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Samsung Galaxy S21 Ultra vs Samsung Galaxy S20 Specs Comparison

Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.

Comparison mode:
Specs Size
Differences only
9.1
Samsung Galaxy S21 Ultra
9.1
Samsung Galaxy S20
Samsung Galaxy S21 Ultra Samsung Galaxy S20
Released · Jan 29, 2021
Released · Mar 06, 2020
6.8-inch
6.2-inch
Quad camera
Triple camera
12GB · 128GB
12GB · 128GB
5000 mAh
4000 mAh
Check prices Check prices

Design

Dimensions
6.50 x 2.98 x 0.35 inches (~0.37 inches with camera bump)
165.1 x 75.6 x 8.9 mm (~9.4 mm with camera bump) 		5.97 x 2.72 x 0.31 inches
151.7 x 69.1 x 7.9 mm
Weight
8.04 oz (229.0 g) 5.78 oz (163.0 g)
Materials
Back: Glass (Corning Gorilla Glass Victus)
Frame: Aluminum 		Back: Glass (Corning Gorilla Glass 6)
Frame: Aluminum
Resistance
Water, Dust; IP68 Water, Dust; IP68
Biometrics
2D Face unlock, Ultrasonic in-screen fingerprint 2D Face unlock, Ultrasonic in-screen fingerprint
Keys
Right: Volume control, Lock/Unlock key Right: Volume control, Lock/Unlock key
Colors
Phantom black, Silver Cloud blue, Cosmic grey, Cloud pink, Cosmic white

Display

Size
6.8-inch 6.2-inch
Resolution
3200x1440px, 20:9 ratio, 516 PPI 3200x1440px, 20:9 ratio, 566 PPI
Technology
Dynamic AMOLED Dynamic AMOLED
Refresh rate
120Hz (adaptable) 120Hz (@1080p)
Screen-to-body
89.33 % 88.59 %
Peak brightness
1500 cd/m2 (nit)
Features
HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus), Ambient light sensor, Proximity sensor HDR support, Scratch-resistant glass (Corning Gorilla Glass 6), Ambient light sensor, Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 888 SM8350 (5 nm) Qualcomm Snapdragon 865 SM8250 (7 nm)
Processor
Octa-core
1x 2.84GHz Kryo 680 + 3x 2.42GHz Kryo 680 + 4x 1.80GHz Kryo 680 		Octa-core
1x 2.84GHz Kryo 585 + 3x 2.42GHz Kryo 585 + 4x 1.80GHz Kryo 585
GPU
Adreno 660 Adreno 650
RAM
12GB (LPDDR5) 12GB (LPDDR5)
Internal storage
128GB (UFS 3.1) 128GB (UFS 3.0)
Storage expansion
not expandable microSDXC up to 1000 GB
OS
Android (14, 13, 12, 11), One UI Android (13, 12, 11, 10), Samsung One UI

Battery

Capacity
5000 mAh 4000 mAh
Type
Li - Polymer Li - Polymer
Charging
Qualcomm Quick Charge 2.0, USB Power Delivery, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging, Reverse wireless charging Qualcomm Quick Charge 2.0, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging, Reverse wireless charging
Charge speed
Wired: 25.0W
Wireless: 15.0W 		Wired: 25.0W
Wireless: 15.0W
PhoneArena Battery Tests
Battery Life Estimate
6h 15min
Browsing
14h 43min
Video
8h 52min
Gaming
8h 40min
Battery Life Estimate
5h 20min
Browsing
7h 45min
Video
10h 20min
Gaming
7h 43min
Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Quad camera Triple camera
Main camera
108 MP (OIS, Laser and PDAF)
Aperture size: F1.8
Focal length: 24 mm
Sensor size: 1/1.33"
Pixel size: 0.8 μm 		12 MP (OIS, PDAF)
Aperture size: F1.8
Focal length: 26 mm
Sensor size: 1/1.7"
Pixel size: 1.8 μm
Second camera
12 MP (Ultra-wide, PDAF)
Aperture size: F2.2
Focal Length: 13 mm
Sensor size: 1/2.55"
Pixel size: 1.4 μm 		12 MP (Ultra-wide, Autofocus)
Aperture size: F2.2
Focal Length: 13 mm
Pixel size: 1.4 μm
Third camera
10 MP (Telephoto, OIS, PDAF)
Optical zoom: 3.0x
Aperture size: F2.4
Focal Length: 70 mm
Sensor size: 1/3.2"
Pixel size: 1.22 μm 		64 MP (Telephoto, OIS, PDAF)
Aperture size: F2.0
Sensor size: 1/1.7"
Pixel size: 0.8 μm
Fourth camera
10 MP (Telephoto, Periscope, OIS, PDAF)
Optical zoom: 3.0x
Aperture size: F2.4
Focal Length: 70 mm
Sensor size: 1/3.2"
Pixel size: 1.22 μm
Flash
LED LED
Video recording
7680x4320 (8K UHD) (24 fps), 3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)
OIS, HDR, Hyperlapse, Video light, EIS 		7680x4320 (8K UHD) (24 fps), 3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)
OIS, HDR, EIS
Front
40 MP (PDAF, HDR), Video capture: 3840x2160 (4K UHD) (60 fps) 10 MP (PDAF, HDR), Video capture: 3840x2160 (4K UHD) (60 fps)

