Detailed comparison and review of ASUS ZenFone 3 (ZE520KL) and LG K40. 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 | ASUS ZenFone 3 (ZE520KL) | LG K40 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | ZE520KL | LM-X420EMW | |
| Form Factor | Touch | Touch | |
| Height | 146.87 mm | 153 mm | LG K40 has greater height than ASUS ZenFone 3 (ZE520KL). |
| Width | 73.98 mm | 71.9 mm | ASUS ZenFone 3 (ZE520KL) has greater width than LG K40. |
| Depth | 7.69 mm | 8.3 mm | ASUS ZenFone 3 (ZE520KL) is narrower than ASUS ZenFone 3 (ZE520KL). |
| Weight | 144 g | 145 g | ASUS ZenFone 3 (ZE520KL) is lighter than ASUS ZenFone 3 (ZE520KL). |
| Body Colour | Moon white | Gold shimmer | Black sapphire | New Aurora Black | Moroccan blue | |
| Body Material | Metal, glass | - | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 0.938 W/kg (body), 0.278 W/kg (head) | 1.597 W/kg (body), 0.518 W/kg (head) | |
| Integrated Components | FM radio | FM radio | |
| Connector Type | Headset jack - mini-phone 3.5mm USB Type-C - 24 pin USB-C |
Headset jack - mini-phone 3.5mm Micro-USB - 5 pin Micro-USB Type B |
|
| SIM Card Type (Size) | Nano SIM | - | |
| SIM Card Qty | Dual-SIM (SIM1 and SIM2/MicroSD slots) | Dual-SIM | |
| SIM Card Configuration Details | Nano SIM + nano SIM/microSD | - |
| DISPLAY | ASUS ZenFone 3 (ZE520KL) | LG K40 |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | Super IPS+ | IPS | |
| Screen Size (Display Size) | 5.2" | 5.7" | LG K40 has larger screen size than ASUS ZenFone 3 (ZE520KL). |
| Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 1440 x 720 pixels | ASUS ZenFone 3 (ZE520KL) has better screen resolution than LG K40. |
| Display Format | Full HD | HD | |
| Pixel Density | - | 282 ppi | |
| Aspect Ratio | - | 18:9 | |
| Max Brightness | 600 cd/m² | - | |
| Display Enhancement Technology | Bluelight Filter for Eye Care | - | |
| Display Features | ASUS Glove Touch technology, 2.5D curved glass | Curved glass, FullVision display | |
| Display Protection (Screen Protector) | Fingerprint-resistant oleophobic coating, Corning Gorilla Glass (scratch resistant glass) | - |
| PROCESSOR | ASUS ZenFone 3 (ZE520KL) | LG K40 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 625 | MediaTek | |
|---|---|---|---|
| Processor Number | - | MT6762 | |
| Clock Speed | 2 GHz | 2 GHz | Both phones have the same clock speed. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | Yes | Both phones have 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 506 | PowerVR GE8320 |
| MEMORY | ASUS ZenFone 3 (ZE520KL) | LG K40 |
|---|
| RAM | 3 GB | 2 GB | ASUS ZenFone 3 (ZE520KL) has more RAM than LG K40. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 32 GB | Both phones have the same internal memory capacity. |
| User Memory | - | 20.2 GB | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 2 TB | microSDHC, microSDXC - up to 2 TB |
| CAMERA | ASUS ZenFone 3 (ZE520KL) | LG K40 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution | 16 Megapixel | 16 Megapixel | Both phones have the same camera resolution. |
| Sensor Size | - | 1/3" | |
| Sensor Name | Sony Exmor RS IMX298 sensor | - | |
| Lens Aperture | F/2.0 | F/2.0 | Both phones have the same camera lens aperture. |
| Lens Construction | 6-element | - | |
| Pixel Size | - | 1 μm | |
| Optical Image Stabiliser (OIS) | 4 Stop OIS (Optical Image Stabilisation) | - | ASUS ZenFone 3 (ZE520KL) has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Laser Auto Focus | Yes | - | |
| Special Effects | Depth of field | - | |
| HDR Mode | Auto HDR mode | - | |
| Camera Modes | Panorama, Time-lapse mode, night mode, manual mode, Real time beauty mode, super resolution mode, All Smiles mode, Mini mode | - | |
| Light Source | Dual LED flash | LED flash | |
| Video Resolutions | 3840 x 2160 (4K) | - | |
| Camera Features (Functions) | Sapphire crystal lens cover, GIF animation function, Smart Remove, Electronic Image Stabiliser (EIS), Time Rewind, Largan lens | Phase Detect Auto-Focus (PDAF), GIF Creation, 8 different scenes |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 8 Megapixel | 8 Megapixel | Both phones have the same front camera resolution. |
| Sensor Size (Front) | - | 1/4" | |
| Lens Aperture (Front) | F/2.0 | F/2.0 | Both phones have the same front camera lens aperture. |
| Pixel Size (Front) | - | 1.12 μm | |
| HDR Mode (Front) | Auto HDR mode | - | |
| Camera Modes (Front) | Selfie panorama | Portrait mode | |
| Light Source (Front) | - | LED flash | |
| Camera Features (Front) | PixelMaster camera | - |
| BATTERY AND CHARGING | ASUS ZenFone 3 (ZE520KL) | LG K40 |
|---|
| Battery Capacity (Battery Size) | 2650 mAh | 3000 mAh | LG K40 has larger battery capacity than ASUS ZenFone 3 (ZE520KL). |
|---|---|---|---|
| Standby Time | - | 100 hours | |
| Talk Time | - | 480 minutes | |
| Run Time Details | - | Talk: up to 480 min Standby: up to 100 hrs |
|
| Battery Technology | - | Lithium Ion |
| CELLULAR | ASUS ZenFone 3 (ZE520KL) | LG K40 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 6.0 (Marshmallow) | Android 8.1 Oreo | |
| User Interface | ASUS ZenUI 3.0 | - | |
| Intelligent Assistant | - | Google Assistant | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS |
| COMMUNICATIONS | ASUS ZenFone 3 (ZE520KL) | LG K40 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, FDD-LTE, DC-HSPA+ | 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 5, Band 7, Band 8, Band 20 | Band 1, Band 3, Band 7, Band 8, Band 20, Band 38 | |
| 4G LTE Frequency | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD | FDD 2100, FDD 1800+, FDD 2600, FDD 900, FDD 800 DD, TDD 2600 | |
| Wireless Interface | Infrared (IrDA), IEEE 802.11b/g/n/ac | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 4.2 | Bluetooth 5.0 LE | |
| NFC | - | Yes | LG K40 has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | ASUS ZenFone 3 (ZE520KL) | LG K40 |
|---|
| 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 | ASUS ZenFone 3 (ZE520KL) | 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, digital compass, gyro sensor, hall sensor, RGB sensor | Ambient light sensor, proximity sensor | |
| Security Devices | Fingerprint reader | Face recognition, fingerprint reader | |
| Additional Phone Features | Infrared remote control, Dual microphones, Hi-Res Audio, Google Drive Storage (100 GB) (free for 2 years), ASUS SonicMaster 3.0 technology, ASUS NoiseZero Talk technology | Google Lens, Google Assistant Key, AI Cam |
| OTHERS | ASUS ZenFone 3 (ZE520KL) | LG K40 |
|---|
| Included Accessories | Power adapter | Power adapter | |
|---|---|---|---|
| Compliant Standards | - | MIL-STD 810G |
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