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LG K40 (X420EMW) All specs

Full specifications phone: LG K40 (X420EMW) specs, detailed technical information, features, price and review. All about this phone.

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LG K40

The LG K40 (X420EMW) is a good Android phone with 2Ghz Octa-Core processor that allows run games and heavy applications.

An advantage of the LG K40 (X420EMW) is the possibility of using two mobile carriers, a Dual-SIM device with two SIM card slots.

Great connectivity of this device includes Bluetooth 5.0 + A2DP/LE, WiFi 802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO and NFC to make mobile payments or connection to other devices.

Including the battery, the LG K40 (X420EMW) phone has 145 grams and it's a very thin device, only 8.3mm.

4.7/10
Physical featuresLG K40
Model
Other model namesLG K40 LMX420EMW NFC Dual-sim, LM-X420EMW, LG-LMX420EMW
Country or region available(Global, International)(Europe)
(Global, International), (Europe)
BrandLG
Release dateMarch, 2019
Depth8.3 millimeters (0.33 inches)
Size (width x height)71.9 x 153 millimeters (2.83 x 6.02 in)
Weight145 grams (5.08 ounces)
Qwerty physical keyboardNot supported
AntennaInternal antenna
Build, materialsPlastic body, glass front
Protection against water and othersMIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant.
System (OS)LG K40
Operating systemAndroid 8.1 Oreo
Firmware updatefeature not registered
HardwareLG K40
Chipset64bit - MediaTek MT6762 Helio P22 (12nm)
CPU processorOcta-Core, 2 processors:
2Ghz Quad-Core ARM Cortex-A53
1.5Ghz Quad-Core ARM Cortex-A53
GPU graphical controllerPowerVR GE8320 650Mhz
RAM memory2GB LPDDR3
Internal storage32GB (20GB available)
eMMC 5.1
External storageUntil 1TB microSD, microSDXC
(dedicated slot)
DisplayLG K40
Display typeTFT IPS LCD
Screen size5.7" inches
Screen-to-body ratio~76.2% (screen-to-body ratio)
Display resolution720x1440 pixels
TouchscreenCapacitive Multitouch
Pixel density (dot pitch)282 PPI
Colors16 million
Scratch-resistant glassNot supported
Display featuresfeature not registered
Mobile networksLG K40
Dual-SIMDual-SIM Standby - Call active on one sim card
(dedicated slot)
SIM card2 slots (Dual-SIM)
nano-SIM (4FF)
Maximum download/upload300/50 Mbps
Network technology2G, 3G, 4G
Frequency, bandsExpand band detailsCollapse details
GSM Mhz bandQuad-Band 850/900/1800/1900
Primary 2G networkGSM 850/900/1800/1900
Primary 3G networkUMTS 850/900/1900/2100
Primary 4G networkLTE Cat6 (Bands 1, 3, 5, 7, 8, 20)
TD-LTE (Bands 38)
Primary 5G networkNot supported
Primary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
Secondary 2G networkGSM 850/900/1800/1900
Secondary 3G networkNot supported
Secondary 4G networkNot supported
Secondary data networkGPRS, EDGE
CallingLG K40
MessagingSMS (T9), MMS, E-mail, Push mail
SpeakerphoneSupported
Video callingSupported
Call controlVoice dialing, Voice recorder
CameraLG K40
Back camera (main camera)16 megapixels
Main camera resolution4608x3456 pixels
Video recording (primary)Full HD (1920x1080) 30 fps
FlashLED flash on both cameras
Focal aperturef/2.0 (aperture)
Focal lengthfeature not registered
Sensor size1/3" inches
Pixel size1µm pixel
AutofocusPDAF: phase detection autofocus
Touch focusSupported
Image stabilizationEIS: Digital stabilization
ZoomOnly digital zoom
Face/smile detectionFace detection, Smile detection
BSI sensorNot supported
HDRHDR photo on both cameras
2ª cameraLG K40
Front camera (secondary)8 megapixels
Front camera resolution3264x2448 pixels
Video recording (secondary)Full HD (1920x1080)
Front flashLED
Focal aperturef/2.0 (aperture)
Focal lengthfeature not registered
Sensor sizefeature not registered
Pixel sizefeature not registered
MultimediaLG K40
RadioNot supported
TVNot supported
Video formatsMP4, H.264, H.263, XviD, MKV
Audio formatsMP3, WAV, WMA, eAAC+, FLAC
ConnectivityLG K40
USBMicroUSB 2.0, USB OTG On-The-Go
TV outputNot supported
Audio output3.5mm jack
Bluetooth5.0 + A2DP/LE
WiFi802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO
DLNASupported
NFCSupported
GPSA-GPS, GeoTagging
Infrared portNot supported
Other functionsLG K40
Active noise cancellationSupported
Vibrating alertSupported
RingtonesPolyphonic and customized
Web browserHTML, XHTML, HTML5
SensorsAccelerometer
Proximity sensor
Ambient Light sensor
Fingerprint sensor (rear-mounted)
Other features- Colors: Black, Moroccan Blue, Platinum Gray
- 18:9 ratio FullVision display
- LED notification
- DTS-X Surround sound
- WiFi direct, hotspot
Power supplyLG K40
BatteryLi-Ion: Lithium-Ion (Non removable)
Battery capacity3000 mAh
Charger, watts Standard charging
Talk time autonomy480 minutes | 8 hours | 0.3 day
Standby6000 minutes | 100 hours | 4.2 days
Radiation rateLG K40
SAR 1.6W/kg (USA, Mexico, etc.)feature not registered
SAR 2W/kg (Europe, UK, etc.)feature not registered
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