Detailed comparison and review of ASUS ZenFone AR (ZS571KL) 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 AR (ZS571KL) | LG K40 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | ZS571KL | LM-X420EMW | |
| Form Factor | Touch | Touch | |
| Height | 158.67 mm | 153 mm | ASUS ZenFone AR (ZS571KL) has greater height than LG K40. |
| Width | 77.4 mm | 71.9 mm | ASUS ZenFone AR (ZS571KL) has greater width than LG K40. |
| Depth | 7.99 mm | 8.3 mm | ASUS ZenFone AR (ZS571KL) is narrower than ASUS ZenFone AR (ZS571KL). |
| Weight | 185 g | 145 g | LG K40 is lighter than ASUS ZenFone AR (ZS571KL). |
| Body Colour | Black | New Aurora Black | Moroccan blue | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.59 W/kg (body), 0.85 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 AR (ZS571KL) | LG K40 |
|---|
| Display Type | OLED display | LCD display | |
|---|---|---|---|
| Display Technology | Quad HD Super AMOLED | IPS | |
| Screen Size (Display Size) | 5.7" | 5.7" | Both phones have the same screen size. |
| Screen Resolution (Display Resolution) | 2560 x 1440 pixels | 1440 x 720 pixels | ASUS ZenFone AR (ZS571KL) has better screen resolution than LG K40. |
| Display Format | QHD | HD | |
| Pixel Density | - | 282 ppi | |
| Aspect Ratio | - | 18:9 | |
| Display Enhancement Technology | Bluelight Filter for Eye Care | - | |
| Display Features | ASUS Glove Touch technology, ASUS Tru2Life | Curved glass, FullVision display | |
| Display Protection (Screen Protector) | Fingerprint-resistant oleophobic coating, Corning Gorilla Glass 4 (scratch resistant glass) | - |
| PROCESSOR | ASUS ZenFone AR (ZS571KL) | LG K40 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 821 | MediaTek | |
|---|---|---|---|
| Processor Number | MSM8996 Pro | MT6762 | |
| Clock Speed | 2.35 GHz | 2 GHz | ASUS ZenFone AR (ZS571KL) has higher clock speed than LG K40. |
| Processor Core Qty | Quad-core | 8-core | LG K40 has higher processor core quantity than ASUS ZenFone AR (ZS571KL). |
| 64-bit Architecture | Yes | Yes | Both phones have 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 530 | PowerVR GE8320 |
| MEMORY | ASUS ZenFone AR (ZS571KL) | LG K40 |
|---|
| RAM | LPDDR4 SDRAM - 6 GB | 2 GB | ASUS ZenFone AR (ZS571KL) has more RAM than LG K40. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 32 GB | ASUS ZenFone AR (ZS571KL) has more internal memory than LG K40. |
| 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 AR (ZS571KL) | LG K40 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 1 | |
|---|---|---|---|
| Sensor Resolution | 23 Megapixel | 16 Megapixel | ASUS ZenFone AR (ZS571KL) has better camera resolution than LG K40. |
| Sensor Size | 1/2.6" | 1/3" | LG K40 has better camera sensor size than ASUS ZenFone AR (ZS571KL). |
| Sensor Name | Sony Exmor RS IMX318 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 AR (ZS571KL) has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Laser Auto Focus | Yes | - | |
| Minimum Focal Length (Focal Distance) | 27 mm | - | |
| Special Effects | Depth of field | - | |
| HDR Mode | HDR Pro | - | |
| Camera Modes | Panorama, Time-lapse mode, Slow motion mode, night mode, selfie mode, manual mode, super resolution mode, low-light shots, All Smiles mode, Photo Effect Mode, panoramic selfies, selfie panorama, GIF animation function, Real-Time Beautification | - | |
| Light Source | Dual LED flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps, 3840 x 2160 (4K) at 30 fps | - | |
| Camera Features (Functions) | Zero Shutter Lag, Phase Detect Auto-Focus (PDAF), Smart Remove, Time Rewind, PixelMaster 3.0 camera, 3-axis electronic image stabilisation, Blue Glass IR Filter, Continuous Auto Focus (CAF), RAW image capture, ASUS TriTech technology | Phase Detect Auto-Focus (PDAF), GIF Creation, 8 different scenes |
