LG K40 16GB Smartphone (Unlocked)

LG K40 16GB Smartphone (Unlocked)
Key Features
  • GSM+CDMA/4G LTE Wireless Connectivity
  • North American Variant
  • Rear 8MP AI-Enhanced Camera
  • Supports Google Lens & HDR Photos
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The K40 16GB Smartphone from LG is a solid mid-range smartphone that features a host of mobile photography and entertainment features. You get an 8MP AI-enhanced rear camera with Google Lens and HDR photo support, a 5MP selfie cam with Beauty Shot, and a stunning 5.7" HD+ display with curved 2.5D Arc Glass.
No Longer Available
This device is unlocked and should work fully with carriers listed below with green bars. Yellow bars denote partial network coverage. A SIM card and service plan must be purchased separately. Network compatibility listed here is for reference only and does not guarantee phone compatibility or activation on CDMA Carriers.
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LG K40 Overview

  • 1Description
  • 2Android 8.1 Oreo
  • 3GSM + CDMA / 4G LTE Wireless Connectivity
  • 4North American Variant / US Compatible LTE
  • 5Interactivity Features
  • 6Camera & Video Features
  • 7Entertainment Features
  • 8Connectivity Features
  • 9Other Features

The K40 16GB Smartphone from LG is a solid mid-range smartphone that features a host of mobile photography and entertainment features. You get an 8MP AI-enhanced rear camera with Google Lens and HDR photo support, a 5MP selfie cam with Beauty Shot, and a stunning 5.7" HD+ display with curved 2.5D Arc Glass.

In addition to mobile photography, audio, video, and gaming functionality, the LG K40 is bundled with a host of interactivity features. Some highlights include QuickMemo+, which lets you take stylized notes with a variety of color options and paper styles. With Knock On, you can put your phone to sleep, or wake it up, with a simple double-tap. And Content Lock gives you the ability to keep things private by password-protecting specific images and videos.

Running the Android 8.1 Oreo operating system, this phone is powered by a 1.8 GHz Octa-Core Snapdragon 450 processor and 2GB of RAM. You can store your apps and snaps on 16GB of built-in storage, which can be expanded via an (optional) microSD card up to 2TB in size. This phone is unlocked and compatible with GSM+CDMA/4G LTE networks. Connect to the internet and other devices with built-in Wi-Fi 5 (802.11ac), Wi-Fi Direct, and Bluetooth 4.2.

Android 8.1 Oreo

The Android operating system integrates heavily with Google's services. Using the card-based Google Now, Android quickly surfaces information for you whenever you need it, powered by the same Knowledge Engine that runs Google's web search. It's a personalized and customizable OS, allowing you to add your favorite apps or widgets to your home screen. You can even download new themes using the Google Play Store, which offers access to millions of apps, games, books, music, movies, and more. Android 8.1 Oreo adds major productivity and security capabilities to the operating system. They've introduced Google Play Protect, which scans apps on your phone to detect harmful behavior. With the touch of the Home button, continue to work in apps while watching active videos in Picture-in-Picture mode. Other features include, faster boot speed, automatically turning on Wi-Fi when near saved networks, limiting background activity for little used apps, notification snoozing, smart text selection, and more.

GSM + CDMA / 4G LTE Wireless Connectivity

This phone is designed to work on select GSM and CDMA networks and is 4G LTE capable. LTE is an advanced cellular network data protocol capable of data speeds so fast that they compete with wired broadband Internet providers. With an LTE connection, this phone should have no problem streaming HD video, downloading apps, uploading photos, or anything else that requires a high-speed data connection. The phone is also backwards compatible with 3G and 2G data for instances when you can't get LTE. In addition to cellular wireless, this phone also features Bluetooth, NFC, and Wi-Fi connectivity.

Note: Not compatible with all cellular networks. Please make sure your provider uses a frequency or band that this phone supports, and that they will allow you to used carrier unlocked phones. You can check which bands this phone works within the Specifications.

North American Variant / US Compatible LTE

The K40 is a US variant. It may be used in other parts of the world; however, LTE access may be limited or unsupported, depending on the network. Please choose your country/carrier above to confirm the network compatibility of this phone.

