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LG K40 (X420ZM) vs Asus ROG Phone 2 (128GB)

Side by side comparison between LG K40 vs Asus ROG Phone 2 phones, differences, pros, cons and full specifications. What's the better?

,
5.7"
IPS

720x1440

16
MP

8mp

2GB
RAM

Octa-core

3000
mAh

(Non removable)

vs
27Points Asus ROG Phone 2 (128GB) Compare LG K40 X
6.59"
AMOLED

1080x2340

48
MP

24mp

8GB
RAM

Octa-core

6000
mAh

(Non removable)

What's the better phone? Asus ROG Phone 2 (128GB)

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!

K40 (X420ZM)} 6 Advantages LG K40 (X420ZM) vs ROG Phone 2 (128GB)} 27 Advantages Asus ROG Phone 2 (128GB)
+Until 1TB microSD, microSDXCAdvantage
More external storage for files using memory cards
vsNot supported
+150 grams (5.25 ounces)60%
Lighter
vs240 grams (8.4 ounces)
+8.3 millimeters (0.33 inches)18%
Thinner
vs9.78 millimeters (0.39 inches)
+LED flash on both camerasAdvantage
The LED flash on both cameras helps in dark places or in low light
vsDual-LED flash
+FMAdvantage
The radio lets you listen to your songs and sports in general
vsNot supported
+MIL-STD-810G military certifiedAdvantage
Protection against water allows you talk to your friends in the rain, for example
vsNot supported
2GHz 64bit Octa-core (12nm)vs+2.96GHz 64bit Octa-core (7nm)51%
More powerful processor, you can open your applications faster
2GB LPDDR3vs+8GB LPDDR4X3 times
More RAM memory. Typically more responsive and better for multitasking.
32GB (20GB available)vs+128GB (107GB available)4 times
More internal storage for applications and files
eMMC 5.1vs+UFS 3.0Advantage
Fastest write and read storage.
Plastic body, glass frontvs+Aluminum frame, glass front/backAdvantage
More resistant material
TFT IPS LCDvs+AMOLEDAdvantage
AMOLED display is brighter and more vivid
16 millionvs+1 billion62 times
More colors on the screen is better quality images and videos
720x1440 pixelsvs+1080x2340 pixels144%
Higher resolution screen
282 PPIvs+391 PPI39%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
5.7"vs+6.59"16%
Larger screen
(back) 16MPvs+(dual camera) 48MP + 13MP3 times
Higher resolution main camera
1/3" inchesvs+1/2" inches50%
The larger sensor camera lets you take photos with better depth.
f/2.0 (aperture)vs+f/1.8 (aperture)11%
Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
(front) 8MPvs+(front) 24MP198%
Higher resolution secondary camera to take pictures and selfies
Full HD (1920x1080)vs+4K UHD (3840x2160)3 times
More image quality for recording videos with the primary camera
Android 8.1 Oreovs+Android 11Advantage
Android 11 is newer and safer
(4G LTE-A) 300 Mbpsvs+(4G LTE-A) 1200 Mbps3 times
Faster for surfing the internet and download files
Not supportedvs+CompassAdvantage
Sensors help you use the device
Not supportedvs+Face unlockAdvantage
Sensors help you use the device
Not supportedvs+GyroscopeAdvantage
Sensors help you use the device
3000 mAhvs+6000 mAh100%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
1 slot (Single-SIM)
(dedicated slot)
vs+2 slots (Dual-SIM)Advantage
You can have more mobile carriers/operators on the same device.
802.11 a/b/g/n/ac [wifi5]vs+802.11 a/b/g/n/ac/ad [wifi5/ad]Advantage
WiFi 802.11 a/b/g/n/ac/ad [wifi5/ad] is newer and faster
Not supportedvs+NFCAdvantage
NFC allows you to make payments by approach quickly and securely
MicroUSB 2.0, USB OTG On-The-Govs+USB 3.1 Type-C reversible connectorAdvantage
Newer and faster USB version for transferring photos, mp3 or data.
MicroUSB 2.0, USB OTG On-The-Govs+Type-CAdvantage
Reversible connector, you can stick in a USB-C cable any which way; either side is up.
Not supportedvs+Gorilla Glass 6Advantage
Protection against scratches on the screen lets you carry your phone with your keys

17 Common items in both devices
Only digital zoom
PDAF: phase detection autofocus / LDAF/PDAF: laser/phase detection autofocus
EIS: Digital stabilization
HDR photo on both cameras
(front) Full HD (1920x1080)
4G LTE-A
Capacitive
+10 specs and more in the table below

