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Samsung Galaxy A21 vs Samsung Galaxy Note 20 Ultra vs Samsung Galaxy Z Fold 3

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

Comparison mode:

Display

Size:

6.5 inches
6.9 inches
7.6 inches

Resolution:

1600 x 720 pixels, 20:9 ratio, 270 PPI
3088 x 1440 pixels, 19.3:9 ratio, 496 PPI
2208 x 1768 pixels, 22.5:18 ratio, 372 PPI

Technology:

IPS LCD
Dynamic AMOLED
Super AMOLED

Refresh rate:

60Hz
120Hz
120Hz

Screen-to-body:

79.20 %
91.63 %
88.57 %

Features:

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

Front cover display:

6.2 inches, 2268 x 832 pixels, Super AMOLED, 120Hz refresh rate, Scratch-resistant glass (Corning Gorilla Glass Victus)

Hardware

System chip:

Mediatek Helio P35
Qualcomm Snapdragon 865+ SM8250-AB
Qualcomm Snapdragon 888 SM8350

Processor:

Octa-core, 2300 MHz, Arm Cortex-A53, 64-bit, 12 nm
Octa-core, 3000 MHz, Kryo 585, 64-bit, 7 nm
Octa-core, 2840 MHz, Kryo 680 Prime, 64-bit, 5 nm

GPU:

PowerVR GE8320
Adreno 650
Adreno 660

RAM:

3GB LPDDR4
12GB LPDDR5
12GB

Internal storage:

32GB (eMMC 5.1), available to use: 19.8 GB
128GB, available to use: 107 GB
256GB, not expandable

Storage expansion:

microSDXC up to 512 GB
microSDXC up to 1000 GB

Device type:

Smartphone
Smartphone
Smartphone

OS:

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

Battery

Capacity:

4000 mAh
4500 mAh
4400 mAh

Type:

Li - Polymer, Not user replaceable
Li - Polymer, Not user replaceable
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
Fast charging, Qi wireless charging, Reverse wireless charging

Max charge speed:

Wired: 15.0W
Wired: 25.0W; Wireless: 11.0W

Camera

Rear:

Quad camera
Triple camera
Triple camera

Main camera:

16 MP (PDAF)
108 MP (OIS, Laser and PDAF)
12 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: F2.2; Pixel size: 1.12 μm

Second camera:

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

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
Optical zoom: 2.0x; Aperture size: F2.4; Pixel size: 1.0 μm

Third camera:

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

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: F1.8; Pixel size: 1.8 μm

Fourth camera:

2 MP (Depth information)

Specifications:

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)
Yes

Features:

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

Front:

13 MP
10 MP (PDAF, HDR)
4 MP (Under-screen)

Folded:

10 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)
6.23 x 5.04 x 0.25 inches (158.2 x 128.1 x 6.4 mm)

Folded:

(158.2 x 67.1 x 14.4 mm)

Weight:

6.81 oz (193.0 g)
7.34 oz (208.0 g)
9.56 oz (271.0 g)

Materials:

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

Resistance:

Water, Dust; IP68
Yes; IPX8

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
Phantom Black, Phantom Green, Phantom Silver

Cellular

5G:

n2, n5, n41, n66, n71, n260, n261, SA, NSA, Sub-6, mmWave
n2, n5, n25, n41, n66, n71, n260, 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), 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+)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46, 48(3600)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46, 48(3600)

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), 2(1900), 5(850), 8(900), 9(1700)

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-A Pro Cat 20 (2000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s

SIM type:

Nano SIM
Nano SIM
Nano SIM

HD Voice:

Yes
Yes

Multimedia

Headphones:

3.5mm jack
No 3.5mm jack
No 3.5mm jack

Speakers:

Earpiece, Loudspeaker
Earpiece, Multiple speakers
Earpiece, Multiple speakers

Features:

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

Screen mirroring:

Wireless screen share
Wireless screen share
Wireless screen share

Radio:

FM
FM

Additional microphone(s):

for Noise cancellation
for Noise cancellation

Connectivity & Features

Bluetooth:

5.0
5.0
5.2

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

USB:

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

Features:

Charging
Charging, Headphones port, OTG, Video out
Charging, OTG

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, Gyroscope, Compass, Barometer

Other:

NFC
NFC, ANT+
NFC

Hearing aid compatible:

M4, T3
M3, T3

Regulatory Approval

FCC approval:

Date approved:

Apr 17, 2020
Jul 06, 2020
Jun 23, 2021

FCC ID value:

ZCASMA215U
A3LSMN986U
A3LSMF926U

Measured SAR:

Head:

0.42 W/kg
0.78 W/kg
0.73 W/kg

Body:

1.27 W/kg
1.04 W/kg
0.86 W/kg

Simultaneous Transmission:

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

Wireless Router:

1.27 W/kg
1.18 W/kg
0.79 W/kg

Phablet:

3.92 W/kg

Buyers information

Price:

$ 250
$ 1300

User Manual:

This is the official Samsu​ng Galaxy Note 20 Ultra 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

Availability

Officially announced:

Apr 08, 2020
Aug 05, 2020
Aug 11, 2021
FCC OKs Cingular\'s purchase of AT&T Wireless