Apple iPhone X vs. LG K40

Phone Comparison, Reviews and Tests

In depth comparison and review of Apple iPhone X and LG K40. Compare sizes, cameras, batteries, memory, and other important specifications and features to easily choose the right phone for you. Our goal is to help you uncover differences between the products and find the phone that will best fit your needs.

Phone Specifications Comparison

Apple iPhone X vs. LG K40 Comparison Chart
DESIGN AND DIMENSIONS Apple iPhone X LG K40
Product Type Smartphone Smartphone
Manufacturer Model Number A1901 LM-X420EMW
Form Factor Touch Touch
Height 143.6 mm 153 mm LG K40 has greater height than Apple iPhone X.
Width 70.9 mm 71.9 mm LG K40 has greater width than Apple iPhone X.
Depth 7.7 mm 8.3 mm Apple iPhone X is narrower than Apple iPhone X.
Weight 174 g 145 g LG K40 is lighter than Apple iPhone X.
Body Colour Space grey | Silver New Aurora Black | Moroccan blue
Body Material Glass, oleophobic coating, surgical‑grade stainless steel -
Protection Dustproof, splashproof, waterproof -
Waterproof (Water-resistant) Yes - Apple iPhone X is waterproof.
IP rating IEC 60529 IP67 -
Repairability Index 4.8 (out of 10) -
SAR Value 1.17 W/kg (body), 1.08 W/kg (head) 1.597 W/kg (body), 0.518 W/kg (head)
Integrated Components - FM radio
Connector Type Lightning Headset jack - mini-phone 3.5mm
Micro-USB - 5 pin Micro-USB Type B
SIM Card Type (Size) Nano SIM -
SIM Card Qty Single-SIM Dual-SIM
DISPLAY Apple iPhone X LG K40
Display Type OLED display LCD display
Display Technology Super Retina HD IPS
Screen Size (Display Size) 5.8" 5.7" Apple iPhone X has larger screen size than LG K40.
Screen Resolution (Display Resolution) 2436 x 1125 pixels 1440 x 720 pixels Apple iPhone X has better screen resolution than LG K40.
Display Format - HD
Pixel Density 458 ppi 282 ppi Apple iPhone X has better pixel density than LG K40.
Aspect Ratio - 18:9
Max Brightness 625 cd/m² -
Contrast Ratio 1000000:1 -
HDR Yes - Apple iPhone X has HDR.
HDR Technology HDR10 -
Display Enhancement Technology Dolby Vision -
Display Features True Tone display Curved glass, FullVision display
Display Protection (Screen Protector) Fingerprint-resistant oleophobic coating -
PROCESSOR Apple iPhone X LG K40
Processor Type (CPU) Apple A11 Bionic - with M11 motion MediaTek
Processor Number - MT6762
Clock Speed - 2 GHz
Processor Core Qty - 8-core
64-bit Architecture Yes Yes Both phones have 64-bit architecture.
Graphics System (GPU) - PowerVR GE8320
MEMORY Apple iPhone X LG K40
RAM - 2 GB
Internal Memory Size (Storage Capacity) 64 GB 32 GB Apple iPhone X has more internal memory than LG K40.
User Memory - 20.2 GB
Supported Flash Memory Cards (Expandable Memory) - microSDHC, microSDXC - up to 2 TB
CAMERA Apple iPhone X LG K40
MAIN CAMERA
Number of Main Cameras 2 1
Sensor Resolution 12 Megapixel 16 Megapixel LG K40 has better camera resolution than Apple iPhone X.
Sensor Size - 1/3"
Sensor Type BSI -
Lens Type Wide-angle lens -
Lens Aperture F/1.8 F/2.0 Apple iPhone X has better lens aperture than Apple iPhone X.
Lens Construction 6-element -
Pixel Size - 1 μm
Optical Image Stabiliser (OIS) Dual OIS (Optical Image Stabilisation) - Apple iPhone X has optical stabilisation.
Focus Adjustment Automatic Automatic
Digital Zoom 10x -
HDR Mode Auto HDR mode -
Camera Modes Burst mode, Panorama, Time-lapse mode, Timer mode, tap to focus, portrait mode, Portrait Lighting (beta), Live Photos, Live Photos with stabilisation -
Face Recognition (Face ID) Body and face detection - Apple iPhone X has face detection.
Light Source True Tone quad LED flash LED flash
Video Resolutions 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, Slo-mo video 1920 x 1080 (1080p) at 120 fps, 3840 x 2160 (4K) at 30 fps, 3840 x 2160 (4K) at 60 fps, 3840 x 2160 (4K) at 24 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps -
Camera Features (Functions) Sapphire crystal lens cover, Cinematic video stabilisation, Focus Pixels, Cinematic video stabilisation, Playback zoom, Hybrid IR filter, Exposure control, noise reduction, geotagging, Continuous Auto Focus (CAF) Phase Detect Auto-Focus (PDAF), GIF Creation, 8 different scenes
SECOND CAMERA
Sensor Resolution (2nd Camera) 12 Megapixel -
Lens Type (2nd Camera) Telephoto lens -
Lens Aperture (2nd Camera) F/2.4 -
Camera Functions (2nd Camera) Capture depth information -
FRONT CAMERA
Number of Front Cameras 2 1
