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LG Q7+ vs Samsung Galaxy A21s vs Samsung Galaxy A02s

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

Comparison mode:

Display

Size:

5.5 inches
6.5 inches
6.5 inches

Resolution:

2160 x 1080 pixels, 18:9 ratio, 439 PPI
1600 x 720 pixels, 20:9 ratio, 270 PPI
1600 x 720 pixels, 20:9 ratio, 270 PPI

Technology:

IPS LCD
TFT
IPS LCD

Screen-to-body:

78.31 %
82.94 %
81.80 %

Features:

Scratch-resistant glass, Ambient light sensor, Proximity sensor
Proximity sensor
Ambient light sensor, Proximity sensor

Hardware

System chip:

Qualcomm Snapdragon 450 SDM450
Samsung Exynos 850
Qualcomm Snapdragon 450 SDM450

Processor:

Octa-core, 1800 MHz, ARM Cortex-A53, 64-bit, 14 nm
Octa-core, 2000 MHz, Arm Cortex-A55, 64-bit
Octa-core, 1800 MHz, Cortex-A53, 64-bit, 14 nm

GPU:

Adreno 506
Mali-G76
Adreno 506

RAM:

4GB LPDDR3
3GB LPDDR4
3GB

Internal storage:

64GB, available to use: 49 GB
32GB (eMMC 5.1), available to use: 19.5 GB
32GB (eMMC 5.1), available to use: 20.5 GB

Storage expansion:

microSDXC up to 2000 GB
microSDXC up to 512 GB
microSDXC up to 1024 GB

Device type:

Smartphone
Smartphone
Smartphone

OS:

Android (9.0 Pie, 8.1 Oreo)
Android (10), Samsung One UI
Android (11, 10)

Battery

Capacity:

3000 mAh
5000 mAh
5000 mAh

Type:

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

Battery life test results:

Charging:

MediaTek Pump Express
Fast charging
Samsung Adaptive Fast Charging

Max charge speed:

Wired: 15.0W

Camera

Rear:

Single camera
Quad camera
Triple camera

Main camera:

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

Specifications:

Aperture size: F2.2; Sensor size: 1/3"; Pixel size: 1.12 μm
Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm
Aperture size: F2.2

Second camera:

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

Specifications:

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:

Picture-taking during video recording, Video light, Video calling, Video sharing

Front:

8 MP (HDR)
13 MP
5 MP

Video capture:

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

Design

Dimensions:

5.66 x 2.73 x 0.33 inches (143.8 x 69.3 x 8.4 mm)
6.44 x 2.96 x 0.35 inches (163.7 x 75.3 x 8.9 mm)
6.46 x 2.99 x 0.36 inches (164.2 x 75.9 x 9.1 mm)

Weight:

5.11 oz (145.0 g)
6.77 oz (192.0 g)
6.91 oz (196.0 g)

Materials:

Back: Plastic; Frame: Plastic

Resistance:

Water, Dust; IP68; MIL-STD-810 certified

Biometrics:

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

Features:

Notification light

Keys:

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

Colors:

Blue
Black, White, Blue, Red
Black, White, Blue

Cellular

LTE (FDD):

Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 12(700 a), 13(700 c), 20(800 DD), 66(AWS-3), 71(600)
Bands 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)
Bands 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)

LTE (TDD):

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

UMTS:

Bands 5(850), 4(1700/2100), 2(1900), 1(2100)
Bands 5(850), 8(900), 2(1900), 1(2100)
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, UMTS
LTE-A, 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:

Album art cover, Background playback

Screen mirroring:

DLNA, Wireless screen share
Wireless screen share
Wireless screen share

Radio:

FM

Additional microphone(s):

for Noise cancellation
for Noise cancellation

Connectivity & Features

Bluetooth:

4.2
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:

Mass storage device, OTG, Charging
Charging
Charging, Mass storage device

Location:

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

Sensors:

Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope
Accelerometer

Other:

NFC, UMA (Wi-Fi Calling), VoIP, Tethering, Computer sync, OTA sync
NFC

Hearing aid compatible:

M4, T3

Regulatory Approval

FCC approval:

Date approved:

Sep 24, 2018
Feb 07, 2021

FCC ID value:

ZNFQ610TA
ZCASMA025U

Measured SAR:

Head:

0.36 W/kg
1.00 W/kg

Body:

1.10 W/kg
0.85 W/kg

Simultaneous Transmission:

1.46 W/kg
1.40 W/kg

Wireless Router:

1.30 W/kg
0.85 W/kg

Buyers information

Price:

€ 240

User Manual:

This is the official Samsu​ng Galaxy A21s User Guide in English provided from the manufacturer.

In The Box:

Power brick, USB Cable, Headphones, Sim Card extractor tool

Availability

Officially announced:

May 21, 2018
May 15, 2020
FCC OKs Cingular\'s purchase of AT&T Wireless