| SECOND CAMERA |
|---|
| Camera Features (2nd Camera) | Motion Tracking Rear Camera | - |
|---|
| 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" | 1/4" | Both phones have the same front camera sensor size. |
| Sensor Name (Front) | Omnivision OV8856 sensor | - | |
| Lens Type (Front) | Wide-angle lens | - | |
| Lens Aperture (Front) | F/2.0 | F/2.0 | Both phones have the same front camera lens aperture. |
| Pixel Size (Front) | - | 1.12 μm | |
| Focus Adjustment | Focus free | - | |
| Special Effects (Front) | Miniature, HDR, Depth of field | - | |
| HDR Mode (Front) | HDR Pro | - | |
| Camera Modes (Front) | Panorama, Time-lapse mode, Slow motion mode, night mode, selfie mode, manual mode, super resolution mode, low-light shots, All Smiles mode, Photo Effect Mode, panoramic selfies, selfie panorama, GIF animation function, Real-Time Beautification | Portrait mode | |
| Light Source (Front) | Display flash | LED flash | |
| Camera Features (Front) | PixelMaster 3.0 camera, Time Rewind, Smart Remove | - |
| BATTERY AND CHARGING | ASUS ZenFone AR (ZS571KL) | LG K40 |
|---|
| Battery Capacity (Battery Size) | 3300 mAh | 3000 mAh | ASUS ZenFone AR (ZS571KL) has larger battery capacity than LG K40. |
|---|---|---|---|
| Fast Charging Technology | Qualcomm Quick Charge 3.0, Power Delivery 2.0, BoostMaster Fast Charging | - | ASUS ZenFone AR (ZS571KL) has fast charging technology. |
| Standby Time | - | 100 hours | |
| Talk Time | - | 480 minutes | |
| Run Time Details | - | Talk: up to 480 min Standby: up to 100 hrs |
|
| Battery Technology | Lithium polymer | Lithium Ion |
| CELLULAR | ASUS ZenFone AR (ZS571KL) | 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 7.0 Nougat | Android 8.1 Oreo | |
| User Interface | ASUS ZenUI 3.0 | - | |
| Intelligent Assistant | - | Google Assistant | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS |
| COMMUNICATIONS | ASUS ZenFone AR (ZS571KL) | LG K40 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, VoLTE, FDD-LTE, TDD-LTE | 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 | |
| 3G UMTS Band | Band 1, Band 2, Band 5, Band 6, Band 8 | - | |
| 3G UMTS Frequency | 2100, 1900, 850, 800, 900 | - | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 5, Band 7, Band 8, Band 18, Band 19, Band 20, Band 26, Band 28, Band 38, Band 40, Band 41 | 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 lower, FDD 800 upper, FDD 800 DD, FDD 850+, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | FDD 2100, FDD 1800+, FDD 2600, FDD 900, FDD 800 DD, TDD 2600 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 4.2 | Bluetooth 5.0 LE | |
| Bluetooth Profiles | OPP, PAN, A2DP, AVRCP, HID | - | |
| NFC | - | Yes | LG K40 has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | ASUS ZenFone AR (ZS571KL) | LG K40 |
|---|
| Supported Digital Audio Standards | - | WMA, AAC, PCM, MP3, FLAC, AAC +, eAAC+, OPUS, AMR-WB, AMR-NB, Vorbis | |
|---|---|---|---|
| Sound Enhancements | DTS-HD Premium Sound, Virtual Surround Sound, DTS Headphone:X 7.1, Hi-Res audio | DTS: X 3D Premium Sound |
| FEATURES | ASUS ZenFone AR (ZS571KL) | 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, barometer, gyro sensor, G-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, Google Drive Storage (100 GB) (free for 2 years), Tango technology support, ASUS SonicMaster 3.0 technology, NXP Smart AMP technology, ASUS Noise Reduction technology, Daydream technology support | Google Lens, Google Assistant Key, AI Cam |
| OTHERS | ASUS ZenFone AR (ZS571KL) | LG K40 |
|---|
| Included Accessories | Power adapter, USB-C cable | Power adapter | |
|---|---|---|---|
| Compliant Standards | - | MIL-STD 810G |
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