Detailed comparison and review of LG K40 and Xiaomi POCO X3 Pro. With our comprehensive overview, you can simply compare sizes, functions, but also other key features of both phones and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the phone that best fits your needs and expectations.
| DESIGN AND DIMENSIONS | LG K40 | Xiaomi POCO X3 Pro |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | LM-X420EMW | - | |
| Form Factor | Touch | Touch | |
| Height | 153 mm | 165.3 mm | Xiaomi POCO X3 Pro has greater height than LG K40. |
| Width | 71.9 mm | 76.8 mm | Xiaomi POCO X3 Pro has greater width than LG K40. |
| Depth | 8.3 mm | 9.4 mm | LG K40 is narrower than LG K40. |
| Weight | 145 g | 215 g | LG K40 is lighter than LG K40. |
| Body Colour | New Aurora Black | Moroccan blue | Phantom black | Metallic bronze | Frost blue | |
| Protection | - | Splashproof | |
| Waterproof (Water-resistant) | - | - | |
| IP rating | - | IP53 | |
| SAR Value | 1.597 W/kg (body), 0.518 W/kg (head) | 0.899 W/kg (body), 0.573 W/kg (head), 1.898 W/kg (limb) | |
| Integrated Components | FM radio | - | |
| Connector Type | Headset jack - mini-phone 3.5mm Micro-USB - 5 pin Micro-USB Type B |
USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | - | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM | |
| SIM Card Configuration Details | - | Nano SIM + nano SIM/microSD |
| DISPLAY | LG K40 | Xiaomi POCO X3 Pro |
|---|
| Display Type | LCD display | - | |
|---|---|---|---|
| Display Technology | IPS | - | |
| Screen Size (Display Size) | 5.7" | 6.67" | Xiaomi POCO X3 Pro has larger screen size than LG K40. |
| Screen Resolution (Display Resolution) | 1440 x 720 pixels | 2400 x 1080 pixels | Xiaomi POCO X3 Pro has better screen resolution than LG K40. |
| Display Format | HD | Full HD+ | |
| Pixel Density | 282 ppi | 395 ppi | Xiaomi POCO X3 Pro has better pixel density than LG K40. |
| Aspect Ratio | 18:9 | 20:9 | |
| Max Brightness | - | 450 cd/m² | |
| Display Enhancement Technology | - | Sunlight mode | |
| Display Refresh Rate | - | 120 Hz | |
| Touch Sampling Rate | - | 240 Hz | |
| Display Features | Curved glass, FullVision display | Dot Display, Reading mode 3, DynamicSwitch refresh rate | |
| Display Protection (Screen Protector) | - | Corning Gorilla Glass 6 (scratch resistant glass) |
| PROCESSOR | LG K40 | Xiaomi POCO X3 Pro |
|---|
| Processor Type (CPU) | MediaTek | Qualcomm Snapdragon 860 | |
|---|---|---|---|
| Processor Number | MT6762 | - | |
| Clock Speed | 2 GHz | 2.96 GHz | Xiaomi POCO X3 Pro has higher clock speed than LG K40. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | - | LG K40 has 64-bit architecture. |
| Graphics System (GPU) | PowerVR GE8320 | Qualcomm ADRENO 640 |
| MEMORY | LG K40 | Xiaomi POCO X3 Pro |
|---|
| RAM | 2 GB | LPDDR4X SDRAM - 6 GB | Xiaomi POCO X3 Pro has more RAM than LG K40. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 128 GB | Xiaomi POCO X3 Pro has more internal memory than LG K40. |
| User Memory | 20.2 GB | - | |
| Memory Interface | - | UFS 3.1 | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 2 TB | microSDHC, microSD, microSDXC - up to 1 TB |
| CAMERA | LG K40 | Xiaomi POCO X3 Pro |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 4 | |
|---|---|---|---|
| Sensor Resolution | 16 Megapixel | 48 Megapixel | Xiaomi POCO X3 Pro has better camera resolution than LG K40. |
| Sensor Size | 1/3" | 1/2" | LG K40 has better camera sensor size than Xiaomi POCO X3 Pro. |
| Lens Aperture | F/2.0 | F/1.79 | Xiaomi POCO X3 Pro has better lens aperture than LG K40. |
| Pixel Size | 1 μm | 1.6 μm | Xiaomi POCO X3 Pro has larger camera pixel size than LG K40. |
| Focus Adjustment | Automatic | Automatic | |
| Camera Modes | - | Night mode, Dual video mode | |