Interactivity Features

ECO Playback: Lowers screen brightness with certain video content
LG UX 7.0: Lets you swipe to browse all installed apps
Do Not Disturb: Control notifications and alerts received; choose to receive all, none, or only those from a specific priority list
Multilanguage Support: For both phone and keyboard input
QSlide: Overlay up to two windows with adjustable sizing and transparency
Capture+: Write or draw on nearly any screen and schedule memos to appear at certain times or locations
Battery Saver: Restrict apps in the background to save power
Clip Tray: Copy multiple items and paste in a clipboard at the bottom of the screen, creating a collection of information to save or send
Ringtone ID: Unique ringtone created for each caller based on phone numbers
Smart Cleaning: Optimize phone storage and test hardware for improved performance

Camera & Video Features

AI Cam: Suggest the optimal effect and angle by automatically identifying what's in the shot
Google Lens: Searches what you see and provides relevant online information; features QR code and real-time translator
Timer Helper: Set the flash on a timer for 3 seconds or 10 seconds to capture group pictures
Flash Jump Cut: Photos are taken every 3 seconds and saved as a GIF
HDR: Corrects backlighting with multiple exposure techniques
Quick Share Capability: Access social platforms instantly after taking pictures and videos
Burst Shot: Hold the shutter button to take multiple shots quickly
Cheese Shutter: User your voice to take a photo
Digital Zoom: Up to 4x
Portrait Mode: Bokeh effect blurs the background while keeping the subject in focus
Auto Shot: Face detection automatically takes a selfie
Gesture Shot: Take selfies with a simple hand gesture
Gesture View: Transitions between camera mode and preview mode automatically when the phone is lowered
Beauty Shot: Adjustable setting softens facial features
Tag Location: Include location information with photos and videos
Live Shot: Take still shots while recording video
Self-Timer: Choose to take a picture or video 3 or 10 seconds after you press the shutter/record button
Front flash light on 5MP selfie camera
Gesture Interval Shot and Interval Shot: Make a fist twice or hold the shutter button to take four selfies on a timer
Record up to 1080p videos at 30 fps

Entertainment Features

DTS:X 3D Surround: Deep 3D stereo audio experience
Music Flash: Flash produces a lighting effect to match the beat when music plays
Music Library: Organized by song, album, artist, genre, folder, and playlist
Accelerometer: Control games by turning and tilting the phone
Video Player with Touch Lock, Resume Play, Play on Lock Screen, and Video Screenshot Function
Supports 3GP, 3G2, MP4, AVI, HEVC/H.265, MKV, ASF, WebM, FLV, and TS formats
Music Player with sleep timer and notification panel controls
Supports AAC, AAC+, AIFF, AMR, eAAC+, FLAC, M4A, MIDI, MP3, OGG, PCM, WAV, and WMA formats

Connectivity Features

USB and Bluetooth Tethering: Share your phone's internet connection with your computer
HD Voice Calling: Available on Verizon/T-Mobile/MPCS
Wi-Fi Calling: Available on T-Mobile/MPCS
Media Sync (MTP): Transfer files or synchronize with Windows Media Player
MIDI Device: Connect to compatible musical instruments via USB
Mobile Hotspot: Share a 4G LTE data connection with up to 8 compatible wireless devices
S-GPS, A-GPS, and Qualcomm for enhanced location accuracy

Other Features

Google Assistant button
Fingerprint sensor
Hearing aid compatible (HAC): M3/T3 rating

LG K40 Specs

Operating SystemAndroid 8.1 Oreo
Memory2 GB
ChipsetQualcomm Snapdragon450
CPU1.8 GHz Octa-Core
Storage16 GB
Native Resolution1440 x 720
Pixel Density283 ppi
Panel TypeLCD
Input/Output Connectors
Ports1 x USB Micro-B
Speaker1 x Down-Firing
1 x Front-Facing
Flash Media Slot1 x microSDXC
SIM Card Slots1 x Nano SIM
CDMA 2GCDMA: 800, 1900 MHz
GSM 2GGSM, GPRS, EDGE: 850, 900, 1800, 1900 MHz
CDMA 3GCDMA2000, EV-DO: 800, 1900 MHz
GSM 3G/3.5GUMTS, HSPA+: 850, 900, 1900 MHz
4G LTELTE: 2, 4, 5, 12, 13, 66 Bands
Wi-FiYes, Wi-Fi 5 (802.11ac)
BluetoothBluetooth 4.2  
Camera System
Camera SystemFront
5 MP Sensor
8 MP Sensor
Camera FlashYes
Video RecordingFront
1080p at up to 30 fps
1080p at up to 30 fps
Biometric AuthenticationFingerprint
SensorsAccelerometer, Fingerprint
BatteryInternal Lithium-Ion (3000.0 mAh)
Wireless ChargingNone
Dimensions (W x H x D)2.8 x 6.0 x 0.3" / 7.1 x 15.2 x 0.8 cm
Weight5.11 oz / 145 g
Packaging Info
Package Weight0.84 lb
Box Dimensions (LxWxH)8.7 x 6.7 x 2"
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what type of cable is best to use when charging ...

what type of cable is best to use when charging or data/transfer?
Asked by: Frank
Here are two recommended cables: ToughTested USB Type-A Male to Micro-USB Male Charge Cable (10') BH #TOTTCC10MCRO Case Logic Rugged Micro-USB Rope Cable (10', Black/Gray) BH #CACLMPCA1081
Answered by: Mark
Date published: 2019-12-13
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