Detailed comparison and review of LG K40 and Xiaomi Redmi Note 12. 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 Redmi Note 12 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | LM-X420EMW | - | |
| Form Factor | Touch | Touch | |
| Height | 153 mm | 165.66 mm | Xiaomi Redmi Note 12 has greater height than LG K40. |
| Width | 71.9 mm | 75.96 mm | Xiaomi Redmi Note 12 has greater width than LG K40. |
| Depth | 8.3 mm | 7.85 mm | Xiaomi Redmi Note 12 is narrower than LG K40. |
| Weight | 145 g | 183.5 g | LG K40 is lighter than LG K40. |
| Body Colour | New Aurora Black | Moroccan blue | Ice blue | Onyx grey | Mint green | |
| Protection | - | Dustproof, splashproof | |
| Waterproof (Water-resistant) | - | - | Xiaomi Redmi Note 12 is waterproof. |
| IP rating | - | IP53 | |
| Repairability Index | - | 7.5 (out of 10) | |
| SAR Value | 1.597 W/kg (body), 0.518 W/kg (head) | 2.55 W/kg (limb), 0.9 W/kg (head), 0.995 W/kg (body) | |
| 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 Qty | Dual-SIM | Dual-SIM |
| DISPLAY | LG K40 | Xiaomi Redmi Note 12 |
|---|
| Display Type | LCD display | OLED display | |
|---|---|---|---|
| Display Technology | IPS | AMOLED | |
| Screen Size (Display Size) | 5.7" | 6.67" | Xiaomi Redmi Note 12 has larger screen size than LG K40. |
| Screen Resolution (Display Resolution) | 1440 x 720 pixels | 2400 x 1080 pixels | Xiaomi Redmi Note 12 has better screen resolution than LG K40. |
| Display Format | HD | Full HD+ | |
| Pixel Density | 282 ppi | 395 ppi | Xiaomi Redmi Note 12 has better pixel density than LG K40. |
| Aspect Ratio | 18:9 | - | |
| Max Brightness | - | 1200 cd/m² | |
| Contrast Ratio | - | 4500000:1 | |
| Display Refresh Rate | - | 120 Hz | |
| Touch Sampling Rate | - | 240 Hz | |
| Display Features | Curved glass, FullVision display | Sunlight Display, Reading mode, DCI-P3 Wide colour gamut, DotDisplay, E2 Pro |
| PROCESSOR | LG K40 | Xiaomi Redmi Note 12 |
|---|
| Processor Type (CPU) | MediaTek | Qualcomm Snapdragon 685 | |
|---|---|---|---|
| Processor Number | MT6762 | - | |
| Clock Speed | 2 GHz | 2.8 GHz | Xiaomi Redmi Note 12 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 610 |
| MEMORY | LG K40 | Xiaomi Redmi Note 12 |
|---|
| RAM | 2 GB | LPDDR4X SDRAM - 4 GB | Xiaomi Redmi Note 12 has more RAM than LG K40. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 128 GB | Xiaomi Redmi Note 12 has more internal memory than LG K40. |
| User Memory | 20.2 GB | - | |
| Memory Interface | - | UFS 2.2 | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 2 TB | microSDHC, microSD, microSDXC - up to 1 TB |
| CAMERA | LG K40 | Xiaomi Redmi Note 12 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 3 | |
|---|---|---|---|
| Sensor Resolution | 16 Megapixel | 50 Megapixel | Xiaomi Redmi Note 12 has better camera resolution than LG K40. |
| Sensor Size | 1/3" | 1/2.76" | LG K40 has better camera sensor size than Xiaomi Redmi Note 12. |
| Sensor Name | - | Samsung ISOCELL JN1 | |
| Lens Aperture | F/2.0 | F/1.8 | Xiaomi Redmi Note 12 has better lens aperture than LG K40. |
| Lens Construction | - | 5-element | |
| Pixel Size | 1 μm | 0.64 μm | LG K40 has larger camera pixel size than Xiaomi Redmi Note 12. |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects | - | Bokeh effect | |
| Camera Modes | - | Portrait mode | |
| Light Source | LED flash | LED flash | |
| Video Resolutions | - | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF), GIF Creation, 8 different scenes | 4-in-1 to 1.28μm pixel |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 8 Megapixel | |
