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LG K4 2017 (M160) vs LG K40 (X420EM)

Side by side comparison between LG K4 (2017) vs LG K40 phones, differences, pros, cons with full specifications. What's the better?

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Compare LG K40 XLG K4 2017 (M160)05Points
LG K4 2017 (M160)
5"
IPS

480x854

5
MP

5mp

1GB
RAM

32bit Quad

2500
mAh

(Removable)

vs
LG K40 (X420EM)
5.7"
IPS

720x1440

16
MP

8mp

2GB
RAM

64bit Octa

3000
mAh

(Non removable)

What's the better phone? LG K40 (X420EM)

The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!

K4 2017 (M160)5 Advantages LG K4 2017 (M160)vsK40 (X420EM)24 Advantages LG K40 (X420EM)
+138 grams (4.83 ounces)5%
Lighter
vs145 grams (5.08 ounces)
+7.9 millimeters (0.31 inches)5%
Thinner
vs8.3 millimeters (0.33 inches)
+Li-Ion: Lithium-Ion (Removable)Advantage
Removable battery can be replaced easily
vsLi-Ion: Lithium-Ion (Non removable)
+FM (RDS)Advantage
The radio lets you listen to your songs and sports in general
vsNot supported
+Gorilla Glass 3Advantage
Protection against scratches on the screen lets you carry your phone with your keys
vsNot supported
1.1Ghz 32bit Quad-Corevs+2Ghz 64bit Octa-Core150%
More powerful processor, you can open your applications faster
1GB LPDDR3vs+2GB LPDDR3100%
More RAM memory. Typically more responsive and better for multitasking.
8GB (4GB available)vs+32GB (20GB available)4 times
More internal storage for applications and files
Until 32GB microSD, microSDXCvs+Until 1TB microSD, microSDXC31 times
More external storage for files using memory cards
480x854 pixelsvs+720x1440 pixels153%
Higher resolution screen
196 PPIvs+282 PPI44%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
5"vs+5.7"14%
Larger screen
(back) 5MPvs+(back) 16MP2 times
Higher resolution main camera
LED flashvs+LED flash on both camerasAdvantage
The LED flash on both cameras helps in dark places or in low light
f/2.6 (aperture)vs+f/2.0 (aperture)30%
Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
(front) 5MPvs+(front) 8MP63%
Higher resolution secondary camera to take pictures and selfies
HD (1280x720)vs+Full HD (1920x1080)125%
More image quality for recording videos with the primary camera
(front) HD (1280x720)vs+(front) Full HD (1920x1080)125%
More image quality for recording videos with the secondary camera
Android 6.0.1 Marshmallowvs+Android 8.1 OreoAdvantage
Android 8.1 Oreo is newer and safer
(4G LTE) 150 Mbpsvs+(4G+ LTE-A) 300 Mbps100%
Faster for surfing the internet and download files
Not supportedvs+Ambient Light sensorAdvantage
Sensors help you use the device
Not supportedvs+Fingerprint sensor (rear-mounted)Advantage
Sensors help you use the device
2500 mAhvs+3000 mAh20%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
Not supportedvs+Active noise cancellationAdvantage
Noise-canceling microphone allows better call quality
802.11 b/g/n (2.4Ghz)vs+802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMOAdvantage
WiFi 802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO is newer and faster
Not supportedvs+DLNAAdvantage
With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.
4.1 + A2DPvs+5.0 + A2DP/LEAdvantage
Bluetooth 5.0 + A2DP/LE is newer and faster
Not supportedvs+NFCAdvantage
NFC allows you to make payments by approach quickly and securely
Not supportedvs+MIL-STD-810G military certifiedAdvantage
Protection against water allows you talk to your friends in the rain, for example

18 Common items in both devices
TFT IPS LCD
16 million
Only digital zoom
Autofocus / PDAF: phase detection autofocus
EIS: Digital stabilization
HDR photo on both cameras
4G LTE / 4G+ LTE-A
+11 specs and more in the table below

Check the comparison table below for more items that are not evaluated in comparison score above.