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

Highlight differences Clear highlight

📱 Model features

LG K40 (X420ZM)Asus ROG Phone 2 (128GB)
ModelK40 (X420ZM)ROG Phone 2 (128GB)
Other model namesLG K40 LMX420ZM, LM-X420ZM, LG-LMX420ZMAsus ROG Phone II ZS660KL (128GB + 8GB RAM)
Country or region availableSouth Africa
South Africa
(Global, International)
(Global, International)
BrandLGAsus
Release date3/31/20198/1/2019, Announced: 7/22/2019
Depth8.3 millimeters (0.33 inches)9.78 millimeters (0.39 inches)
Size (width x height)71.9 x 153 millimeters (2.83 x 6.02 in)77.6 x 170.99 millimeters (3.06 x 6.73 in)
Weight150 grams (5.25 ounces)240 grams (8.4 ounces)
Build, materialsPlastic body, glass frontAluminum frame, glass front/back
Back: Gorilla Glass 3
Protection against water and othersMIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant.Not supported

📲 Display

LG K40 (X420ZM)Asus ROG Phone 2 (128GB)
Display typeTFT IPS LCDAMOLED
Screen size5.7" inches6.59" inches
Screen-to-body ratio~76.2% (screen-to-body ratio)~80.3% (screen-to-body ratio)
Display resolution720x1440 pixels1080x2340 pixels (19.5:9)
TouchscreenCapacitive MultitouchCapacitive Multitouch 10-points
Pixel density (dot pitch)282 PPI391 PPI
Colors16 million1 billion
Scratch-resistant glassNot supportedGorilla Glass 6
Refresh ratefeature not registered120Hz
Display featuresfeature not registered600nits[typ]
HDR10
108% DCI-P3
1ms response

🤖 Operating System

LG K40 (X420ZM)Asus ROG Phone 2 (128GB)
System versionAndroid 8.1 OreoAndroid 9.0 Pie
Firmware updatefeature not registeredAndroid 11
User Interfacefeature not registeredROG UI

⚙️ Processor

LG K40 (X420ZM)Asus ROG Phone 2 (128GB)
Chipset64bit: MediaTek Helio P22 (MT6762) (12nm)64bit: Qualcomm Snapdragon 855+ (SM8150-AC) (7nm)
CPUOcta-core, 2 processors:
4x 2GHz ARM Cortex-A53 (Quad-core)
4x 1.5GHz ARM Cortex-A53 (Quad-core)
Octa-core, 3 processors:
1x 2.96GHz Kryo 485 (Single-core)
3x 2.42GHz Kryo 485 (Triple-core)
4x 1.8GHz Kryo 485 (Quad-core)
GPU graphical controllerPowerVR GE8320 (650MHz)Qualcomm Adreno 640 (672MHz)
Performance (benchmark)feature not registeredAnTuTu: 398936 (v7), 483248 (v8)
Geekbench: 10923 (v4.4)
GFXBench: 40fps (ES 3.1 onscreen)

💽 Memory and storage

LG K40 (X420ZM)Asus ROG Phone 2 (128GB)
RAM memory2GB LPDDR38GB LPDDR4X
Internal storage32GB (20GB available)
eMMC 5.1
128GB (107GB available)
UFS 3.0
External storageUntil 1TB microSD, microSDXC
(dedicated slot)
Not supported

📶 Mobile networks

LG K40 (X420ZM)Asus ROG Phone 2 (128GB)
Dual-SIMNot supportedDual-SIM Standby - Call active on one sim card
SIM card1 slot (Single-SIM)
nano-SIM (4FF)
2 slots (Dual-SIM)
nano-SIM (4FF)
Maximum Download / Upload300/50 Mbps1200/150 Mbps
Network technology2G, 3G, 4G2G, 3G, 4G
Frequency, bands Expand band details Collapse 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 Cat6 (Bands 1, 3, 5, 7, 8, 20)
TD-LTE (Bands 38, 40)
LTE Cat18 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 28, 29, 32, 34)
TD-LTE (38, 39, 40, 41, 46)
Primary 5G networkNot supportedNot supported
Primary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-AGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
Secondary 2G networkNot supportedGSM 850/900/1800/1900
Secondary 3G networkNot supportedUMTS 850/900/1900/2100
Secondary 4G networkNot supportedLTE Cat18 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 28, 29, 32, 34)
TD-LTE (38, 39, 40, 41, 46)
Secondary data networkNot supportedGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A

