In depth comparison and review of LG K40 and Xiaomi 12 Pro. 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.
| DESIGN AND DIMENSIONS | LG K40 | Xiaomi 12 Pro |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | LM-X420EMW | - | |
| Form Factor | Touch | Touch | |
| Height | 153 mm | 163.6 mm | Xiaomi 12 Pro has greater height than LG K40. |
| Width | 71.9 mm | 74.6 mm | Xiaomi 12 Pro has greater width than LG K40. |
| Depth | 8.3 mm | 8.16 mm | Xiaomi 12 Pro is narrower than LG K40. |
| Weight | 145 g | 205 g | LG K40 is lighter than LG K40. |
| Body Colour | New Aurora Black | Moroccan blue | Grey | |
| Waterproof (Water-resistant) | - | - | Xiaomi 12 Pro is waterproof. |
| SAR Value | 1.597 W/kg (body), 0.518 W/kg (head) | 0.599 W/kg (head), 0.998 W/kg (body), 1.987 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 | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | LG K40 | Xiaomi 12 Pro |
|---|
| Display Type | LCD display | OLED display | |
|---|---|---|---|
| Display Technology | IPS | AMOLED (LTPO) | |
| Screen Size (Display Size) | 5.7" | 6.73" | Xiaomi 12 Pro has larger screen size than LG K40. |
| Screen Resolution (Display Resolution) | 1440 x 720 pixels | 3200 x 1440 pixels | Xiaomi 12 Pro has better screen resolution than LG K40. |
| Display Format | HD | WQHD+ | |
| Pixel Density | 282 ppi | 522 ppi | Xiaomi 12 Pro has better pixel density than LG K40. |
| Aspect Ratio | 18:9 | 20:9 | |
| Max Brightness | - | 1500 cd/m² | |
| Colour Depth | - | 1.07 billion colours | |
| Contrast Ratio | - | 8000000:1 | |
| HDR | - | Yes | Xiaomi 12 Pro has HDR. |
| HDR Technology | - | HDR10+ | |
| Display Enhancement Technology | - | Dolby Vision, Sunlight mode | |
| Display Refresh Rate | - | 120 Hz | |
| Touch Sampling Rate | - | 480 Hz | |
| Display Features | Curved glass, FullVision display | Reading mode, Wide colour display (P3), Dot Display, True Colour, DisplayMate A+, 16000 levels auto brightness adjustment, AdaptiveSync Pro technology, Xiaomi SmartTouch | |
| Display Protection (Screen Protector) | - | Corning Gorilla Glass Victus (scratch resistant glass) |
| PROCESSOR | LG K40 | Xiaomi 12 Pro |
|---|
| Processor Type (CPU) | MediaTek | Qualcomm Snapdragon 8 Gen 1 | |
|---|---|---|---|
| Processor Number | MT6762 | SM8450 | |
| Clock Speed | 2 GHz | 3 GHz | Xiaomi 12 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 |
| MEMORY | LG K40 | Xiaomi 12 Pro |
|---|
| RAM | 2 GB | LPDDR5 SDRAM - 12 GB | Xiaomi 12 Pro has more RAM than LG K40. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 256 GB | Xiaomi 12 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 | - |
| CAMERA | LG K40 | Xiaomi 12 Pro |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 3 | |
|---|---|---|---|
| Sensor Resolution | 16 Megapixel | 50 Megapixel | Xiaomi 12 Pro has better camera resolution than LG K40. |
| Sensor Size | 1/3" | 1/1.28" | LG K40 has better camera sensor size than Xiaomi 12 Pro. |
| Sensor Name | - | Sony IMX707 Sensor | |
| Lens Type | - | Wide-angle lens | |
| Lens Aperture | F/2.0 | F/1.9 | Xiaomi 12 Pro has better lens aperture than LG K40. |
| Lens Construction | - | 7-element | |
| Pixel Size | 1 μm | 1.22 μm | Xiaomi 12 Pro has larger camera pixel size than LG K40. |
| Optical Image Stabiliser (OIS) | - | Optical Image Stabiliser (OIS) | Xiaomi 12 Pro has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects | - | HDR, Cinematic video filters, Moving crowd, Neon trails, Oil painting, Light painting, Starry sky, Star trails | |
| HDR Mode | - | Portrait HDR | |
| Camera Modes | - | Slow motion video, Pro mode, night mode, Slow Shutter, Documents, Vlog mode, Pro Video mode, Movie frame, Night portrait mode, photo filters, Timed burst, Photo clones, Video log mode, Dual video mode, Ultra Night Video, Magic Zoom, Time Freeze, Night Time-lapse, Parallel World, Freeze Frame Video, Pro Time-lapse, Long exposure mode, Ultra Night Photos, 50MP mode | |
| Face Recognition (Face ID) | - | Face recognition | Xiaomi 12 Pro has face detection. |
| 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, 3840 x 2160 (4K) at 60 fps, 7680 x 4320 (8K) at 24 fps | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF), GIF Creation, 8 different scenes | RAW image capture, HDR10+ recording, Google Lens, One-click AI cinema, Xiaomi ProFocus, 2.44μm 4-in-1 Super Pixel, AI distortion correction |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 50 Megapixel | |
|---|---|---|---|
| Lens Type (2nd Camera) | - | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | - | F/2.2 | |
| Field of View (2nd Camera) | - | 115 degree(s) |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 50 Megapixel | |
|---|---|---|---|
| Lens Type (3rd Camera) | - | Telephoto lens | |
| Lens Aperture (3rd Camera) | - | F/1.9 | |
| Lens Element Qty (3rd Camera) | - | 5-element | |
