LG K40 vs LG K8x 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 K40 LG K8x
Released · March 2019
Released · Jul 13, 2020
5.7-inch
5.7-inch
Single camera
Dual camera
2GB · 16GB
2GB · 32GB
3000 mAh
3000 mAh

Design

Dimensions
6.02 x 2.83 x 0.33 inches
153.0 x 71.9 x 8.3 mm
5.82 x 2.8 x 0.34 inches
147.8 x 71.1 x 8.6 mm
Weight
5.11 oz (145.0 g) 5.15 oz (146.0 g)
Materials
Back: Plastic Back: Plastic
Frame: Plastic
Resistance
Shock; 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
Black, Gray, Blue Silver

Display

Size
5.7-inch 5.7-inch
Resolution
1440x720px, 18:9 ratio, 282 PPI 1520x720px, 19:9 ratio, 295 PPI
Technology
IPS LCD IPS LCD
Screen-to-body
76.28 % 77.13 %
Features
Scratch-resistant glass (Tempered Glass), Ambient light sensor, Proximity sensor Ambient light sensor, Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 450 SDM450 (14 nm) MediaTek Helio P22 MT6762 (12 nm)
Processor
Octa-core
2000 MHz
ARM Cortex-A53
Octa-core
2000 MHz
Arm Cortex-A53
GPU
Adreno 506 IMG PowerVR GE8320
RAM
2GB (LPDDR3) 2GB
Internal storage
16GB, available to use: 8 GB 32GB
Storage expansion
microSDXC up to 2000 GB microSDXC
OS
Android (8.1 Oreo) Android (10)

Battery

Capacity
3000 mAh 3000 mAh
Type
Li - Polymer

Camera

Rear
Single camera Dual camera
Main camera
8 MP (PDAF)
Aperture size: F2.0
Sensor size: 1/3"
Pixel size: 1 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
Flash
LED LED
Video recording
1920x1080 (Full HD) (30 fps)
Video calling, Video sharing
1920x1080 (Full HD) (30 fps)
Front
5 MP (Flash) 5 MP, Video capture: 1920x1080 (Full HD)

Connectivity & Features

Bluetooth
5.0 5.0
WLAN
802.11 a,b,g,n,ac,dual-band
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, Glonass, Cell ID, Wi-Fi positioning GPS, A-GPS, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Compass Accelerometer
Other
NFC, VoIP, Tethering, Computer sync, OTA sync

Multimedia

Headphones
3.5mm jack 3.5mm jack
Speakers
Earpiece, Loudspeaker Earpiece, Loudspeaker
Features
Album art cover, Background playback
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), 66(AWS-3) Bands 2(1900), 4(AWS-1), 5(850), 12(700 a), 13(700 c), 25(1900+), 66(AWS-3)
4G (TDD)
Bands 41(2600+)
3G
Bands 5(850), 8(900), 2(1900), 1(2100) Bands 1(2100), 2(1900), 4(1700/2100), 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 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
Measured SAR
Head: 0.52 W/kg
Body: 0.91 W/kg
Simultaneous Transmission: 1.24 W/kg
Wireless Router: 0.94 W/kg

Buyers information

MSRP
$ 180 $ 40
In The Box
Handset, Travel Adapter, USB Data Cable, SIM card, Quick Reference Guide

Availability

Officially announced
Feb 20, 2019

Alternative variants

International version
System chip MediaTek Helio P22 MT6762 (12 nm)
Processor Octa-core
2000 MHz
ARM Cortex-A53
GPU IMG PowerVR GE8320
Internal storage 32GB, available to use: 20.2 GB
Main camera 16 MP
Front 8 MP
4G (FDD) Bands 1(2100), 3(1800), 7(2600), 8(900), 20(800 DD)
4G (TDD) Bands 38(2600)
Dual SIM Yes
for Metro by T-Mobile
Internal storage 32GB, available to use: 17.9 GB
OS Android (9.0 Pie)
Main camera 13 MP
Front 5 MP
4G (FDD) Bands 2(1900), 4(AWS-1), 5(850), 7(2600), 12(700 a), 25(1900+), 26(850+), 66(AWS-3), 71(600)
4G (TDD) Bands 41(2600+)
FCC approval Date approved: May 28, 2019
FCC ID value: ZNFX420MM
Measured SAR Head: 0.51 W/kg
Body: 0.98 W/kg
Simultaneous Transmission: 1.59 W/kg
Wireless Router: 0.98 W/kg
Phablet: 3.99 W/kg
FCC OKs Cingular\'s purchase of AT&T Wireless