|---|---|---|---|
| Sensor Size (2nd Camera) | - | 1/4" | |
| Sensor Name (2nd Camera) | - | Omnivision OV08D sensor | |
| Lens Type (2nd Camera) | - | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | - | F/2.2 | |
| Lens Element Qty (2nd Camera) | - | 5-element | |
| Field of View (2nd Camera) | - | 120 degree(s) | |
| Pixel Size (2nd Camera) | - | 1.12 μm |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Lens Aperture (3rd Camera) | - | F/2.4 | |
| Lens Element Qty (3rd Camera) | - | 3-element | |
| Camera Functions (3rd Camera) | - | Macro camera |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 8 Megapixel | 13 Megapixel | Xiaomi Redmi Note 12 has better front camera resolution than LG K40. |
| Sensor Size (Front) | 1/4" | 1/3.0" | LG K40 has better front camera sensor size than Xiaomi Redmi Note 12. |
| Lens Aperture (Front) | F/2.0 | F/2.45 | LG K40 has better front lens aperture than LG K40. |
| Lens Element Qty (Front) | - | 5-element | |
| Pixel Size (Front) | 1.12 μm | - | |
| Camera Modes (Front) | Portrait mode | - | |
| Light Source (Front) | LED flash | - | |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps |
| BATTERY AND CHARGING | LG K40 | Xiaomi Redmi Note 12 |
|---|
| Battery Capacity (Battery Size) | 3000 mAh | 5000 mAh | Xiaomi Redmi Note 12 has larger battery capacity than LG K40. |
|---|---|---|---|
| Fast Charging Technology | - | Mi-FC fast charging technology | Xiaomi Redmi Note 12 has fast charging technology. |
| Standby Time | 100 hours | - | |
| Talk Time | 480 minutes | 1860 minutes | Xiaomi Redmi Note 12 has longer battery life when making calls than LG K40. |
| Run Time Details | Talk: up to 480 min Standby: up to 100 hrs |
Talk: up to 1860 min Gaming: up to 9 hrs Playback (video): up to 21 hrs |
|
| Battery Technology | Lithium Ion | - |
| CELLULAR | LG K40 | Xiaomi Redmi Note 12 |
|---|
| 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 | Android 13 | |
| User Interface | - | MIUI 14 | |
| Intelligent Assistant | Google Assistant | - | |
| Navigation | GPS | GPS, GLONASS, Galileo |
| COMMUNICATIONS | LG K40 | Xiaomi Redmi Note 12 |
|---|
| 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 5, Band 8 | |
| 3G UMTS Frequency | - | 2100, 850, 900 | |
| 4G LTE Band | Band 1, Band 3, Band 7, Band 8, Band 20, Band 38 | Band 1, Band 3, 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 1800+, 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 | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 5.0 LE | Bluetooth 5.0 | |
| NFC | Yes | - | LG K40 has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | LG K40 | Xiaomi Redmi Note 12 |
|---|
| Supported Digital Audio Standards | WMA, AAC, PCM, MP3, FLAC, AAC +, eAAC+, OPUS, AMR-WB, AMR-NB, Vorbis | - | |
|---|---|---|---|
| Sound Enhancements | DTS: X 3D Premium Sound | - |
| FEATURES | LG K40 | Xiaomi Redmi Note 12 |
|---|
| Phone Functions | 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, gyroscope | |
| 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 | Graphite cooling, IR blaster, coin vibration motor |
| OTHERS | LG K40 | Xiaomi Redmi Note 12 |
|---|
| Included Accessories | Power adapter | 33W charger | |
|---|---|---|---|
| Compliant Standards | MIL-STD 810G | IP53, SGS Eye Care Display Certification, SGS Seamless Pro 120Hz Certification, Netflix HD Certification |
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