Sensor Resolution (Front) 7 Megapixel 8 Megapixel LG K40 has better front camera resolution than Apple iPhone X.
Sensor Size (Front) - 1/4"
Sensor Type (Front) BSI -
Lens Aperture (Front) F/2.2 F/2.0 LG K40 has better front lens aperture than Apple iPhone X.
Pixel Size (Front) - 1.12 μm
HDR Mode (Front) Auto HDR mode -
Camera Modes (Front) Burst mode, Timer mode, portrait mode, Portrait Lighting (beta), Live Photos Portrait mode
Face Recognition (Face ID) Body and face detection, face recognition - Apple iPhone X has face detection.
Light Source (Front) Retina Flash LED flash
Video Resolutions (Front) 1920 x 1080 (1080p) -
Camera Features (Front) FaceTime HD camera, Exposure control, Auto image stabilisation, Animoji -
SECOND FRONT CAMERA
Camera Functions (2nd Front) Infrared camera for Face ID -
Camera Features (2nd Front) Flood Illuminator, Dot Projector -
BATTERY AND CHARGING Apple iPhone X LG K40
Battery Capacity (Battery Size) - 3000 mAh
Fast Charging Technology Apple fast charging technology - Apple iPhone X has fast charging technology.
Wireless Charging Yes - Apple iPhone X can be charged wirelessly.
Wireless Charging Standards Qi -
Standby Time - 100 hours
Talk Time 1260 minutes 480 minutes Apple iPhone X has longer battery life when making calls than LG K40.
Run Time Details Talk: up to 1260 min
Active online usage: up to 12 hrs
Playback (wireless video): up to 13 hrs
Playback (wireless audio): up to 60 hrs
Talk: up to 480 min
Standby: up to 100 hrs
Battery Technology Lithium Ion Lithium Ion
CELLULAR Apple iPhone X LG K40
Technology WCDMA (UMTS) / GSM WCDMA (UMTS) / GSM
Mobile Broadband Generation 4G 4G Both phones have the same mobile network generation.
Operating System iOS 11 Android 8.1 Oreo
Intelligent Assistant Siri Google Assistant
Payment Technology Apple Pay -
Navigation A-GPS, GLONASS, Galileo, QZSS GPS
COMMUNICATIONS Apple iPhone X LG K40
Data Transmission GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, DC-HSDPA, LTE Advanced, VoLTE, FDD-LTE, TDD-LTE, VoWiFi GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE
2G Band 850 GSM, 900 GSM, 1800 GSM, 1900 GSM 850 GSM, 900 GSM, 1800 GSM, 1900 GSM
4G LTE Band Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 17, Band 18, Band 19, Band 20, Band 25, Band 26, Band 28, Band 29, Band 30, Band 34, Band 38, Band 39, Band 40, Band 41, Band 66 Band 1, Band 3, Band 7, Band 8, Band 20, Band 38
4G LTE Frequency FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700c, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 1900+, FDD 850+, FDD 700 APT, FDD 700d, FDD 2300 WCS, TDD 2000, TDD 2600, TDD 1900, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 FDD 2100, FDD 1800+, FDD 2600, FDD 900, FDD 800 DD, TDD 2600
Wireless Interface IEEE 802.11ac IEEE 802.11a/b/g/n/ac
Bluetooth Bluetooth 5.0 Bluetooth 5.0 LE
NFC Yes Yes Both phones have an NFC reader for mobile payments.
Messaging Services SMS, MMS SMS, MMS
MEDIA Apple iPhone X LG K40
Supported Digital Audio Standards Audible, MP3, FLAC, Apple Lossless, AC-3, AAC-LC, LPCM, HE-AAC, Audible AAX, Audible AAX+, protected AAC, EAC3, HE-AAC v2 WMA, AAC, PCM, MP3, FLAC, AAC +, eAAC+, OPUS, AMR-WB, AMR-NB, Vorbis
Supported Digital Video Standards M-JPEG, H.264, HEVC, MPEG-4 Part 2, HEIF -
Sound Enhancements - DTS: X 3D Premium Sound
FEATURES Apple iPhone X LG K40
Phone Functions Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert
Sensors Accelerometer, ambient light sensor, proximity sensor, 3-axis gyro sensor, digital compass, barometer Ambient light sensor, proximity sensor
Security Devices Face recognition Face recognition, fingerprint reader
Security Technology Face ID -
Additional Phone Features Multitasking, FaceTime, AirPrint wireless printing, iCloud Photo Sharing, AirDrop function, MIMO technology, Wi-Fi Calling, iBeacon microlocation, CarPlay function, QuickType keyboard, Handoff, HomeKit, Apple TV support (2nd or later), Fast Charging, AirPlay 2 wireless streaming, M11 motion coprocessor, Neural Engine Google Lens, Google Assistant Key, AI Cam
OTHERS Apple iPhone X LG K40
Included Accessories Power adapter, Apple EarPods with Lightning Connector, Lightning to USB cable Power adapter
Compliant Standards IEC 60529 IP67, HAC (Hearing Aid Compatible) MIL-STD 810G
Max Operating Temperature 35 °C -
Min Operating Temperature 0 °C -
Humidity Range Operating 5 - 95% (non-condensing) -
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