PDF Manual AE

User Manual (English)

Version: 1.1 • Android 11 • Size: 4 MB
PDF Manual AE

User Manual (English)

Version: 2.0.0 • Android 13 • Size: 4 MB
PDF Manual AE

User Manual (English)

Version: 2.0.1 • Android • Size: 5 MB
Technical specification profile 🏷️ SKU: SM-G998BZKGINU

📋 Samsung Galaxy S21 Ultra 5G Technical Specifications

Listed technical specifications for this model (14 categories, 62 attributes). Check the exact model code before relying on these details.

📱 Display
6.8" Dynamic AMOLED 2X
⚡ Processor
Octa-Core (Up to 2.9GHz)
📷 Cameras
108 MP Quad Rear (Rear) / 40 MP (Front)
💾 RAM / Storage
12 GB / 256 GB
🔋 Battery
5,000 mAh
⚖️ Weight
227 g
💳 NFC & Samsung Wallet Enabled 📷 Hardware OIS Stabilization 🎬 8K Ultra-HD Video Recording 🖥️ Samsung DeX Desktop Multitasking
Showing all 14 categories

📱 Display

4
Size (Main Display) 17.30cm (6.8") full rectangle / 16.87cm (6.6") rounded corners
Resolution (Main Display) 3200 x 1440 (Quad HD+)
Technology (Main Display) Dynamic AMOLED 2X
Colour Depth (Main Display) 16M

📐 Physical specification

2
Dimension (HxWxD, mm) 165.1 x 75.6 x 8.9
Weight (g) 227

🔋 Battery

7
Internet Usage Time(LTE) (Hours) Up to 18
Internet Usage Time(Wi-Fi) (Hours) Up to 18
Video Playback Time (Hours, Wireless) Up to 22
Battery Capacity (mAh, Typical) 5000
Removable No
Audio Playback Time (Hours, Wireless) Up to 81
Talk Time (4G LTE) (Hours) Up to 41

📶 Network/Bearer

10
Number of SIM Dual-SIM
SIM size Nano-SIM (4FF), Embedded-SIM
SIM Slot Type SIM 1 + SIM 2 or Embedded SIM
Infra 2G GSM, 3G WCDMA, 4G LTE FDD, 4G LTE TDD, 5G Sub6 FDD, 5G Sub6 TDD
2G GSM GSM850, GSM900, DCS1800, PCS1900
3G UMTS B1(2100), B2(1900), B4(AWS), B5(850), B8(900)
4G FDD LTE B1(2100), B2(1900), B3(1800), B4(AWS), B5(850), B7(2600), B8(900), B12(700), B13(700), B17(700), B18(800), B19(800), B20(800), B25(1900), B26(850), B28(700), B32(1500), B66(AWS-3)
4G TDD LTE B38(2600), B39(1900), B40(2300), B41(2500)
5G* FDD Sub6 N1(2100), N3(1800), N5(850), N7(2600), N8(900), N20(800), N28(700), N66(AWS-3)
5G* TDD Sub6 N38(2600), N40(2300), N41(2500), N77(3700), N78(3500)

🎬 Audio and Video

4
Stereo Support Yes
Video Playing Format MP4, M4V, 3GP, 3G2, AVI, FLV, MKV, WEBM
Video Playing Resolution UHD 8K (7680 x 4320)@60fps
Audio Playing Format MP3, M4A, 3GA, AAC, OGG, OGA, WAV, AMR, AWB, FLAC, MID, MIDI, XMF, MXMF, IMY, RTTTL, RTX, OTA, DFF, DSF, APE

ℹ️ General Information

1
Form Factor Touchscreen Bar

✨ Services and Applications

4
Gear Support Galaxy Buds Pro, Galaxy Buds Live, Galaxy Buds+, Galaxy Buds, Galaxy Fit2, Galaxy Fit e, Galaxy Fit, Galaxy Watch3, Galaxy Watch, Galaxy Watch Active2, Galaxy Watch Active, Gear Fit2 Pro, Gear Fit2, Gear Sport, Gear S3, Gear S2, Gear IconX (2018)
Samsung DeX Support Yes
S-Voice No
Mobile TV No

