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Samsung Galaxy A21 vs Samsung Galaxy Note 20 Ultra vs Samsung Galaxy A12

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

Comparison mode:

Display

Size:

6.5 inches
6.9 inches
6.5 inches

Resolution:

1600 x 720 pixels, 20:9 ratio, 270 PPI
3088 x 1440 pixels, 19.3:9 ratio, 496 PPI
1600 x 720 pixels, 20:9 ratio, 270 PPI

Technology:

IPS LCD
Dynamic AMOLED
LCD

Refresh rate:

60Hz
120Hz

Screen-to-body:

79.20 %
91.63 %
85.80 %

Features:

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

Hardware

System chip:

Mediatek Helio P35
Qualcomm Snapdragon 865+ SM8250-AB
Mediatek Helio P35 MT6765

Processor:

Octa-core, 2300 MHz, Arm Cortex-A53, 64-bit, 12 nm
Octa-core, 3000 MHz, Kryo 585, 64-bit, 7 nm
Octa-core, 2350 MHz, Cortex-A53, 64-bit, 12 nm

GPU:

PowerVR GE8320
Adreno 650
PowerVR GE8320

RAM:

3GB LPDDR4
12GB LPDDR5
4GB LPDDR4

Internal storage:

32GB (eMMC 5.1), available to use: 19.8 GB
128GB, available to use: 107 GB
64GB (eMMC 5.1), available to use: 48.2 GB

Storage expansion:

microSDXC up to 512 GB
microSDXC up to 1000 GB
microSDXC up to 1024 GB

Device type:

Smartphone
Smartphone
Smartphone

OS:

Android (10), Samsung One UI
Android (11, 10), Samsung One UI
Android (10), Samsung One UI UI

Battery

Capacity:

4000 mAh
4500 mAh
5000 mAh

Type:

Li - Polymer, Not user replaceable
Li - Polymer, Not user replaceable
Li - Polymer, Not user replaceable

Battery life test results:

Charging:

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

Max charge speed:

Wired: 15.0W
Wired: 15.0W

Camera

Rear:

Quad camera
Triple camera
Quad camera

Main camera:

16 MP (PDAF)
108 MP (OIS, Laser and PDAF)
48 MP (Autofocus)

Specifications:

Aperture size: F1.8; Sensor size: 1/3.06"; Pixel size: 1 μm
Aperture size: F1.8; Focal length: 26 mm; Sensor size: 1/1.33"; Pixel size: 0.8 μm
Aperture size: F2.0; Focal length: 26 mm

Second camera:

8 MP (Ultra-wide)
12 MP (Telephoto, OIS, PDAF)
5 MP (Ultra-wide)

Specifications:

Aperture size: F2.2; Sensor size: 1/4"; Pixel size: 1.12 μm
Optical zoom: 5.0x; Aperture size: F3.0; Focal Length: 120 mm; Pixel size: 1 μm
Aperture size: F2.2

Third camera:

2 MP (Macro)
12 MP (Ultra-wide, Autofocus)
2 MP (Macro)

Specifications:

Aperture size: F2.4
Aperture size: F2.2; Focal Length: 13 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm
Aperture size: F2.4

Fourth camera:

2 MP (Depth information)
2 MP (Depth information)

Specifications:

Aperture size: F2.4
Aperture size: F2.4

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)
1920x1080 (Full HD) (30 fps)

Features:

OIS, HDR, Time-lapse video, Hyperlapse, Object tracking, EIS

Front:

13 MP
10 MP (PDAF, HDR)
8 MP

Video capture:

1920x1080 (Full HD)
3840x2160 (4K UHD)

Design

Dimensions:

6.61 x 3.02 x 0.32 inches (167.8 x 76.7 x 8.1 mm)
6.49 x 3.04 x 0.32 inches (164.8 x 77.2 x 8.1 mm)
6.46 x 2.98 x 0.35 inches (164 x 75.8 x 8.9 mm)

Weight:

6.81 oz (193.0 g)
7.34 oz (208.0 g)
7.23 oz (205.0 g)

Materials:

Back: Plastic; Frame: Plastic
Back: Glass (Corning Gorilla Glass Victus); Frame: Stainless steel
Back: Plastic; Frame: Plastic

Resistance:

Water, Dust; IP68

Biometrics:

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

Features:

Stylus

Keys:

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

Colors:

Black
Mystic black, Mystic bronze, Mystic white
Black, White, Blue, Red

Cellular

5G:

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

LTE (FDD):

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), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 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), 14(700 PS), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 66(AWS-3), 71(600)
Bands 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)

LTE (TDD):

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

UMTS:

Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Bands 1(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 Pro Cat 20 (2000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

Dual SIM:

Yes

SIM type:

Nano SIM
Nano SIM
Nano SIM

HD Voice:

Yes
Yes

Multimedia

Headphones:

3.5mm jack
No 3.5mm jack
3.5mm jack

Speakers:

Earpiece, Loudspeaker
Earpiece, Multiple speakers
Earpiece, Loudspeaker

Features:

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

Screen mirroring:

Wireless screen share
Wireless screen share
Wireless screen share, MirrorLink

Radio:

FM
FM

Additional microphone(s):

for Noise cancellation

Connectivity & Features

Bluetooth:

5.0
5.0
5.0

Wi-Fi:

802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, ax (Wi-Fi 6), dual-band; MIMO, Wi-Fi Direct, Hotspot
802.11 b, g, n; Wi-Fi Direct, Hotspot

USB:

Type-C (reversible), USB 2.0
Type-C (reversible), USB 3.2
Type-C (reversible), USB 2.0

Features:

Charging
Charging, Headphones port, OTG, Video out
Charging, Mass storage device

Location:

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

Sensors:

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

Other:

NFC
NFC, ANT+
NFC

Hearing aid compatible:

M4, T3
M3, T3

Regulatory Approval

FCC approval:

Date approved:

Apr 17, 2020
Jul 06, 2020
Mar 11, 2021

FCC ID value:

ZCASMA215U
A3LSMN986U
A3LSMA125U

Measured SAR:

Head:

0.42 W/kg
0.78 W/kg
1.14 W/kg

Body:

1.27 W/kg
1.04 W/kg
1.20 W/kg

Simultaneous Transmission:

1.27 W/kg
1.59 W/kg
1.59 W/kg

Wireless Router:

1.27 W/kg
1.18 W/kg
1.34 W/kg

Phablet:

3.92 W/kg

Buyers information

Price:

$ 250
$ 1300
€ 179

User Manual:

This is the official Samsu​ng Galaxy Note 20 Ultra User Guide in English provided from the manufacturer.
This is the official Samsu​ng Galaxy A12 User Guide in English provided from the manufacturer.

In The Box:

This is the official Samsu​ng Galaxy A21 User Guide in English provided from the manufacturer.
Data Cable, Travel Adapter, Ejection Pin, Quick Start Guide
Power brick, USB cable, Headphones, Sim card extraction tool

Availability

Officially announced:

Apr 08, 2020
Aug 05, 2020
Nov 24, 2020
FCC OKs Cingular\'s purchase of AT&T Wireless