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General Information
Model Name
Galaxy S21
Galaxy S21 Ultra
Model type
Bar
Bar
Colors
Violet (Phantom Violet)Pink (Phantom Pink)Gray (Phantom Gray)White (Phantom White)
Black (Phantom Black)Silver (Phantom Silver)Brown (Phantom Brown)Navy (Phantom Navy)Titanium (Phantom Titanium)
Announced
2021, January
2021, January
Released
2021, January
2021, January
Physical specifications
Dimensions
Bar: 151.7 x 71.2 x 7.9 mm
Bar: 165.1 x 75.6 x 8.9 mm
Weights
171g
229g
IP rating
IP68
IP68
Operating system
Operating system
Android 11
Android 11
One UI version
3.1
3.1
Networks
SIM
Dual SIM model
Dual SIM model
SIM card sizes
Nano-SIM (4FF)
Nano-SIM (4FF)
Networks
2G3G4G5G
2G3G4G5G
eSIM support
Yes
Yes
Display
Kind
Main Display
Name
Infinity-O Display
Infinity-O Display
Technology
Dynamic AMOLED 2X
Dynamic AMOLED 2X
Size
6.2 inch / 157.48 mm
6.8 inch / 172.72 mm
Resolution
FHD+ / 2400x1080 pixels
WQHD+ / 3200x1440 pixels
Pixel density
421 PPI
515 PPI
Screen to body ratio
~87.2%
~89.9%
Refresh rate
120Hz
120Hz
Processors
Memory
RAM/ROM sizes
8 GB RAM with 128 GB ROM8 GB RAM with 256 GB ROM
12 GB RAM with 128 GB ROM12 GB RAM with 256 GB ROM16 GB RAM with 512 GB ROM
External memory support
No
No
Sensors
Accelerometer
Yes
Yes
Ambient Light
Yes
Yes
Barometer
Yes
Yes
Gyro sensor
Yes
Yes
Hall sensor
Yes
Yes
Proximity sensor
Yes
Yes
Ultrasonic Fingerprint sensor
Yes
Yes
Video
Max. Video Recording Resolution
8K video recording at 30 fps (7680x4320)
8K video recording at 30 fps (7680x4320)
External memory support
No
No
Front Camera
Kind
Selfie Camera
Megapixels
10MP
40MP
Aperture
F2.2
F2.2
Pixel size
1.22μm
0.7µm
Field of view
80˚
80˚
Extras
Dual Pixel AF
PDAF
Rear Camera
Flash
Yes
Yes
Digital Zoom
Yes
Yes
Optical Zoom
Yes
Yes
Kind
Ultra Wide Camera
Megapixels
12MP
12MP
Aperture
F2.2
F2.2
Pixel size
1.4μm
1.4μm
Field of view
120°
120°
Extras
FF
Dual Pixel AF
Kind
Wide-angle Camera
Megapixels
12MP
108MP
Aperture
F1.8
F1.8
Pixel size
1.8μm
0.8µm
Field of view
79°
79°
Extras
Dual Pixel AF, OIS
PDAF, OIS
Kind
Telephoto Camera
Megapixels
64MP
10MP
Aperture
F2.0
F4.9
Pixel size
0.8µm
1.22μm
Field of view
76°
10°
Extras
PDAF, OIS
Dual Pixel AF, OIS
Connectivity
ANT+
Yes
Yes
USB version
Type C
Type C
3.5mm Headphonejack
No
No
Location technology
GPSBeiDouGalileoGlonass
GPSGalileoGlonassBeiDou
Wi-Fi
Yes
Yes
Wi-Fi Direct
Yes
NFC
Yes
Yes
Bluetooth Version
5.2
5.2
S Pen
Availability
Yes
Pressure sensitivity levels
4096
Tip size
0.7mm
Battery
Standard battery capacity
4000mAh
5000mAh
Removable battery
No
No
Wired fast charging
Yes
Yes
Wired fast charging watt
25
25
Wireless fast charging
Yes
Yes
Wireless fast charging Watt
15
15
Wireless power share
Yes
Yes
Wireless power share Watt
0.7
4.5