💾 Storage/Memory

3
Memory (GB) 12
Storage (GB) 256
Available Storage (GB) 220.1

⚡ Processor

2
CPU Speed 2.9GHz, 2.8GHz, 2.2GHz
CPU Type Octa-Core

📷 Camera

12
Rear Camera - Resolution (Multiple) 108.0 MP + 10.0 MP + 12.0 MP + 10.0 MP
Rear Camera - F Number (Multiple) F1.8 , F4.9 , F2.2 , F2.4
Rear Camera - Auto Focus Yes
Rear Camera - OIS Yes
Rear Camera - Zoom Optical Zoom at 3x and 10x , Digital Zoom up to 100x
Front Camera - Resolution 40.0 MP
Front Camera - F Number F2.2
Front Camera - Auto Focus Yes
Rear Camera - Flash Yes
Rear Camera - Laser AF Sensor Yes
Video Recording Resolution UHD 8K (7680 x 4320)@24fps
Slow Motion 960fps @HD, 240fps @FHD

🔌 Connectivity

10
USB Interface USB Type-C
USB Version USB 3.2 Gen 1
Location Technology GPS, Glonass, Beidou, Galileo
Earjack USB Type-C
MHL No
Wi-Fi 802.11 a/b/g/n/ac/ax 2.4G+5GHz, HE160, MIMO, 1024-QAM
Wi-Fi Direct Yes
Bluetooth Version Bluetooth v5.2
NFC Yes
UWB (Ultra Wideband) Yes

🧭 Sensors

1
Sensors Accelerometer, Barometer, Fingerprint Sensor, Gyro Sensor, Geomagnetic Sensor, Hall Sensor, Light Sensor, Proximity Sensor

🤖 OS

1
OS Android

📌 S Pen Support

1
S Pen Support Yes
🏭 Manufacturer, Regulatory & Import Information
Manufactured by Samsung Electronics Vietnam Co., Ltd. Yen Phong 1 Industrial Zone, Yen Trung Commune, Yen Phong Dist, Bac Ninh, Vietnam 220000
Country of Origin Vietnam
Imported by Samsung India Electronics Pvt. Ltd. having its Registered Office at: 6th Floor, DLF Centre, Sansad Marg, New Delhi-110001
Contact us For All Product Related Complaints/assistance, please contact Manager, Customer Care Samsung India Electronics Pvt. Ltd., 6th Floor, DLF Centre, Sansad Marg, New Delhi - 110001 Email us at: support.india@samsung.com Tel (Toll Free): 1800 40 7267864 (1800 40 SAMSUNG)
ℹ️ Official Specification Footnotes, IEC Standards & Network Disclaimers
* Network : The bandwidths supported by the device may vary depending on the region or service provider.
* Battery: Actual battery life varies by network environment, features and apps used, frequency of calls and messages, number of times charged, and many other factors.
* User Available Memory: Actual user memory will vary depending on the operator and may change after software upgrades are performed.
Display Size: Measured diagonally, Galaxy S21 Ultra 5G's screen size is 17.3cm (6.8") in the full rectangle and 16.87cm (6.6") with accounting for the rounded corners; actual viewable area is less due to the rounded corners and camera hole.
Battery Capacity (Typical): Typical value tested under third-party laboratory condition. Typical value is the estimated average value considering the deviation in battery capacity among the battery samples tested under IEC 61960 standard. Rated (minimum) capacity is 4855mAh for Galaxy S21 Ultra 5G. Actual battery life may vary depending on network environment, usage patterns and other factors.
Network: 5G network availability may vary depending on the country, network provider and user environment.
UWB: Availability of UWB function may vary by regions and/or by applicable law.
Hardware & Repair Support

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