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Samsung Galaxy A20 vs Samsung Galaxy S21 Ultra

Compare phone and tablet specifications of up to three devices at once.

Display

Size:

6.4 inches
6.8 inches

Resolution:

1560 x 720 pixels, 19.5:9 ratio, 268 PPI
3200 x 1440 pixels, 20:9 ratio, 516 PPI

Technology:

Super AMOLED
Dynamic AMOLED

Refresh rate:

60Hz
120Hz (adaptable)

Screen-to-body:

84.95 %
89.33 %

Peak brightness:

1500 cd/m2 (nit)

Features:

Ambient light sensor, Proximity sensor
HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus), Ambient light sensor, Proximity sensor

Hardware

System chip:

Samsung Exynos 7884 (14 nm)
Qualcomm Snapdragon 888 SM8350 (5 nm)

Processor:

Octa-core, 1800 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit
Octa-core, 1x 2.84GHz Kryo 680 + 3x 2.42GHz Kryo 680 + 4x 1.80GHz Kryo 680, 64-bit

GPU:

Mali-G71 MP2
Adreno 660

RAM:

3GB LPDDR4
12GB LPDDR5

Internal storage:

32GB, available to use: 20.3 GB
128GB (UFS 3.1), not expandable

Storage expansion:

microSDXC up to 512 GB

Device type:

Smartphone
Smartphone

OS:

Android (11, 10, 9.0 Pie), Samsung One UI
Android (12, 11), Samsung One UI

Battery

Capacity:

4000 mAh
5000 mAh

Type:

Not user replaceable
Li - Polymer, Not user replaceable

Charging:

Samsung Adaptive Fast Charging
Qualcomm Quick Charge 2.0, USB Power Delivery, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging, Reverse wireless charging

Max charge speed:

Wired: 25.0W; Wireless: 15.0W

Camera

Rear:

Dual camera
Quad camera

Main camera:

13 MP (Autofocus)
108 MP (OIS, Laser and PDAF)

Specifications:

Aperture size: F1.9; Focal length: 27 mm; Sensor size: 1/3.1"; Pixel size: 1.12 μm
Aperture size: F1.8; Focal length: 24 mm; Sensor size: 1/1.33"; Pixel size: 0.8 μm

Second camera:

5 MP (Ultra-wide)
10 MP (Telephoto, OIS, PDAF)

Specifications:

Aperture size: F2.2; Focal Length: 13 mm; Sensor size: 1/5"; Pixel size: 1.12 μm
Optical zoom: 3.0x; Aperture size: F2.4; Focal Length: 70 mm; Sensor size: 1/3.2"; Pixel size: 1.22 μm

Third camera:

12 MP (Ultra-wide, PDAF)

Specifications:

Aperture size: F2.2; Focal Length: 13 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm

Fourth camera:

10 MP (Periscope, OIS, PDAF)

Specifications:

Optical zoom: 10.0x; Aperture size: F4.9; Focal Length: 240 mm; Sensor size: 1/3.2"; Pixel size: 1.22 μm

Video recording:

1920x1080 (Full HD) (30 fps)
7680x4320 (8K UHD) (24 fps), 3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)

Features:

OIS, HDR, Hyperlapse, Video light, EIS

Front:

8 MP
40 MP (PDAF, HDR)

Video capture:

3840x2160 (4K UHD) (60 fps)

Design

Dimensions:

6.24 x 2.94 x 0.31 inches (158.4 x 74.7 x 7.8 mm)
6.50 x 2.98 x 0.35 inches (165.1 x 75.6 x 8.9 mm)

Weight:

5.96 oz (169.0 g)
8.04 oz (229.0 g)

Materials:

Back: Plastic
Back: Glass (Corning Gorilla Glass Victus); Frame: Aluminum

Resistance:

Water, Dust; IP68

Biometrics:

2D Face unlock, Fingerprint (touch)
2D Face unlock, Ultrasonic in-screen fingerprint

Keys:

Right: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key

Colors:

Black,Deep blue, Red
Phantom black, Silver

Cellular

5G:

n2, n5, n12, n25, n41, n66, n71, n77, n260, n261, SA, NSA, Sub-6, mmWave

LTE (FDD):

Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 13(700 c), 20(800 DD), 28(700 APT), 66(AWS-3)
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)

LTE (TDD):

Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46, 48(3600)

UMTS:

Bands 1(2100), 2(1900), 5(850), 8(900)
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)

Data Speed:

LTE-A Cat 6 (300/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS

SIM type:

Nano SIM
Nano SIM

Multimedia

Headphones:

3.5mm jack
No 3.5mm jack

Speakers:

Earpiece, Loudspeaker
Earpiece, Multiple speakers

Features:

Dolby Atmos
32-Bit DAC, Dolby Atmos, aptX, Dolby Digital, Dolby Digital Plus

Screen mirroring:

Wireless screen share
Wireless screen share

Radio:

FM, Stereo, RDS

Additional microphone(s):

for Noise cancellation
for Noise cancellation, Video recording

Connectivity & Features

Bluetooth:

5.0
5.1

Wi-Fi:

802.11 a, b, g, n, ac; 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 (reversible), USB 2.0
Type-C (reversible), USB 3.2

Features:

Charging
Charging, Headphones port, OTG, Video out

Location:

GPS, A-GPS, Glonass, Galileo, Cell ID, Wi-Fi positioning
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning

Sensors:

Accelerometer, Gyroscope, Compass, Hall (for flip covers)
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer

Other:

NFC, ANT+

Hearing aid compatible:

M3, T3

Regulatory Approval

FCC approval:

Date approved:

Jun 19, 2019
Dec 22, 2020

FCC ID value:

A3LSMA205U
A3LSMG998U

Measured SAR:

Head:

1.09 W/kg
0.77 W/kg

Body:

0.60 W/kg
1.02 W/kg

Simultaneous Transmission:

1.37 W/kg
1.59 W/kg

Wireless Router:

1.00 W/kg
1.16 W/kg

Phablet:

3.94 W/kg
3.15 W/kg

Buyers information

Price:

$ 250
$ 1200

In The Box:

C to C Data Cable, Ejection Pin

Availability

Officially announced:

Jan 14, 2021
FCC OKs Cingular\'s purchase of AT&T Wireless