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LG K40 X420HM vs Samsung Galaxy S9 SM-G960U

Comparison: side by side, pros and cons and the differences between LG K40 X420HM vs Samsung Galaxy S9 SM-G960U phones. Which is the best phone?

,
LG K40 X420HM
5.7"
IPS

720x1440

16
MP

8mp

2GB
RAM

64bit Octa

3000
mAh

(Non removable)

vs
Compare LG K40 X28Samsung Galaxy S9 SM-G960U
Samsung Galaxy S9 SM-G960U
5.8"
AMOLED

1440x2960

12.2
MP

8mp

4GB
RAM

64bit Octa

3000
mAh

(Non removable)

What's the best phone? The PhoneMore's choice is Samsung Galaxy S9 SM-G960U

The phonemore's choice is much more technical than personal, so don't just evaluate it. Our goal is to help, but what's important to us may not be important to you. You decide which is the best phone! Comment!


05 Advantages LG K40 X420HM
K40 X420HMvsGalaxy S9 SM-G960U
 9%9%
+Lighter
150 grams (5.25 ounces)vs163 grams (5.71 ounces)
 2%2%
+Thinner
8.3 millimeters (0.33 inches)vs8.5 millimeters (0.33 inches)
 31%31%
+Higher resolution main camera
(back) 16MPvs(back) 12.2MP
Advantage
+The LED flash on both cameras helps in dark places or in low light
LED flash on both camerasvsLED flash
Advantage
+Protection against water allows you talk to your friends in the rain, for example
MIL-STD-810G military certifiedvsIP68 certified

28 Advantages Samsung Galaxy S9 SM-G960U
Galaxy S9 SM-G960UvsK40 X420HM
 24%24%
+More powerful processor, you can open your applications faster
2.8Ghz 64bit Octa-Corevs2Ghz 64bit Octa-Core
 100%100%
+More RAM memory. Typically more responsive and better for multitasking
4GB LPDDR4Xvs2GB LPDDR3
 155%100%
+More internal storage for applications and files
64GB (51GB user available)vs32GB (20GB user available)
Advantage
+More resistant material
Aluminum frame, front/back glassvsPlastic body, front glass
Advantage
+This device has a Super AMOLED screen, which are brighter and more vivid
Super AMOLEDvsTFT LCD IPS
 3 times100%
+Higher resolution screen
1440x2960 pixelsvs720x1440 pixels
 101%100%
+Crisper display of text, images and video because it has more pixels per inch (ppi)
568 PPIvs282 PPI
 2%2%
+Larger screen
5.8"vs5.7"
Advantage
+You with less worry when taking pictures with auto focus
PDAF on back camera and autofocus front cameravsPDAF: phase detection autofocus
Advantage
+Image stabilization prevents blurry photos and helps in recording motion video
OIS: Optical stabilizationvsEIS: Digital stabilization
Advantage
+The BSI sensor allows the entry of more light generating photos with more detail and brightness
BSI sensorvsNot supported
 18%18%
+The larger sensor camera lets you take photos with better depth
1/2.55" inchesvs1/3" inches
 33%33%
+Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure
f/1.5 (aperture)vsf/2.0 (aperture)
 3 times100%
+More image quality for recording videos with the primary camera
4K UHD (3840x2160 pixels)vsFull HD (1920x1080 pixels)
 78%78%
+More image quality for recording videos with the secondary camera
2K UHD (2560x1440 pixels)vsFull HD (1920x1080 pixels)
Advantage
+Android 9.0 Pie is newer and safer
Android 9.0 PievsAndroid 8.1 Oreo
 3 times100%
+Faster for surfing the internet and download files
(4G+ LTE-A) 1200 Mbpsvs(4G+ LTE-A) 300 Mbps
Advantage
+Sensors help you use the device
CompassvsNot supported
Advantage
+Sensors help you use the device
GyroscopevsNot supported
Advantage
+Sensors help you use the device
BarometervsNot supported
Advantage
+Sensors help you use the device
Iris scannervsNot supported
Advantage
+Sensors help you use the device
Heart ratevsNot supported
Advantage
+Sensors help you use the device
SpO2vsNot supported
Advantage
+Sensors help you use the device
Face recognition (unlock)vsNot supported
Advantage
+With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device
DLNAvsNot supported
Advantage
+NFC allows you to make payments by approach quickly and securely
NFCvsNot supported
Advantage
+More speed data transfer as mp3 and photos via USB
USB 3.1 Type-C, USB OTG On-The-GovsMicroUSB 2.0, USB OTG On-The-Go
Advantage
+Protection against scratches on the screen lets you carry your phone with your keys
Gorilla Glass 5vsNot supported