| Light Source | 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, 3840 x 2160 (4K) at 30 fps | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF), GIF Creation, 8 different scenes | 4-in-1 to 1.6μm Super Pixel |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 8 Megapixel | |
|---|---|---|---|
| Lens Type (2nd Camera) | - | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | - | F/2.2 | |
| Field of View (2nd Camera) | - | 119 degree(s) |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Lens Aperture (3rd Camera) | - | F/2.4 | |
| Camera Functions (3rd Camera) | - | Macro camera | |
| Camera Features (3rd Camera) | - | FF (4cm) |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Lens Aperture (4th Camera) | - | F/2.4 | |
| Camera Functions (4th Camera) | - | Depth camera |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 8 Megapixel | 20 Megapixel | Xiaomi POCO X3 Pro has better front camera resolution than LG K40. |
| Sensor Size (Front) | 1/4" | - | |
| Lens Aperture (Front) | F/2.0 | F/2.2 | LG K40 has better front lens aperture than LG K40. |
| Pixel Size (Front) | 1.12 μm | 1.6 μm | Xiaomi POCO X3 Pro has larger front camera pixel size than LG K40. |
| Camera Modes (Front) | Portrait mode | Night mode, Dual video mode | |
| Light Source (Front) | LED flash | - | |
| Camera Features (Front) | - | 4-in-1 Super Pixel technology |
| BATTERY AND CHARGING | LG K40 | Xiaomi POCO X3 Pro |
|---|
| Battery Capacity (Battery Size) | 3000 mAh | 5160 mAh | Xiaomi POCO X3 Pro has larger battery capacity than LG K40. |
|---|---|---|---|
| Recharge Time (Charging Time) | - | 59 min | |
| Standby Time | 100 hours | - | |
| Talk Time | 480 minutes | - | |
| Run Time Details | Talk: up to 480 min Standby: up to 100 hrs |
Playback (video): up to 18 hrs Gaming: up to 11 hrs Playback (Music): up to 110 hrs |
|
| Battery Technology | Lithium Ion | - |
| CELLULAR | LG K40 | Xiaomi POCO X3 Pro |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 8.1 Oreo | - | |
| User Interface | - | MIUI 12 | |
| Intelligent Assistant | Google Assistant | - | |
| Payment Technology | - | Google Pay | |
| Navigation | GPS | GPS, A-GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | LG K40 | Xiaomi POCO X3 Pro |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | - | Band 1, Band 2, Band 4, Band 5, Band 8 | |
| 3G UMTS Frequency | - | 2100, 1900, 1700, 850, 900 | |
| 4G LTE Band | Band 1, Band 3, Band 7, Band 8, Band 20, Band 38 | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40, Band 41 | |
| 4G LTE Frequency | FDD 2100, FDD 1800+, FDD 2600, FDD 900, FDD 800 DD, TDD 2600 | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | Wi-Fi 5 | |
| Bluetooth | Bluetooth 5.0 LE | Bluetooth 5.0 | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | LG K40 | Xiaomi POCO X3 Pro |
|---|
| Supported Digital Audio Standards | WMA, AAC, PCM, MP3, FLAC, AAC +, eAAC+, OPUS, AMR-WB, AMR-NB, Vorbis | - | |
|---|---|---|---|
| Sound Enhancements | DTS: X 3D Premium Sound | Hi-Res audio |
| FEATURES | LG K40 | Xiaomi POCO X3 Pro |
|---|
| 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 | Ambient light sensor, proximity sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor, vibration motor | |
| Security Devices | Face recognition, fingerprint reader | Face recognition, fingerprint reader (side) | |
| Security Technology | - | AI face unlock | |
| Additional Phone Features | Google Lens, Google Assistant Key, AI Cam | Infrared remote control, MIMO technology, AI face unlock, AI Engine, LiquidCool Technology 1.0 Plus, MMT (Middle Middle Tab) technology, dual stereo speakers |
| OTHERS | LG K40 | Xiaomi POCO X3 Pro |
|---|
| Included Accessories | Power adapter | SIM card removal tool, USB-C cable, protective case, 33W charger | |
|---|---|---|---|
| Compliant Standards | MIL-STD 810G | IP53 |
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