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 · 1440x720px
5.7-inch · 1520x720px
Single camera
Dual camera
2GB · 16GB
2GB · 32GB
3000 mAh
3000 mAh

Availability

Officially announced
Feb 20, 2019
MSRP
$ 180 $ 40

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, 76.28% screen-to-body 5.7-inch, 77.13% screen-to-body
Type
IPS LCD IPS LCD
Resolution
1440x720px, 18:9 ratio, 282 PPI 1520x720px, 19:9 ratio, 295 PPI
Protection
Tempered Glass

Hardware

System chip
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
Memory
2GB (LPDDR3)/16GB
2GB/32GB
2GB/32GB
Storage expansion
microSDXC up to 2000 GB microSDXC
OS
Android (8.1 Oreo) Android (10)

Battery

Type
3000 mAh, Li - Polymer 3000 mAh

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
1080p (30 fps)
Video calling, Video sharing
1080p (30 fps)
Front
5 MP (Flash) 5 MP
Video capture: 1080p

Connectivity & Features

Bluetooth
5.0 5.0
WLAN
a,b,g,n,ac,dual-band
Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac
b,g,n
Wi-Fi Direct, Hotspot
802.11 b, g, n
USB
microUSB, USB 2.0 microUSB, USB 2.0
Sensors
Accelerometer, Compass, Ambient light sensor, Proximity sensor Accelerometer, Ambient light sensor, Proximity sensor
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
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, 4, 5, 12, 13, 66 2, 4, 5, 12, 13, 25, 66
4G (TDD) Bands
41
3G Bands
5, 8, 2, 1 1, 2, 4, 5, 8
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

Alternative variants

International version
System chip MediaTek Helio P22 MT6762 (12 nm)
Processor Octa-core
2000 MHz
ARM Cortex-A53
GPU IMG PowerVR GE8320
Memory 32GB
Main camera 16 MP
Front 8 MP
4G (FDD) Bands 1, 3, 7, 8, 20
4G (TDD) Bands 38
Dual SIM Yes
for Metro by T-Mobile
Memory 32GB
OS Android (9.0 Pie)
Main camera 13 MP
Front 5 MP
4G (FDD) Bands 2, 4, 5, 7, 12, 25, 26, 66, 71
4G (TDD) Bands 41
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