LG K8 (2018) vs LG K40 Specs Comparison

Display

Size
5.0-inch	5.7-inch
Resolution
1280 x 720 px, 294 PPI	1440 x 720 px, 18:9 ratio, 282 PPI
Technology
TFT	IPS LCD
Screen-to-body
66.22 %	76.28 %
Colors
16 777 216
Features
Ambient light sensor, Proximity sensor	Scratch-resistant glass (Tempered Glass), Ambient light sensor, Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 425 MSM8917 (28 nm)	Qualcomm Snapdragon 450 SDM450 (14 nm)
Processor
Quad-core, 1400 MHz, ARM Cortex-A53, 64-bit	Octa-core, 2000 MHz, ARM Cortex-A53, 64-bit
GPU
Adreno 308	Adreno 506
RAM
2GB (LPDDR3)	2GB (LPDDR3)
Internal storage
16GB, available to use: 9.32 GB	16GB, available to use: 8 GB
Storage expansion
microSDHC up to 32 GB	microSDXC up to 2000 GB
OS
Android (7.1 Nougat)	Android (8.1 Oreo)
Device type
Smartphone	Smartphone

Battery

Capacity
2500 mAh	3000 mAh
Type
Li - Ion, User replaceable	Li - Polymer, Not user replaceable

Camera

Rear
Single camera	Single camera
Main camera
8 MP (Autofocus)	8 MP (PDAF) Specifications: Aperture size: F2.0 Sensor size: 1/3" Pixel size: 1 μm
Flash
LED	LED
Video recording
1920x1080 (Full HD) (30 fps) Features: Picture-taking during video recording, Video calling, Video sharing	1920x1080 (Full HD) (30 fps) Features: Video calling, Video sharing
Front
5 MP, Video capture: 1920x1080 (Full HD)	5 MP (Flash)

Design

Dimensions
5.7 x 2.83 x 0.31 inches (144.8 x 71.9 x 7.9 mm)	6.02 x 2.83 x 0.33 inches (153.0 x 71.9 x 8.3 mm)
Weight
4.95 oz(140.0 g)	5.11 oz(145.0 g)
Materials
Back: Plastic	Back: Plastic
Resistance
	Shock; MIL-STD-810 certified
Biometrics
	Fingerprint (touch)
Keys
Left: Volume control; Back: Lock/Unlock key	Left: Volume control; Right: Lock/Unlock key
Colors
Blue	Black, Gray, Blue

Cellular

4G (FDD)
Bands 2(1900), 4(AWS-1), 5(850), 12(700 a)	Bands 2(1900), 4(AWS-1), 5(850), 12(700 a), 13(700 c), 66(AWS-3)
3G
Bands 5(850), 4(1700/2100), 2(1900)	Bands 5(850), 8(900), 2(1900), 1(2100)
Data Speed
LTE Cat 4 (150/50 Mbit/s), HSPA, HSUPA, UMTS	LTE-A Cat 6 (300/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
SIM type
Nano SIM	Nano SIM
HD Voice
	Yes
VoLTE
Yes

Multimedia

Headphones
3.5mm jack	3.5mm jack
Speakers
Earpiece, Loudspeaker	Earpiece, Loudspeaker
Features
Album art cover, Background playback	Album art cover, Background playback
Screen mirroring
Wireless screen share	Wireless screen share
Radio
FM	FM
Additional microphone(s)
Noise cancellation	Noise cancellation

Connectivity & Features

Bluetooth
4.2	5.0
Wi-Fi
802.11 b,g,n Hotspot, Wi-Fi Direct	802.11 a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot
USB
microUSB, USB 2.0, Features: Mass storage device, Charging	microUSB, USB 2.0, Features: Charging, OTG, Mass storage device
Hearing aid compatible
M3/T3	M3/T3
Location
GPS, A-GPS	GPS, A-GPS, Glonass, Cell ID, Wi-Fi positioning
Sensors
Accelerometer	Accelerometer, Compass
Other
UMA (Wi-Fi Calling), VoIP, Tethering, Computer sync, OTA sync	NFC, VoIP, Tethering, Computer sync, OTA sync

Buyers information

Price
$ 140	$ 180
In The Box
Battery, USB Cable and Power adapter

Availability

Officially announced
Feb 22, 2018	Feb 20, 2019

Alternative variants

4G (FDD)	Bands 2(1900), 4(AWS-1), 5(850), 12(700 a), 25(1900+)

International version

System chip	MediaTek Helio P22 MT6762 (12 nm)
Processor	Octa-core, 2000 MHz, ARM Cortex-A53, 64-bit
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

Links

Full specifications
LG K8 (2018) Specs	LG K40 Specs
User Reviews
	LG K40 User Reviews