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LG K8x vs LG K31 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.

Comparison mode:
Specs Size
Differences only
LG K8x
LG K31
LG K8x LG K31
Released · Jul 13, 2020
Released · Aug 21, 2020
5.7-inch · 1520x720px
5.7-inch · 1520x720px
Dual camera
Dual camera
2GB · 32GB
2GB · 32GB
3000 mAh
3000 mAh

Design

Dimensions
5.82 x 2.8 x 0.34 inches
147.8 x 71.1 x 8.6 mm 		5.82 x 2.8 x 0.34 inches
147.8 x 71.1 x 8.6 mm
Weight
5.15 oz (146.0 g) 5.15 oz (146.0 g)
Materials
Back: Plastic
Frame: Plastic 		Back: Plastic
Frame: Plastic
Resistance
Yes; MIL-STD-810 certified
Biometrics
Fingerprint (touch) Fingerprint (touch)
Keys
Left: Volume control; Right: Lock/Unlock key Left: Volume control; Right: Lock/Unlock key
Colors
Silver Silver

Display

Size
5.7-inch 5.7-inch
Resolution
1520x720px, 19:9 ratio, 295 PPI 1520x720px, 19:9 ratio, 295 PPI
Technology
IPS LCD IPS LCD
Screen-to-body
77.13 % 77.13 %
Features
Ambient light sensor, Proximity sensor Ambient light sensor, Proximity sensor

Hardware

System chip
MediaTek Helio P22 MT6762 (12 nm) MediaTek Helio P22 MT6762 (12 nm)
Processor
Octa-core
2000 MHz
Arm Cortex-A53 		Octa-core
2000 MHz
Arm Cortex-A53
GPU
IMG PowerVR GE8320 IMG PowerVR GE8320
RAM
2GB 2GB
Internal storage
32GB 32GB, available to use: 17 GB
Storage expansion
microSDXC microSDXC up to 32 GB
OS
Android (10) Android (10)

Battery

Capacity
3000 mAh 3000 mAh

Camera

Rear
Dual camera Dual camera
Main camera
13 MP (PDAF)
Aperture size: F1.8
Sensor size: 1/3"
Pixel size: 1.12 μm 		13 MP (PDAF)
Aperture size: F1.8
Sensor size: 1/3"
Pixel size: 1.12 μm
Second camera
5 MP (Ultra-wide)
Aperture size: F2.2
Sensor size: 1/5"
Pixel size: 1.12 μm 		5 MP (Ultra-wide)
Aperture size: F2.2
Sensor size: 1/5"
Pixel size: 1.12 μm
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, Video capture: 1920x1080 (Full HD)

Connectivity & Features

Bluetooth
5.0 5.0
WLAN
802.11 b,g,n
Wi-Fi Direct, Hotspot 		802.11 b,g,n
Wi-Fi Direct, Hotspot
USB
microUSB, USB 2.0 microUSB, USB 2.0
Hearing aid compatible
M3/T3 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 FM
Additional microphone(s)
Noise cancellation

Cellular

4G (FDD)
Bands 2(1900), 4(AWS-1), 5(850), 12(700 a), 13(700 c), 25(1900+), 66(AWS-3) Bands 2(1900), 4(AWS-1), 5(850), 12(700 a), 13(700 c), 25(1900+), 26(850+), 66(AWS-3), 71(600)
4G (TDD)
Bands 41(2600+) Bands 41(2600+)
3G
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900) Bands 1(2100), 2(1900), 4(1700/2100), 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-A Cat 7 (300/100 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
SIM type
Nano SIM Nano SIM
HD Voice
Yes Yes

Regulatory Approval

FCC approval
Date approved: Apr 01, 2020
FCC ID value: ZNFK300UM 		Date approved: Sep 14, 2020
FCC ID value: ZNFK300AM
Measured SAR
Head: 0.52 W/kg
Body: 0.91 W/kg
Simultaneous Transmission: 1.24 W/kg
Wireless Router: 0.94 W/kg 		Head: 0.47 W/kg
Body: 0.91 W/kg
Simultaneous Transmission: 1.26 W/kg
Wireless Router: 1.02 W/kg

Buyers information

MSRP
$ 40 $ 150
In The Box
Handset, Travel Adapter, USB Data Cable, SIM card, Quick Reference Guide Travel Adapter, USB Cable
FCC OKs Cingular\'s purchase of AT&T Wireless