LG G6 vs Samsung Galaxy A21 Specs Comparison

Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.

8.7
LG G6
LG G6 Samsung Galaxy A21
Released · Mar 10, 2017
Released · Jun 29, 2020
5.7-inch · 2880x1440px
6.5-inch · 1600x720px
Dual camera
Quad camera
4GB · 32GB
3GB · 32GB
3300 mAh
4000 mAh
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Design

Dimensions
5.86 x 2.83 x 0.31 inches
148.9 x 71.9 x 7.9 mm
6.61 x 3.02 x 0.32 inches
167.8 x 76.7 x 8.1 mm
Weight
5.75 oz (163.0 g) 6.81 oz (193.0 g)
Materials
Back: Glass (Corning Gorilla Glass 3)
Frame: Aluminum
Back: Plastic
Frame: Plastic
Resistance
Water, Dust, Shock; IP68; MIL-STD-810 certified
Biometrics
Fingerprint (touch) Fingerprint (touch)
Keys
Left: Volume control Right: Volume control, Lock/Unlock key
Colors
Black, Silver Black

Display

Size
5.7-inch 6.5-inch
Resolution
2880x1440px, 561 PPI 1600x720px, 20:9 ratio, 270 PPI
Technology
IPS LCD IPS LCD
Refresh rate
60Hz
Screen-to-body
79.47 % 79.20 %
Features
HDR support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor Ambient light sensor, Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 821 MSM8996 Pro (14 nm) Mediatek Helio P35 MT6765 (12 nm)
Processor
Quad-core
2350 MHz
Kryo
Octa-core
4x 2.3GHz Cortex-A53 + 4x 1.8GHz Cortex-A53
GPU
Adreno 530 PowerVR GE8320
RAM
4GB 3GB (LPDDR4)
Internal storage
32GB, available to use: 20.56 GB 32GB (eMMC 5.1), available to use: 19.8 GB
Storage expansion
microSDXC up to 2000 GB microSDXC up to 512 GB
OS
Android (8.0 Oreo, 7.0 Nougat), LG UX UI Android (10), Samsung One UI

Battery

Capacity
3300 mAh 4000 mAh
Type
Li - Polymer Li - Polymer
Charging
Qualcomm Quick Charge 3.0 Fast charging
Charge speed
Wired: 15.0W

Camera

Rear
Dual camera Quad camera
Main camera
13 MP (OIS, PDAF, CMOS image sensor)
Aperture size: F1.8
Focal length: 29 mm
Sensor size: 1/3.06"
Pixel size: 1.12 μm
16 MP (PDAF)
Aperture size: F1.8
Sensor size: 1/3.06"
Pixel size: 1 μm
Second camera
13 MP (Ultra-wide)
Aperture size: F2.4
Focal Length: 12 mm
8 MP (Ultra-wide)
Aperture size: F2.2
Sensor size: 1/4"
Pixel size: 1.12 μm
Third camera
2 MP (Macro)
Aperture size: F2.4
Fourth camera
2 MP (Depth information)
Aperture size: F2.4
Flash
Dual LED LED
Video recording
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (60 fps), 1280x720 (HD)
Time-lapse video, Picture-taking during video recording, EIS, Video calling, Video sharing
1920x1080 (Full HD) (30 fps)
Front
5 MP (Wide Angle) 13 MP, Video capture: 1920x1080 (Full HD)

Connectivity & Features

Bluetooth
4.2 5.0
WLAN
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
USB
Type-C, USB 2.0 Type-C, USB 2.0
Hearing aid compatible
M4/T3 M4/T3
Location
GPS, A-GPS GPS, A-GPS, Glonass, BeiDou, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Compass, Barometer Accelerometer, Gyroscope, Compass
Other
NFC, UMA (Wi-Fi Calling), Tethering, Computer sync, OTA sync NFC

Multimedia

Headphones
3.5mm jack 3.5mm jack
Speakers
Earpiece, Loudspeaker Earpiece, Loudspeaker
Features
32-Bit DAC, aptX-HD
Screen mirroring
DLNA,Wireless screen share Wireless screen share
Radio
FM
Additional microphone(s)
Noise cancellation, Video recording

Cellular

4G (FDD)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 12(700 a), 13(700 c), 17(700 b), 20(800 DD), 25(1900+) 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)
4G (TDD)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+)
3G
Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100) Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Data Speed
LTE-A Cat 11 (600/75 Mbit/s), HSPA, HSUPA, UMTS LTE-A Cat 6 (300/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
SIM type
Nano SIM Nano SIM
HD Voice
Yes Yes
VoLTE
Yes

Phone Features

Notifications
Haptic feedback
Other features
Voice dialing, Voice commands, Voice recording

Regulatory Approval

FCC approval
Date approved: Apr 17, 2020
FCC ID value: ZCASMA215U
Measured SAR
Head: 0.42 W/kg
Body: 1.27 W/kg
Simultaneous Transmission: 1.27 W/kg
Wireless Router: 1.27 W/kg

Buyers information

MSRP
$ 250
In The Box
This is the official Samsu​ng Galaxy A21 User Guide in English provided from the manufacturer.

Availability

Officially announced
Feb 26, 2017 Apr 08, 2020

Alternative variants

with 64 GB storage
Internal storage 64GB, available to use: 50.7 GB
for Verizon
4G (FDD) Bands 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)
4G (TDD) Bands 38(2600), 40(2300), 41(2600+)
3G Bands 5(850), 8(900), 2(1900), 1(2100)
for Verizon Wireless
OS Android (9.0 Pie)
4G (FDD) Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 13(700 c), 20(800 DD)
3G Bands 5(850), 8(900), 2(1900), 1(2100)
FCC approval Date approved: Feb 27, 2017
FCC ID value: ZNFVS988
Measured SAR Head: 0.30 W/kg
Body: 0.49 W/kg
Simultaneous Transmission: 1.59 W/kg
Wireless Router: 0.48 W/kg
for Sprint
4G (FDD) Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 12(700 a), 13(700 c), 25(1900+), 26(850+), 66(AWS-3), 71(600)
4G (TDD) Bands 41(2600+)
for T-Mobile
4G (FDD) Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 12(700 a), 13(700 c), 20(800 DD)
for Sprint and Boost Mobile
4G (FDD) Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 12(700 a), 25(1900+), 26(850+)
4G (TDD) Bands 41(2600+)
FCC approval Date approved: Feb 27, 2017
FCC ID value: ZNFLS993
Measured SAR Head: 0.26 W/kg
Body: 1.07 W/kg
Simultaneous Transmission: 1.59 W/kg
Wireless Router: 1.07 W/kg
for AT&T
OS Android (9.0 Pie)
4G (FDD) Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 12(700 a), 20(800 DD), 29(700 d), 30(2300 WCS)
FCC approval Date approved: Apr 07, 2017
FCC ID value: ZNFH871
Measured SAR Head: 0.70 W/kg
Body: 0.42 W/kg
Simultaneous Transmission: 1.59 W/kg
Wireless Router: 0.42 W/kg
International version
4G (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), 28(700 APT)
4G (TDD) Bands 38(2600)
3G Bands 5(850), 8(900), 4(1700/2100), 3(1800), 2(1900), 1(2100)
Radio FM
FCC approval Date approved: Mar 24, 2017
FCC ID value: ZNFH870
Measured SAR Head: 0.69 W/kg
Body: 0.10 W/kg
Simultaneous Transmission: 1.41 W/kg
Wireless Router: 0.14 W/kg
FCC OKs Cingular\'s purchase of AT&T Wireless