| Focal Length Equivalent to 35mm Camera | - | 48mm |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 8 Megapixel | 32 Megapixel | Xiaomi 12 Pro has better front camera resolution than LG K40. |
| Sensor Size (Front) | 1/4" | - | |
| Lens Aperture (Front) | F/2.0 | F/2.45 | LG K40 has better front lens aperture than LG K40. |
| Pixel Size (Front) | 1.12 μm | - | |
| Special Effects (Front) | - | HDR, Depth of field, Bokeh effect | |
| Camera Modes (Front) | Portrait mode | AI Beautify, Movie frame, Dual video mode, Selfie Night mode, Time-lapse selfie, AI portrait mode with bokeh and depth control, AI portrait video | |
| Light Source (Front) | LED flash | - | |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, Slo-mo video 1280 x 720 (720p) at 120 fps | |
| Camera Features (Front) | - | HDR10+ video recording |
| BATTERY AND CHARGING | LG K40 | Xiaomi 12 Pro |
|---|
| Battery Capacity (Battery Size) | 3000 mAh | 4600 mAh | Xiaomi 12 Pro has larger battery capacity than LG K40. |
|---|---|---|---|
| Fast Charging Technology | - | Xiaomi HyperCharge technology | Xiaomi 12 Pro has fast charging technology. |
| Recharge Time (Charging Time) | - | 18 min | |
| Wireless Charging | - | Yes | Xiaomi 12 Pro can be charged wirelessly. |
| Standby Time | 100 hours | - | |
| Talk Time | 480 minutes | 1140 minutes | Xiaomi 12 Pro has longer battery life when making calls than LG K40. |
| Run Time Details | Talk: up to 480 min Standby: up to 100 hrs |
Recording (video (1080p)): up to 5 hrs Navigation: up to 9 hrs Streaming (video): up to 15 hrs Talk: up to 1140 min |
|
| Battery Technology | Lithium Ion | - |
| CELLULAR | LG K40 | Xiaomi 12 Pro |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 5G | Xiaomi 12 Pro has more advanced generation mobile network. |
| Operating System | Android 8.1 Oreo | Android 12 | |
| User Interface | - | MIUI 13 | |
| Intelligent Assistant | Google Assistant | - | |
| Navigation | GPS | GPS, A-GPS, GLONASS, BeiDou, Galileo, NavIC |
| COMMUNICATIONS | LG K40 | Xiaomi 12 Pro |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | FDD-LTE, TDD-LTE, 5G NR FR1 | |
|---|---|---|---|
| 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 6, Band 8, Band 19 | |
| 3G UMTS Frequency | - | 2100, 1900, 1700, 850, 800, 900, 800 | |
| 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 12, Band 13, Band 17, Band 18, Band 19, Band 20, Band 25, Band 26, Band 28, Band 32, Band 38, Band 39, Band 40, Band 41, Band 42, Band 48, Band 66 | |
| 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 700a, FDD 700c, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 1900+, FDD 850+, FDD 700 APT, FDD 1500 L, TDD 2600, TDD 1900, TDD 2300, TDD 2500, TDD 3500, TDD 3600, FDD 1700 - 2110 AWS-3 | |
| 5G NR Band | - | N1, n3, n5, n7, n8, n20, n28, n38, n41, n66, n77, n78, n79, n40 | |
| 5G NR Frequency | - | FDD 2100, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 800, FDD 700APT, TDD TD 2600, TDD TD 2500, FDD AWS-3, TDD TD 3700, TDD TD 3500, TDD TD 4500, TDD 2300 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac/ax, Wi-Fi 6E | |
| Bluetooth | Bluetooth 5.0 LE | Bluetooth 5.2 | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Modem | - | Snapdragon X65 5G | |
| Messaging Services | SMS, MMS | - |
| MEDIA | LG K40 | Xiaomi 12 Pro |
|---|
| Supported Digital Audio Standards | WMA, AAC, PCM, MP3, FLAC, AAC +, eAAC+, OPUS, AMR-WB, AMR-NB, Vorbis | WAV, AAC, AMR, MP3, FLAC, OGG, APE (Monkey's Audio), LDAC, AWB, LHDC | |
|---|---|---|---|
| Supported Digital Video Standards | - | MKV, 3GP, WebM, MP4 | |
| Sound Enhancements | DTS: X 3D Premium Sound | Harman Kardon Sound technology, Dolby Atmos sound technology, Hi-Res audio certified | |
| Video Enhancements | - | HDR10 |
| FEATURES | LG K40 | Xiaomi 12 Pro |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | - | |
|---|---|---|---|
| Sensors | Ambient light sensor, proximity sensor | Accelerometer, proximity sensor, digital compass, barometer, flicker sensor, gyroscope, 360° ambient light sensor | |
| Security Devices | Face recognition, fingerprint reader | Fingerprint reader (under display), face recognition | |
| Security Technology | - | AI face unlock | |
| Additional Phone Features | Google Lens, Google Assistant Key, AI Cam | MIMO technology, MU-MIMO technology, LiquidCool Technology, linear motor, Reverse wireless charging, dual stereo speakers, X-axis linear vibration motor, IR blaster, Qualcomm 7th generation AI Engine, dual woofers, Xiaomi AdaptiveCharge |
| OTHERS | LG K40 | Xiaomi 12 Pro |
|---|
| Included Accessories | Power adapter | SIM card removal tool, USB-C cable, protective case, 120W charger | |
|---|---|---|---|
| Compliant Standards | MIL-STD 810G | SGS Eye Care Display Certification, SGS Seamless Pro 120Hz Certification |
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