24 Common items in both devices
Until 512GB microSD, microSDHC, microSDXC
16 million
Only digital zoom
HDR photo on both cameras / HDR photo/video on both cameras
(front) 8MP
4G+ LTE-A
Capacitive
Multitouch
3.5mm jack
Accelerometer
Proximity
Ambient Light
Fingerprint (rear-mounted)
3000 mAh
Li-Ion (Non removable)
Speakerphone
Video calling
Vibrating alert
Active noise cancellation
FM
A-GPS, GeoTagging / A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
802.11 a/b/g/n/ac + MIMO (2.4Ghz/5Ghz)
5.0 version A2DP/LE
HTML, XHTML, HTML5
+ COMMON ITEMS

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

Model and physical featuresLG K40 X420HMSamsung Galaxy S9 SM-G960U
BrandLGSamsung
ModelK40 X420HMGalaxy S9 SM-G960U
Also known asLG K40 LMX420HM, LM-X420HM, LG-LMX420HMUnlocked Galaxy S9 G960U (Snapdragon)
Country or region where it's soldLatin AmericaColombiaUSA
Release dateMarch, 2019February, 2018
Depth8.3 millimeters (0.33 inches)8.5 millimeters (0.33 inches)
Size (width x height)71.9 x 153 millimeters (2.83 x 6.02 in)68.7 x 147.7 millimeters (2.7 x 5.81 in)
Weight150 grams (5.25 ounces)163 grams (5.71 ounces)
Qwerty physical keyboardNot supportedNot supported
AntennaInternal antennaInternal antenna
Build, materialsPlastic body, front glassAluminum frame, front/back glass
Protection against water and othersMIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistantIP68 certified: dust proof and waterproof over 1.5 meter and 30min
Operating system (OS)LG K40 X420HMSamsung Galaxy S9 SM-G960U
Operating systemAndroid 8.1 OreoAndroid 8.0 Oreo
Firmware updatefeature not registeredAndroid 9.0 Pie
HardwareLG K40 X420HMSamsung Galaxy S9 SM-G960U
Architecture - Chipset64bit - MediaTek MT6762 Helio P22 (12nm)64bit - Qualcomm Snapdragon 845 MSM8998 (10nm)
CPU processor2Ghz Octa-Core ARM Cortex-A53Octa-Core, 2 processors:
2.8Ghz Quad-Core Kryo 385 Gold
1.7Ghz Quad-Core Kryo 385 Silver
GPU graphical controllerPowerVR GE8320 650MhzQualcomm Adreno 630
RAM memory2GB LPDDR34GB LPDDR4X
Internal storage32GB (20GB user available)
eMMC
64GB (51GB user available)
External storageUntil 512GB microSD, microSDHC, microSDXC
(dedicated slot)
Until 512GB microSD, microSDHC, microSDXC
(dedicated slot)
DisplayLG K40 X420HMSamsung Galaxy S9 SM-G960U
Display typeTFT LCD IPSSuper AMOLED
Screen size5.7" inches5.8" inches
Screen-to-body ratio~76.2% (screen-to-body ratio)~84.1% (screen-to-body ratio)
TouchscreenCapacitive MultitouchCapacitive Multitouch 10-points
Display resolution720x1440 pixels1440x2960 pixels
Pixel density (dot pitch)282 PPI568 PPI
Colors16 million16 million
Scratch-resistant glassNot supportedGorilla Glass 5
Mobile networks and dataLG K40 X420HMSamsung Galaxy S9 SM-G960U
Dual-SIMNot supportedNot supported
SIM card1 slot
nano-SIM (4FF)
1 slot
nano-SIM (4FF)
GSM Mhz bandQuad-Band 850/900/1800/1900Quad-Band 850/900/1800/1900
Primary 2G networkGSM 850/900/1800/1900CDMA 800/1900, GSM 850/900/1800/1900
Primary 3G networkUMTS 850/900/1700/1900/2100CDMA2000 1xEV-DO
TD-SCDMA 1900/2000
UMTS 850/900/1700/1900/2100
Primary 4G/5G networkLTE Cat6 (Bands 1, 2, 3, 4, 5, 7, 8, 12, 17, 28, 66)LTE Cat18 700/800/850/900/1700/1800/1900/2100/2300/2600 (Bands 1,2,3,4,5,7,8,12,18,19,20,28,29,30)
TD-LTE 1900/2300/2500/2600 (Bands 38,39,40,41)
Primary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE, LTE-AGPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, 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
Maximum download/upload300/50 Mbps1200/150 Mbps
Messaging and callingLG K40 X420HMSamsung Galaxy S9 SM-G960U
MessagingSMS (T9), MMS, E-mail, Push mailSMS (T9), MMS, E-mail, Push mail
SpeakerphoneSupportedSupported
Video callingSupportedSupported