📷 Camera

LG K40 (X420ZM)Asus ROG Phone 2 (128GB)
Back camera (main camera)16 megapixels(dual camera)
48 megapixels
13MP ultrawide f/2.411mm125°
Main camera resolution4608x3456 pixels8000x6000 pixels
Video recording (primary)Full HD (1920x1080) 30 fps4K UHD (3840x2160) 60 fps
FlashLED flash on both camerasDual-LED flash
Focal aperturef/2.0 (aperture)f/1.8 (aperture)
Focal lengthfeature not registered26mm lens
Sensor size1/3" inches1/2" inches
Pixel size1µm pixel0.8µm pixel
AutofocusPDAF: phase detection autofocusLDAF/PDAF: laser/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 supportedSupported
HDRHDR photo on both camerasHDR photo on both cameras
Camera extrasfeature not registered4K@30/60fps
1080p@30/60
1080p@240fps (slow motion)
720p@480fps (slow motion)
Sony IMX586 sensor

📸 Front camera

LG K40 (X420ZM)Asus ROG Phone 2 (128GB)
Front camera (secondary)8 megapixels24 megapixels
Front camera resolution3264x2448 pixels5632x4224 pixels
Video recording (secondary)Full HD (1920x1080)Full HD (1920x1080)
Front flashLEDNot supported
Focal aperturef/2.0 (aperture)f/2.2 (aperture)
Focal lengthfeature not registeredfeature not registered
Sensor sizefeature not registeredfeature not registered
Pixel sizefeature not registered0.9µm pixel

🔉 Sound and multimedia

LG K40 (X420ZM)Asus ROG Phone 2 (128GB)
LoudspeakerSupportedStereo sound with dual speakers
24-bit/192kHz
DTS:X
Active noise cancellation2 microphones or more2 microphones or more
RadioFMNot supported
TVNot supportedNot supported
Video formatsMP4, H.264, H.263, XviD, MKVMP4, H.265, H.264, H.263, XviD
Audio formatsMP3, WAV, WMA, eAAC+, FLACMP3, WAV, WMA, eAAC+, FLAC

🔌 Connectivity

LG K40 (X420ZM)Asus ROG Phone 2 (128GB)
USBMicroUSB 2.0, USB OTG On-The-GoUSB 3.1 Type-C reversible connector
Audio output3.5mm jack3.5mm jack
TV outputNot supportedUSB Type-C (reversible)
Bluetooth5.0 + A2DP/LE5.0 + A2DP/LE
WiFi802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO
WiFi Direct, hotspot
802.11 a/b/g/n/ac/ad [wifi5/ad] (2.4GHz, 5GHz, 60GHz) + MIMO
WiFi Direct, hotspot
DLNANot supportedNot supported
GPSA-GPS, GeoTaggingA-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS
NFCNot supportedSupported
Infrared portNot supportedNot supported

🧭 Sensors

LG K40 (X420ZM)Asus ROG Phone 2 (128GB)
SensorsAccelerometer
Ambient light sensor
Fingerprint sensor (rear-mounted)
Proximity sensor
Accelerometer
Ambient light sensor
Compass
Face unlock
Fingerprint sensor (under display)
Gyroscope
Hall effect
Proximity sensor
Vibrating alertSupportedSupported

🔋 Battery

LG K40 (X420ZM)Asus ROG Phone 2 (128GB)
Battery typeLi-Ion: lithium-ion (Non removable)LiPo: li-ion polymer (Non removable)
Battery capacity3000 mAh6000 mAh
Charger, wattsWired charging30W (10V/3A) Wired fast charging
10W Reverse charging by cable
Quick Charge 4
Inductive / wireless chargingfeature not registeredNot supported
Talk time autonomy8 hoursfeature not registered
Standby100 hours (4.2 days)feature not registered

➕ Other features

LG K40 (X420ZM)Asus ROG Phone 2 (128GB)
Call controlVoice dialing, Voice recorderVoice dialing, Voice recorder, Voice commands
MessagingSMS (T9), MMS, E-mail, Push mailSMS (T9), MMS, E-mail, Push mail
Hands-free callingSupportedSupported
Video callingSupportedSupported
RingtonesPolyphonic and customizedPolyphonic and customized
Web browserHTML, XHTML, HTML5HTML, XHTML, HTML5
AntennaInternal antennaInternal antenna
Qwerty physical keyboardNot supportedNot supported
Miscellaneous• Colors: Black, Moroccan Blue, Platinum Gray
• 18:9 ratio FullVision display
• LED notification
• DTS-X Surround sound
• Colors: Black

☢️ Radiation rate

LG K40 (X420ZM)Asus ROG Phone 2 (128GB)
SAR 1.6W/kg (USA, Mexico, etc.)feature not registeredfeature not registered
SAR 2W/kg (Europe, UK, etc.)feature not registeredfeature not registered
X

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