Connectivity & Features

Bluetooth
5.1 5.0
WLAN
802.11 a,b,g,n,ac,ax(Wi-Fi 6),dual-band
MIMO, Wi-Fi Direct, Hotspot 		802.11 a,b,g,n,ac,ax(Wi-Fi 6),dual-band
MIMO, Wi-Fi Direct, Hotspot
USB
Type-C, USB 3.2 Type-C, USB 3.1
Hearing aid compatible
M3/T3 M3/T3
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning GPS, A-GPS, Glonass, Galileo, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer
Other
NFC, ANT+ NFC, ANT+

Multimedia

Headphones
No 3.5mm jack No 3.5mm jack
Speakers
Earpiece, Multiple speakers Earpiece, Multiple speakers
Features
32-Bit DAC, Dolby Atmos, aptX, Dolby Digital, Dolby Digital Plus 32-Bit DAC, Dolby Atmos, aptX, Dolby Digital, Dolby Digital Plus
Screen mirroring
Wireless screen share Wireless screen share
Radio
FM, Stereo, RDS FM
Additional microphone(s)
Noise cancellation, Video recording Noise cancellation

Cellular

5G
Bands n2, n5, n12, n25, n41, n66, n71, n77, n260, n261, SA, NSA, Sub-6, mmWave Bands n1, n3, n5, n7, n8, n28, n40, n77, n78, SA, NSA, Sub-6
4G (FDD)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 14(700 PS), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 30(2300 WCS), 66(AWS-3), 71(600) Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 17(700 b), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 32(1500 L-band), 66(AWS-3)
4G (TDD)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46, 48(3600) Bands 38(2600), 39(1900+), 40(2300), 41(2600+)
3G
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900) Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Data Speed
LTE-A Pro Cat 20 (2000/150 Mbit/s) LTE-A Pro Cat 20 (2000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
SIM type
Nano SIM Nano SIM

Regulatory Approval

FCC approval
Date approved: Dec 22, 2020
FCC ID value: A3LSMG998U 		Date approved: Jan 24, 2020
FCC ID value: A3LSMG981U
Measured SAR
Head: 0.77 W/kg
Body: 1.02 W/kg
Simultaneous Transmission: 1.59 W/kg
Wireless Router: 1.16 W/kg
Phablet: 3.15 W/kg 		Head: 1.07 W/kg
Body: 1.03 W/kg
Simultaneous Transmission: 1.59 W/kg
Wireless Router: 1.25 W/kg
Phablet: 3.99 W/kg

Buyers information

MSRP
$ 1200 / € 1399 $ 1000
In The Box
C to C Data Cable, Ejection Pin

Availability

Officially announced
Jan 14, 2021 Feb 11, 2020

Alternative variants

with 256GB storage
Internal storage 256GB
Colors Phantom black
MSRP $ 1250
Global variant
System chip Samsung Exynos 990 (7 nm)
Processor Octa-core
2700 MHz
2x 2.73GHz Exynos M5 + 2x 2.5GHz Cortex-A75 + 4x 2.0GHz Cortex-A55
GPU Mali G77 MP11
with 512GB storage
RAM 16GB
Internal storage 512GB
Colors Phantom black
MSRP $ 1380
non 5G variant
RAM 8GB
FCC approval Date approved: Jan 28, 2020
FCC ID value: A3LSMG980F
Measured SAR Head: 0.37 W/kg
Body: 1.01 W/kg
Simultaneous Transmission: 1.59 W/kg
Wireless Router: 1.34 W/kg
Phablet: 2.67 W/kg
for Europe
System chip Samsung Exynos 2100 (5 nm)
Processor Octa-core
1x 2.91GHz Cortex-X1 + 3x 2.81GHz Cortex-A78 + 4x 2.2GHz Cortex-A55
GPU Mali G78 MP14
Weight 8.01 oz (227.0 g)
5G Bands SA, NSA, Sub-6
FCC approval Date approved: Dec 22, 2020
FCC ID value: A3LSMG998B
Measured SAR Head: 0.16 W/kg
Body: 0.72 W/kg
Simultaneous Transmission: 1.59 W/kg
Wireless Router: 1.34 W/kg
Phablet: 3.86 W/kg
for Verizon
Storage expansion not expandable
5G Bands n260, n261, mmWave
4G (FDD) Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 13(700 c), 18(800 Lower), 19(800 Upper), 20(800 DD), 26(850+), 28(700 APT), 66(AWS-3)
4G (TDD) Bands 34(2000), 39(1900+), 46, 48(3600)
Hearing aid compatible M4/T3
FCC OKs Cingular\'s purchase of AT&T Wireless