Call controlVoice dialing, Voice recorderVoice dialing, Voice recorder, Voice commands
Primary / back cameraLG K40 X420HMSamsung Galaxy S9 SM-G960U
Main camera16 megapixels12.2 megapixels
Main camera resolution4608x3456 pixels4032x3024 pixels
Video recording (primary)Full HD (1920x1080 pixels) 30 fps4K UHD (3840x2160 pixels) 60 fps
FlashLED flash on both camerasLED flash
Focal aperturef/2.0 (aperture)f/1.5 (aperture)
Focal lengthfeature not registered26mm lens
Sensor size1/3" inches1/2.55" inches
Pixel size1µm pixel1.4µm pixel
AutofocusPDAF: phase detection autofocusPDAF on back camera and autofocus front camera
Touch focusSupportedSupported
Image stabilizationEIS: Digital stabilizationOIS: Optical stabilization
ZoomOnly digital zoomOnly digital zoom
Face/smile detectionFace detection, Smile detectionFace detection, Smile detection
BSI sensorNot supportedSupported
HDRHDR photo on both camerasHDR photo/video on both cameras
Front / secondary cameraLG K40 X420HMSamsung Galaxy S9 SM-G960U
Front camera8 megapixels8 megapixels
Front camera resolution3264x2448 pixels3264x2448 pixels
Video recording (secondary)Full HD (1920x1080 pixels)2K UHD (2560x1440 pixels)
Front flashLEDNot supported
Focal aperturef/2.0 (aperture)f/1.7 (aperture)
Focal lengthfeature not registered25mm lens
Sensor sizefeature not registered1/3.6" inches
Pixel sizefeature not registered1.22µm pixel
MultimediaLG K40 X420HMSamsung Galaxy S9 SM-G960U
RadioFMFM
TVNot supportedNot supported
Video formatsMP4, H.264, H.263, XviD, MKVMP4, H.265, H.264, H.263, DivX, XviD
Audio formatsMP3, WAV, WMA, eAAC+, FLACMP3, WAV, eAAC+, FLAC
Connectivity and interfacesLG K40 X420HMSamsung Galaxy S9 SM-G960U
USBMicroUSB 2.0, USB OTG On-The-GoUSB 3.1 Type-C, USB OTG On-The-Go
TV outputNot supportedNot supported
Audio output3.5mm jack3.5mm jack
Bluetooth5.0 version A2DP/LE5.0 version A2DP/LE
WiFi802.11 a/b/g/n/ac + MIMO (2.4Ghz/5Ghz)802.11 a/b/g/n/ac + MIMO (2.4Ghz/5Ghz)
DLNANot supportedSupported
NFCNot supportedSupported
GPSA-GPS, GeoTaggingA-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
Infrared portNot supportedNot supported
Other functionsLG K40 X420HMSamsung Galaxy S9 SM-G960U
Active noise cancellationSupportedSupported
Vibrating alertSupportedSupported
RingtonesPolyphonic and customizedPolyphonic and customized
Web browserHTML, XHTML, HTML5HTML, XHTML, HTML5
Java / Flash playerNot supportedNot supported
SensorsAccelerometer
Proximity
Ambient Light
Fingerprint (rear-mounted)
Accelerometer
Proximity
Compass
Ambient Light
Gyroscope
Barometer
Iris scanner
Heart rate
SpO2
Hall effect
Face recognition (unlock)
Fingerprint (rear-mounted)
Other features- Colors: Black, Moroccan Blue, Platinum Gray
- 18:9 ratio FullVision display
- LED notification
- DTS-X Surround sound
- WiFi direct, hotspot
- Colors: Black, Silver, Blue, Gold, Orchid Gray
- Samsung DeX
- Curved edge screen
- Corning Gorilla Glass 5 back panel
- Samsung Gear VR compatible
- Quick Charge 4.0
- Samsung Pay
- Dolby Atmos
- 32bit/384kHz audio
- WiFi direct, hotspot
Power supply and autonomyLG K40 X420HMSamsung Galaxy S9 SM-G960U
Battery technologyLi-Ion (Non removable)Li-Ion (Non removable)
Fast battery charging
Qi wireless charging (Qi/PMA)
Battery capacity3000 mAh3000 mAh
Battery model / charger (watts)feature not registeredfeature not registered
Talk time480 minutes | 8 hours | 0.3 dayfeature not registered
Standby6000 minutes | 100 hours | 4.2 daysfeature not registered
Specific absorption rate (radiation)LG K40 X420HMSamsung Galaxy S9 SM-G960U
SAR USA, Mexico, Colombiafeature not registered0.63 W/Kg (head) | 1.59 W/Kg (body)
SAR European Union, UKfeature not registeredfeature not registered