LG K31 vs Samsung Galaxy A02s

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

Display

Size:

5.7 inches
6.5 inches

Resolution:

1520 x 720 pixels, 19:9 ratio, 295 PPI
1600 x 720 pixels, 20:9 ratio, 270 PPI

Technology:

IPS LCD
IPS LCD

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
Qualcomm Snapdragon 450 SDM450

Processor:

Octa-core, 2000 MHz, Arm Cortex-A53, 64-bit, 12 nm
Octa-core, 1800 MHz, Cortex-A53, 64-bit, 14 nm

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

Device type:

Smartphone
Smartphone

OS:

Android (10)
Android (11, 10)

Battery

Capacity:

3000 mAh
5000 mAh

Type:

Not user replaceable
Li - Polymer, Not user replaceable

Charging:

Samsung Adaptive Fast Charging

Max charge speed:

Wired: 15.0W

Camera

Rear:

Dual camera
Triple camera

Main camera:

13 MP (PDAF)
13 MP (Autofocus)

Specifications:

Aperture size: F1.8; Sensor size: 1/3"; Pixel size: 1.12 μm
Aperture size: F2.2

Second camera:

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

Specifications:

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

Third camera:

2 MP (Depth information)

Specifications:

Aperture size: F2.4

Video recording:

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

Front:

5 MP
5 MP

Video capture:

1920x1080 (Full HD)

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

Cellular

LTE (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)

LTE (TDD):

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

UMTS:

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

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):

for Noise cancellation
for Noise cancellation

Connectivity & Features

Bluetooth:

5.0
4.2

Wi-Fi:

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 (reversible), USB 2.0

Features:

Charging
Charging, Mass storage device

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)

Hearing aid compatible:

M3, T3

Regulatory Approval

FCC approval:

Date approved:

Sep 14, 2020
Feb 07, 2021

FCC ID value:

ZNFK300AM
ZCASMA025U

Measured SAR:

Head:

0.47 W/kg
1.00 W/kg

Body:

0.91 W/kg
0.85 W/kg

Simultaneous Transmission:

1.26 W/kg
1.40 W/kg

Wireless Router:

1.02 W/kg
0.85 W/kg

Buyers information

Price:

$ 150

User Manual:

This is the official LG K31 User Guide in English provided from the manufacturer.

In The Box:

Travel Adapter, USB Cable
Power brick, USB Cable, Headphones, Sim Card extractor tool
FCC OKs Cingular\'s purchase of AT&T Wireless