Operating system
Android
Processor
2 GHz
Screen Size
5.7"
Camera
16+ MP



Prices (Where to Buy)




Common Questions


LG released the K40 on April 30, 2019.


The K40 price will vary depending on retailer, age, special offers and whether or not it's purchased with a service plan. If purchased with a 2 year service contract for example, you would likely pay much less for the phone itself up front. You can compare LG K40 prices from around the web here on The Informr.


We've got you covered! Download a free PDF copy of the LG K40 user manual here.


LG backs up the K40 with a 1 Year parts & labour warranty.


If your K40 has problems and is still within its warranty period, you could contact LG support or the retailer you purchased the phone from. You'll find LG's contact information here. If your phone is off warranty and needs repair for a physical problem such as a broken screen or bad battery, you should visit an authorized service centre or a local phone repair shop. You can also connect with others in The Informr Community Forum to find and share answers to questions.



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Screen Size
5.7"

The LG K40's screen size is 5.7 inches with 720 x 1440 pixels resolution.

Processor
2 GHz

There is a MediaTek MT6762 Helio P22 (12 nm) Octa-core 2 GHz processor (CPU).

OS

The phone runs on the Android 8.1 Oreo operating system (OS).

Camera
16+ MP

You can take photos or capture video with the phone's onboard 16+ megapixel camera.

There is also a secondary front facing camera with 8+ megapixels resolution.

Storage
32 GB

Internal memory is 32 GB. An external, MicroSD (up to 2048 GB) expansion slot is available for increased storage capacity.

Battery
3000mAh

The phone is powered by a Lithium Polymer (Li-Pol), 3000 mAh battery. LG's performance ratings are 480 minutes.

LG K40 Specs

Overview
Release date April 30, 2019
Regions available USA, UK, India
Networks
LTE:
800/900/1800/2100 /2600 MHz
GSM:
850/900/1800/1900 MHz
UMTS:
850/900/1900/2100 MHz
Data:
GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE
SIM card Nano-SIM
Dual SIM Yes
Operating System Android 8.1 Oreo

Compare Android Smartphones

Processor MediaTek MT6762 Helio P22 (12 nm) Octa-core 2 GHz
Internal Storage 32 GB
RAM 2 GB
ROM Unknown
GPS Type A-GPS
Digital compass Yes
Flightmode Yes
Hearing Aid Compatible Unknown
TTY/TDD Unknown
Noise Cancellation Yes
SAR Head: 0.518 W/kg
Body: 1.579 W/kg
Languages English
Manufacturer Warranty 1 Year
Accessories Included USB Power Adapter, Manual, Data Cable
Power & battery
Type Lithium Polymer (Li-Pol)
Battery Capacity 3000 mAh
Removable Battery No
Wireless Charging No
Fast Charging No
Video Playback Time Unknown
Internet Use (Wi-Fi) Unknown
Internet Use (Celluar) Unknown
Talk Time Up to: 480 minutes
Standby Time Up to: 4.2 days
Physical Characteristics
Design type Bar
Multi-Use Smart Phone / PDA Yes
Material Plastic
Colors Black, New Moroccan Blue, New Platinum Gray
Dimensions [H x W x D] 15.3 x 7.19 x 0.83 cm (6 x 2.8 x 0.3 in)
Weight 144 grams
Water Resistant / Waterproof No
Rugged design No
IP Rating Unknown
Antenna Type Internal
Changeable Faceplates No
Display / Screen
Type Color
Technology LCD (IPS)
Colors 16.7 million
Resolution 720 x 1440 pixels
Pixel density 282 pixels
Size 5.7 inches
3D No
Secondary Display No
Sensors Proximity, Motion / Accelerometer
Graphics Yes
Themes Yes
Backlit Illumination Yes
Zoom / Magnification Yes
Screen Orientation Lock Yes
Multi-Touch Yes
Fingerprint-Resistant Coating No
Additional Display Features Capacitive touchscreen
Input / Navigation
Sleep / Wake Key Yes
Home Key No
Mute Key No
Input Type Touchscreen
Navigation Type Touchscreen
Predictive Text Entry Yes
Physical keyboard No
Voicemail Key No
Any Key Answer No
Voice Commands Yes
Keypad/Screen Lock Yes
External Volume Control Yes
External Media Playback Controls No
Fingerprint Sensor Yes
Call Management
Wi-Fi Calling Yes
Voice over LTE (VoLTE) Yes
Contact List Capacity Depends on system memory
Multiple Numbers Per Contact Email address, Other fields
Contact Groups Yes
Auto Answer Unknown
Voice Activated Dialing Yes
Photo Caller ID Yes
Web / Email / Messaging
Web Browser Yes
Email Client Yes
Email Protocols POP3, IMAP, SMTP, Microsoft Exchange
Additional Email Features
Messaging SMS, MMS, IM
Push-to-talk (PTT) No
Connectivity
USB Micro-USB 2.0
USB OTG Support Yes
Infrared Yes
Bluetooth 5.0
Bluetooth Profiles A2DP, AVRCP, OPP/FTP, HFP, HSP
Bluetooth Audio Codecs AAC, aptX, aptX HD
WiFi 802.11 a/b/g/n
WiFi Encryption WEP/WPA/WPA2
Mobile Hotspot Yes
WiMAX No
Memory Expansion Slot Yes
Expansion Slot Info MicroSD (up to 2048 GB)
PC Synchronization OTA
TV Out No
DLNA Support Yes
NFC Yes
UMA Support Unknown
Data Tethering Compatibility Yes
Java Applications No
Brew Applications No
ECML / Digital Wallet Unknown
PictBridge Unknown
Camera
Main Camera
Aperture
ƒ/ 2.0
Resolution
16+ megapixels
Dual lens
No
Zoom
Yes
Flash
Yes (LED)
Additional Rear Camera Info
Auto focus, Effects, Face detection, Geotagging, Image stabilization, ISO, Multi-shot, Panorama, Self-timer, White balance, HDR, PDAF, AI CAM
Video Recording Formats
MPEG-4
Video Recording Parameters
Full HD (1920 x 1080 pixels), 30 fps
Front Camera
Resolution
8+ megapixels
Zoom
Additional Front Camera Info
Face detection, F/2.0, adjustable intensity LED flash
Video Recording Parameters
Full HD (1920 x 1080 pixels), 30 fps
Audio / Video
Audio Playback Yes
Audio Formats AAC, AAC+, AMR-NB, AMR-WB, eAAC+, MIDI, MP3, M4A, OGG, WMA, WAV
Radio No
Video Playback Yes
Video Playback Formats 3GP / 3GPP, AVI, H.264 / AVC, MKV, MPEG-4, WMV, XviD
Mobile TV Unknown
Streaming Video Yes
External Speakers Yes
Headset Jack 3.5mm
Custom Ringtones Yes
Vibration Alert Yes
Downloadable Ringtones Yes
Ringtone Composer Unknown
Ringer ID Yes
Haptic Feedback Vibration Yes
Speakerphone Yes
Apps
To-Do / Task List Unknown
Calendar Yes
World Clock Yes
Alarm Yes
Stop Watch Yes
Timer Yes
Calculator Yes
Currency Converter Unknown
Document Viewer Yes
Weather Yes
Stocks Unknown
Maps Yes
NotePad Unknown
Voice Memos / Recorder Yes
Games Downloadable
Apps Downloadable
Included Software / Apps
More
Additional comments Other Names (AKA): LG K12+, LG K12 Plus, LG X4 (2019), LMX420EMW

Related Links Quick Start Guide (PDF)
Manual (PDF)
Where to buy LG K40
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