SM-G991U Galaxy S21 5G UW Dual SIM TD-LTE US 256GB - SM-G991R4 Specifications
![SM-G991U Galaxy S21 5G UW Dual SIM TD-LTE US 256GB - SM-G991R4 specs](https://d1s5v1wclvrq5b.cloudfront.net/device-img/samsung_galaxy_s21_4.jpg?format=webp&width="undefined"} "SM-G991U Galaxy S21 5G UW Dual SIM TD-LTE US 256GB - SM-G991R4 specs")
Released
Jan 2021Display
6.2 inches1080x2400 pixels
Camera
12.2 Mp main, 10.0 Mp FrontalHardware
Qualcomm Snapdragon 888 5G SM8350 (Lahaina)8 GB RAM
Storage
256 GBBattery
Li-ion 4000 mAhOS
Google Android 11 (R)General details and specifications.
Brief
Witness the fastest chip ever in a Galaxy. With a 5nm processor on board, you get seamless multitasking and hyper-fast content streaming. UWB 5G dual SIM 256 GB variant of Galaxy S21 for USCC
Device Name
SM-G991U Galaxy S21 5G UW Dual SIM TD-LTE US 256GB - SM-G991R4
Code Name
Samsung Unbound M1
Hardware Designer
Samsung Electronics
Manufacturer
Samsung Electronics
Display
Size
6.2 inches.
Resolution
1080x2400
Camera
Main camera
12.2 MP
Resolution
4032x3024 pixels
Aux Camera
12.2
Aux Camera 2
64.4MP
Secondary Camera
10.0 MP
Resolution
3648x2736 pixels
Focus
PD AF
Aperture
f/2.20
Video recording
7680x4320
Video frame
24
Hardware
Processor
Qualcomm Snapdragon 888 5G SM8350 (Lahaina)
RAM
8 GB
Internal storage
256
Device type
Smartphone
OS
Google Android 11 (R)
Cellular Brands
GSM
GSM850 GSM900 GSM1800 GSM1900 .
UTMS
UMTS850 (B5) UMTS900 (B8) UMTS1700/2100 (B4) UMTS1900 (B2) UMTS2100 (B1)
LTE
LTE700 (B13) LTE1700/2100 (B4) LTE850 (B5) LTE2600 (B7) LTE1900 (B2) LTE1900 (B25) LTE700 (B12) LTE850 (B26) LTE700 (B29) LTE1700/2100 (B66) LTE600 (B71)
TD-LTE
TD-LTE2500 (B41) TD-LTE2600 (B38) TD-LTE2300 (B40) TD-LTE1900 (B39) TD-LTE5900 (B46) TD-LTE3600 (B48)
NR
NR600 (N71) NR1900 (N2) NR1700/2100 (N66)
TD-NR
TD-NR28G (N261)
Model Variants Specifications
SM-G991B-DS GALAXY S21 5G GLOBAL DUAL SIM TD-LTE 128GB
Hardware
Samsung Exynos 2100 5G8 GB RAM
Storage
128 GBSM-G991B-DS GALAXY S21 5G GLOBAL DUAL SIM TD-LTE 256GB
Hardware
Samsung Exynos 2100 5G8 GB RAM
Storage
256 GBSM-G991W GALAXY S21 5G DUAL SIM TD-LTE CA 128GB
Hardware
Qualcomm Snapdragon 888 5G SM8350 (Lahaina)8 GB RAM
Storage
128 GBSM-G991W GALAXY S21 5G DUAL SIM TD-LTE CA 256GB
Hardware
Qualcomm Snapdragon 888 5G SM8350 (Lahaina)8 GB RAM
Storage
256 GBSM-G991U1 GALAXY S21 5G UW DUAL SIM TD-LTE US 128GB
Hardware
Qualcomm Snapdragon 888 5G SM8350 (Lahaina)8 GB RAM
Storage
128 GBSM-G991U1 GALAXY S21 5G UW DUAL SIM TD-LTE US 256GB
Hardware
Qualcomm Snapdragon 888 5G SM8350 (Lahaina)8 GB RAM
Storage
256 GBSM-G991U GALAXY S21 5G UW DUAL SIM TD-LTE US 128GB - SM-G991T
Hardware
Qualcomm Snapdragon 888 5G SM8350 (Lahaina)8 GB RAM
