LG K31 vs Samsung Galaxy A02s 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.

LG K31 Samsung Galaxy A02s
Released · Aug 21, 2020
Released · Jan 04, 2021
5.7-inch · 1520x720px
6.5-inch · 1600x720px
Dual camera
Triple camera
2GB · 32GB
3GB · 32GB
3000 mAh
5000 mAh
Check prices

Design

Dimensions
5.82 x 2.8 x 0.34 inches
147.8 x 71.1 x 8.6 mm
6.46 x 2.99 x 0.36 inches
164.2 x 75.9 x 9.1 mm
Weight
5.15 oz (146.0 g) 6.91 oz (196.0 g)
Materials
Back: Plastic
Frame: Plastic
Back: Plastic
Frame: Plastic
Resistance
Yes; MIL-STD-810 certified
Biometrics
Fingerprint (touch)
Keys
Left: Volume control; Right: Lock/Unlock key Right: Volume control, Lock/Unlock key
Colors
Silver Black, White, Blue

Display

Size
5.7-inch 6.5-inch
Resolution
1520x720px, 19:9 ratio, 295 PPI 1600x720px, 20:9 ratio, 270 PPI
Technology
IPS LCD IPS LCD
Refresh rate
60Hz
Screen-to-body
77.13 % 81.80 %
Features
Ambient light sensor, Proximity sensor Ambient light sensor, Proximity sensor

Hardware

System chip
MediaTek Helio P22 MT6762 (12 nm) Qualcomm Snapdragon 450 SDM450 (14 nm)
Processor
Octa-core
2000 MHz
Arm Cortex-A53
Octa-core
8x 1.8GHz Cortex-A53
GPU
IMG PowerVR GE8320 Adreno 506
RAM
2GB 3GB
Internal storage
32GB, available to use: 17 GB 32GB (eMMC 5.1), available to use: 20.5 GB
Storage expansion
microSDXC up to 32 GB microSDXC up to 1024 GB
OS
Android (10) Android (12, 11, 10)

Battery

Capacity
3000 mAh 5000 mAh
Type
Li - Polymer
Charging
Samsung Adaptive Fast Charging
Charge speed
Wired: 15.0W

Camera

Rear
Dual camera Triple camera
Main camera
13 MP (PDAF)
Aperture size: F1.8
Sensor size: 1/3"
Pixel size: 1.12 μm
13 MP (Autofocus)
Aperture size: F2.2
Second camera
5 MP (Ultra-wide)
Aperture size: F2.2
Sensor size: 1/5"
Pixel size: 1.12 μm
2 MP (Macro)
Aperture size: F2.4
Third camera
2 MP (Depth information)
Aperture size: F2.4
Flash
LED LED
Video recording
1920x1080 (Full HD) (30 fps) 1920x1080 (Full HD) (30 fps)
Front
5 MP, Video capture: 1920x1080 (Full HD) 5 MP

Connectivity & Features

Bluetooth
5.0 4.2
WLAN
802.11 b,g,n
Wi-Fi Direct, Hotspot
802.11 b,g,n,802.1x
Wi-Fi Direct, Hotspot
USB
microUSB, USB 2.0 Type-C, USB 2.0
Hearing aid compatible
M3/T3
Location
GPS, A-GPS, Cell ID, Wi-Fi positioning GPS, A-GPS, Cell ID, Wi-Fi positioning
Sensors
Accelerometer Accelerometer
Other
UMA (Wi-Fi Calling)

Multimedia

Headphones
3.5mm jack 3.5mm jack
Speakers
Earpiece, Loudspeaker Earpiece, Loudspeaker
Screen mirroring
Wireless screen share Wireless screen share
Radio
FM
Additional microphone(s)
Noise cancellation Noise cancellation

Cellular

4G (FDD)
Bands 2(1900), 4(AWS-1), 5(850), 12(700 a), 13(700 c), 25(1900+), 26(850+), 66(AWS-3), 71(600) Bands 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)
4G (TDD)
Bands 41(2600+) Bands 38(2600), 40(2300), 41(2600+)
3G
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900) Bands 1(2100), 5(850), 8(900)
Data Speed
LTE-A Cat 7 (300/100 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
SIM type
Nano SIM Nano SIM
HD Voice
Yes

Regulatory Approval

FCC approval
Date approved: Sep 14, 2020
FCC ID value: ZNFK300AM
Date approved: Feb 07, 2021
FCC ID value: ZCASMA025U
Measured SAR
Head: 0.47 W/kg
Body: 0.91 W/kg
Simultaneous Transmission: 1.26 W/kg
Wireless Router: 1.02 W/kg
Head: 1.00 W/kg
Body: 0.85 W/kg
Simultaneous Transmission: 1.40 W/kg
Wireless Router: 0.85 W/kg

Buyers information

MSRP
$ 150
In The Box
Travel Adapter, USB Cable Power brick, USB Cable, Headphones, Sim Card extractor tool

Availability

Officially announced
Nov 24, 2020

Alternative variants

with 64GB storage
RAM 4GB
Internal storage 64GB
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