Highlight differencesClear highlight
Physical featuresLG K4 2017 (M160)LG K40 (X420EM)
ModelK4 2017 (M160)K40 (X420EM)
Other model namesLG K4 M160 Single-Sim, LG-M160, LGM160LG K40 LMX420EM NFC Single-sim, LM-X420EM, LG-LMX420EM
Country or region available(Europe)
(Europe)
(Europe)
(Europe)
BrandLGLG
Release dateFebruary, 2017March, 2019
Depth7.9 millimeters (0.31 inches)8.3 millimeters (0.33 inches)
Size (width x height)72.6 x 144.7 millimeters (2.86 x 5.7 in)71.9 x 153 millimeters (2.83 x 6.02 in)
Weight138 grams (4.83 ounces)145 grams (5.08 ounces)
Qwerty physical keyboardNot supportedNot supported
AntennaInternal antennaInternal antenna
Build, materialsfeature not registeredPlastic body, glass front
Protection against water and othersNot supportedMIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant.
System (OS)LG K4 2017 (M160)LG K40 (X420EM)
Operating systemAndroid 6.0.1 MarshmallowAndroid 8.1 Oreo
Firmware updatefeature not registeredfeature not registered
HardwareLG K4 2017 (M160)LG K40 (X420EM)
Chipset32bit - Qualcomm Snapdragon 210 MSM8909 (28nm)64bit - MediaTek MT6762 Helio P22 (12nm)
CPU processor1.1Ghz Quad-Core ARM Cortex-A7Octa-Core, 2 processors:
2Ghz Quad-Core ARM Cortex-A53
1.5Ghz Quad-Core ARM Cortex-A53
GPU graphical controllerQualcomm Adreno 304PowerVR GE8320 650Mhz
RAM memory1GB LPDDR32GB LPDDR3
Internal storage8GB (4GB available)32GB (20GB available)
eMMC 5.1
External storageUntil 32GB microSD, microSDXC
(dedicated slot)
Until 1TB microSD, microSDXC
(dedicated slot)
DisplayLG K4 2017 (M160)LG K40 (X420EM)
Display typeTFT IPS LCDTFT IPS LCD
Screen size5" inches5.7" inches
Screen-to-body ratio~65.6% (screen-to-body ratio)~76.2% (screen-to-body ratio)
Display resolution480x854 pixels720x1440 pixels
TouchscreenCapacitive MultitouchCapacitive Multitouch
Pixel density (dot pitch)196 PPI282 PPI
Colors16 million16 million
Scratch-resistant glassGorilla Glass 3Not supported
Display featuresfeature not registeredfeature not registered
Mobile networksLG K4 2017 (M160)LG K40 (X420EM)
Dual-SIMNot supportedNot supported
SIM card1 slot (Single-SIM)
nano-SIM (4FF)
1 slot (Single-SIM)
nano-SIM (4FF)
Maximum download/upload150/50 Mbps300/50 Mbps
Network technology2G, 3G, 4G2G, 3G, 4G
Frequency, bandsExpand band detailsCollapse details
GSM Mhz bandQuad-Band 850/900/1800/1900Quad-Band 850/900/1800/1900
Primary 2G networkGSM 850/900/1800/1900GSM 850/900/1800/1900
Primary 3G networkUMTS 850/900/1900/2100UMTS 850/900/1900/2100
Primary 4G networkLTE Cat4 850/900/1800/2100/2600 (Bands 1,3,5,7,8)LTE Cat6 (Bands 1, 3, 5, 7, 8, 20)
TD-LTE (Bands 38)
Primary 5G networkNot supportedNot supported
Primary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTEGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
Secondary 2G networkNot supportedNot supported
Secondary 3G networkNot supportedNot supported
Secondary 4G networkNot supportedNot supported
Secondary data networkNot supportedNot supported
CallingLG K4 2017 (M160)LG K40 (X420EM)
MessagingSMS (T9), MMS, E-mail, Push mailSMS (T9), MMS, E-mail, Push mail
SpeakerphoneSupportedSupported
Video callingSupportedSupported
Call controlVoice dialing, Voice recorderVoice dialing, Voice recorder
