Notification Center

This is our new notification center. Inside, you will find updates on the most important things happening right now.

Notifications

Hmm, push notifications seem to be disabled in your browser. You can enable them from the 'Settings' icon in the URL bar of your browser.

www.phonearena.com

Samsung Galaxy A30 vs Samsung Galaxy A21 vs Samsung Galaxy A02s

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

Comparison mode:

Display

Size:

6.4 inches
6.5 inches
6.5 inches

Resolution:

2340 x 1080 pixels, 19.5:9 ratio, 403 PPI
1600 x 720 pixels, 20:9 ratio, 270 PPI
1600 x 720 pixels, 20:9 ratio, 270 PPI

Technology:

Super AMOLED
IPS LCD
IPS LCD

Refresh rate:

60Hz

Screen-to-body:

85.24 %
79.20 %
81.80 %

Features:

Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor
Ambient light sensor, Proximity sensor
Ambient light sensor, Proximity sensor

Hardware

System chip:

Samsung Exynos 7 Octa 7904
Mediatek Helio P35
Qualcomm Snapdragon 450 SDM450

Processor:

Octa-core, 1800 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm
Octa-core, 2300 MHz, Arm Cortex-A53, 64-bit, 12 nm
Octa-core, 1800 MHz, Cortex-A53, 64-bit, 14 nm

GPU:

Mali-G71 MP2
PowerVR GE8320
Adreno 506

RAM:

4GB LPDDR4
3GB LPDDR4
3GB

Internal storage:

64GB, available to use: 49.6 GB
32GB (eMMC 5.1), available to use: 19.8 GB
32GB (eMMC 5.1), available to use: 20.5 GB

Storage expansion:

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

Device type:

Smartphone
Smartphone
Smartphone

OS:

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

Battery

Capacity:

4000 mAh
4000 mAh
5000 mAh

Type:

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

Charging:

Samsung Adaptive Fast Charging
Fast charging
Samsung Adaptive Fast Charging

Max charge speed:

Wired: 15.0W
Wired: 15.0W

Camera

Rear:

Dual camera
Quad camera
Triple camera

Main camera:

16 MP (PDAF)
16 MP (PDAF)
13 MP (Autofocus)

Specifications:

Aperture size: F1.7; Focal length: 27 mm; Sensor size: 1/2.8"; Pixel size: 1.12 μm
Aperture size: F1.8; Sensor size: 1/3.06"; Pixel size: 1 μm
Aperture size: F2.2

Second camera:

5 MP (Ultra-wide)
8 MP (Ultra-wide)
2 MP (Macro)

Specifications:

Aperture size: F2.2; Focal Length: 13 mm; Sensor size: 1/5"; Pixel size: 1.12 μm
Aperture size: F2.2; Sensor size: 1/4"; Pixel size: 1.12 μm
Aperture size: F2.4

Third camera:

2 MP (Macro)
2 MP (Depth information)

Specifications:

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

Fourth camera:

2 MP (Depth information)

Specifications:

Aperture size: F2.4

Video recording:

1920x1080 (Full HD) (30 fps)
1920x1080 (Full HD) (30 fps)
1920x1080 (Full HD) (30 fps)

Features:

Video calling, Video sharing

Front:

16 MP
13 MP
5 MP

Video capture:

1920x1080 (Full HD)
1920x1080 (Full HD)

Design

Dimensions:

6.24 x 2.94 x 0.30 inches (158.5 x 74.7 x 7.7 mm)
6.61 x 3.02 x 0.32 inches (167.8 x 76.7 x 8.1 mm)
6.46 x 2.99 x 0.36 inches (164.2 x 75.9 x 9.1 mm)

Weight:

5.82 oz (165.0 g)
6.81 oz (193.0 g)
6.91 oz (196.0 g)

Materials:

Back: Plastic
Back: Plastic; Frame: Plastic
Back: Plastic; Frame: Plastic

Biometrics:

2D Face unlock, Fingerprint (touch)
Fingerprint (touch)

Keys:

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

Colors:

Black, Blue, White
Black
Black, White, Blue

Cellular

LTE (FDD):

Bands 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD)
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), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)

LTE (TDD):

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

UMTS:

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

Data Speed:

LTE-A Cat 12/13 (600/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE-A Cat 6 (300/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE Cat 4 (150/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

Dual SIM:

Yes
Yes

SIM type:

Nano SIM
Nano SIM
Nano SIM

HD Voice:

Yes

VoLTE:

Yes

Multimedia

Headphones:

3.5mm jack
3.5mm jack
3.5mm jack

Speakers:

Earpiece, Loudspeaker
Earpiece, Loudspeaker
Earpiece, Loudspeaker

Features:

Dolby Atmos, Album art cover, Background playback

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
4.2

Wi-Fi:

802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot
802.11 b, g, n, 802.1x; Wi-Fi Direct, Hotspot

USB:

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

Features:

Charging, Mass storage device
Charging
Charging, Mass storage device

Location:

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

Sensors:

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

Other:

VoIP, Tethering, Computer sync, OTA sync
NFC

Hearing aid compatible:

M4, T3

Regulatory Approval

FCC approval:

Date approved:

Feb 14, 2019
Apr 17, 2020
Feb 07, 2021

FCC ID value:

A3LSMA305F
ZCASMA215U
ZCASMA025U

Measured SAR:

Head:

0.32 W/kg
0.42 W/kg
1.00 W/kg

Body:

0.52 W/kg
1.27 W/kg
0.85 W/kg

Simultaneous Transmission:

1.43 W/kg
1.27 W/kg
1.40 W/kg

Wireless Router:

1.15 W/kg
1.27 W/kg
0.85 W/kg

Buyers information

Price:

$ 250

In The Box:

This is the official Samsu​ng Galaxy A21 User Guide in English provided from the manufacturer.
Power brick, USB Cable, Headphones, Sim Card extractor tool

Availability

Officially announced:

Feb 25, 2019
Apr 08, 2020
FCC OKs Cingular\'s purchase of AT&T Wireless