CameraLG K4 2017 (M160)LG K40 (X420EM)
Back camera (main camera)5 megapixels16 megapixels
Main camera resolution2560x1920 pixels4608x3456 pixels
Video recording (primary)HD (1280x720) 30 fpsFull HD (1920x1080) 30 fps
FlashLED flashLED flash on both cameras
Focal aperturef/2.6 (aperture)f/2.0 (aperture)
Focal lengthfeature not registeredfeature not registered
Sensor sizefeature not registered1/3" inches
Pixel sizefeature not registered1µm pixel
AutofocusAutofocusPDAF: phase detection autofocus
Touch focusSupportedSupported
Image stabilizationEIS: Digital stabilizationEIS: Digital stabilization
ZoomOnly digital zoomOnly digital zoom
Face/smile detectionFace detection, Smile detectionFace detection, Smile detection
BSI sensorNot supportedNot supported
HDRHDR photo on both camerasHDR photo on both cameras
2ª cameraLG K4 2017 (M160)LG K40 (X420EM)
Front camera (secondary)5 megapixels8 megapixels
Front camera resolution2560x1920 pixels3264x2448 pixels
Video recording (secondary)HD (1280x720)Full HD (1920x1080)
Front flashNot supportedLED
Focal aperturef/2.7 (aperture)f/2.0 (aperture)
Focal lengthfeature not registeredfeature not registered
Sensor sizefeature not registeredfeature not registered
Pixel sizefeature not registeredfeature not registered
MultimediaLG K4 2017 (M160)LG K40 (X420EM)
RadioFM (RDS)Not supported
TVNot supportedNot supported
Video formatsMP4, H.264, H.263, XviD, MKVMP4, H.264, H.263, XviD, MKV
Audio formatsMP3, WAV, WMA, eAAC+MP3, WAV, WMA, eAAC+, FLAC
ConnectivityLG K4 2017 (M160)LG K40 (X420EM)
USBMicroUSB 2.0MicroUSB 2.0, USB OTG On-The-Go
TV outputNot supportedNot supported
Audio output3.5mm jack3.5mm jack
Bluetooth4.1 + A2DP5.0 + A2DP/LE
WiFi802.11 b/g/n (2.4Ghz)802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO
DLNANot supportedSupported
NFCNot supportedSupported
GPSA-GPS, GeoTagging, GLONASSA-GPS, GeoTagging
Infrared portNot supportedNot supported
Other functionsLG K4 2017 (M160)LG K40 (X420EM)
Active noise cancellationNot supportedSupported
Vibrating alertSupportedSupported
RingtonesPolyphonic and customizedPolyphonic and customized
Web browserHTML, XHTML, HTML5HTML, XHTML, HTML5
SensorsAccelerometer
Proximity sensor
Accelerometer
Proximity sensor
Ambient Light sensor
Fingerprint sensor (rear-mounted)
Other features- Colors: Black, Titan, Gold, Chocolate
- LG UX 5.0
- Knock Code, Knock On
- Quick Share, Quick Selfie
- WiFi direct, hotspot
- Colors: Black, Moroccan Blue, Platinum Gray
- 18:9 ratio FullVision display
- LED notification
- DTS-X Surround sound
- WiFi direct, hotspot
Power supplyLG K4 2017 (M160)LG K40 (X420EM)
BatteryLi-Ion: Lithium-Ion (Removable)Li-Ion: Lithium-Ion (Non removable)
Battery capacity2500 mAh3000 mAh
Charger, watts Standard charging Standard charging
Talk time autonomyfeature not registered480 minutes | 8 hours | 0.3 day
Standbyfeature not registered6000 minutes | 100 hours | 4.2 days
Radiation rateLG K4 2017 (M160)LG K40 (X420EM)
SAR 1.6W/kg (USA, Mexico, etc.)feature not registeredfeature not registered
SAR 2W/kg (Europe, UK, etc.)feature not registeredfeature not registered
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