In depth comparison and review of LG K9 and ASUS Zenfone 8. 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 K9 | ASUS Zenfone 8 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | ZS590KS | |
| Form Factor | Touch | Touch | |
| Height | 146.3 mm | 148 mm | ASUS Zenfone 8 has greater height than LG K9. |
| Width | 73.2 mm | 68.5 mm | LG K9 has greater width than ASUS Zenfone 8. |
| Depth | 8.2 mm | 8.9 mm | LG K9 is narrower than LG K9. |
| Weight | 148 g | 169 g | LG K9 is lighter than LG K9. |
| Body Colour | Aurora black | Obsidian black | |
| Protection | - | Drop-proof, water-resistant, dust-resistant | |
| Waterproof (Water-resistant) | - | Yes | ASUS Zenfone 8 is waterproof. |
| IP rating | - | IP68, IP65 | |
| SAR Value | 1.43 W/kg (body), 0.763 W/kg (head) | 1.582 W/kg (body), 1.412 W/kg (head), 3.498 W/kg (limb) | |
| Integrated Components | FM radio | FM radio | |
| Connector Type | Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Single-SIM | Dual-SIM |
| DISPLAY | LG K9 | ASUS Zenfone 8 |
|---|
| Display Type | LCD display | OLED display | |
|---|---|---|---|
| Display Technology | TFT | AMOLED | |
| Screen Size (Display Size) | 5" | 5.9" | ASUS Zenfone 8 has larger screen size than LG K9. |
| Screen Resolution (Display Resolution) | 1280 x 720 pixels | 2400 x 1080 pixels | ASUS Zenfone 8 has better screen resolution than LG K9. |
| Display Format | HD | Full HD+ | |
| Aspect Ratio | - | 20:9 | |
| Max Brightness | - | 1100 cd/m² | |
| HDR | - | Yes | ASUS Zenfone 8 has HDR. |
| HDR Technology | - | HDR10+ | |
| Display Enhancement Technology | OnCell technology | DC Dimming | |
| Display Refresh Rate | - | 120 Hz | |
| Touch Sampling Rate | - | 240 Hz | |
| Display Features | - | Always-on display, Glove Touch, Delta-E < 1, 107% NTSC, 151.9% sRGB, 112% DCI-P3 | |
| Display Protection (Screen Protector) | - | Corning Gorilla Glass Victus (scratch resistant glass) |
| PROCESSOR | LG K9 | ASUS Zenfone 8 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 210 | Qualcomm Snapdragon 888 5G | |
|---|---|---|---|
| Processor Number | MSM8909 | - | |
| Clock Speed | 1.3 GHz | 2.842 GHz | ASUS Zenfone 8 has higher clock speed than LG K9. |
| Processor Core Qty | Quad-core | 8-core | ASUS Zenfone 8 has higher processor core quantity than LG K9. |
| Graphics System (GPU) | - | Qualcomm ADRENO 660 |
| MEMORY | LG K9 | ASUS Zenfone 8 |
|---|
| RAM | 2 GB | LPDDR5 SDRAM - 8 GB | ASUS Zenfone 8 has more RAM than LG K9. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 16 GB | 128 GB | ASUS Zenfone 8 has more internal memory than LG K9. |
| Memory Interface | - | UFS 3.1 | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC - up to 32 GB | - |
| CAMERA | LG K9 | ASUS Zenfone 8 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 2 | |
|---|---|---|---|
| Sensor Resolution | 8 Megapixel | 64 Megapixel | ASUS Zenfone 8 has better camera resolution than LG K9. |
| Sensor Size | - | 1/1.7" | |
| Sensor Name | - | Sony Exmor RS IMX686 sensor | |
| Lens Type | - | Wide-angle lens | |
| Lens Aperture | - | F/1.8 | |
| Field of View (FoV) | - | 78.3 degree(s) | |
| Pixel Size | - | 1.6 μm | |
| Optical Image Stabiliser (OIS) | - | Optical Image Stabiliser (OIS) | ASUS Zenfone 8 has optical stabilisation. |
| Focus Adjustment | Automatic | - | |
| Minimum Focal Length (Focal Distance) | - | 26.6 mm | |
| Digital Zoom | 4x | - | |
| Special Effects | HDR | - | |
| Camera Modes | Timer mode, sport mode, low-light shots | Slow motion video, Time-lapse mode, Pro mode | |
| Light Source | LED light | LED flash | |
| Video Resolutions | 1280 x 720 (720p) | 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, Slo-mo video 1920 x 1080 (1080p) at 240 fps, Slo-mo video 1280 x 720 (720p) at 480 fps, 7680 x 4320 (8K) at 24 fps, Slo-mo video 3840 x 2160 (4K) at 120 fps | |
| Camera Features (Functions) | - | Phase Detect Auto-Focus (PDAF), 3-axis electronic image stabilisation, 4-axis optical image stabilisation, Motion tracking, Quad Bayer technology, 2x1 On-Chip Lens (OCL) |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 12 Megapixel | |
|---|---|---|---|
| Sensor Size (2nd Camera) | - | 1/2.55" | |
| Sensor Name (2nd Camera) | - | Sony Exmor RS IMX363 sensor | |
| Lens Type (2nd Camera) | - | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | - | F/2.2 | |
| Pixel Size (2nd Camera) | - | 1.4 μm | |
| Focal Length Equivalent to 35mm Camera | - | 14.3 | |
| Camera Features (2nd Camera) | - | Real-time distortion correction, 4cm macro photography, Dual Phase Detect Auto-Focus (PDAF) |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 5 Megapixel | 12 Megapixel | ASUS Zenfone 8 has better front camera resolution than LG K9. |
| Sensor Name (Front) | - | Sony Exmor RS IMX663 sensor | |
| Lens Aperture (Front) | - | F/2.4 | |
| Pixel Size (Front) | - | 1.22 μm | |
| Focus Adjustment | - | Automatic | |
| Camera Modes (Front) | - | Portrait | |
| Camera Features (Front) | - | Dual Pixel technology, EIS video stabilisation, Dual Phase Detect Auto-Focus (PDAF) |
| BATTERY AND CHARGING | LG K9 | ASUS Zenfone 8 |
|---|
| Battery Capacity (Battery Size) | 2500 mAh | 4000 mAh | ASUS Zenfone 8 has larger battery capacity than LG K9. |
|---|---|---|---|
| Fast Charging Technology | - | Qualcomm Quick Charge 4.0, Power Delivery 3.0 | ASUS Zenfone 8 has fast charging technology. |
| Battery Technology | Lithium Ion | - |
| CELLULAR | LG K9 | ASUS Zenfone 8 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 5G | ASUS Zenfone 8 has more advanced generation mobile network. |
| Operating System | Android 7.1.2 (Nougat) | Android 11 | |
| User Interface | - | ASUS ZenUI 8.0 | |
| Navigation | GPS | GPS, GLONASS, BeiDou, Galileo, QZSS, NavIC |
| COMMUNICATIONS | LG K9 | ASUS Zenfone 8 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, HSPA+, FDD-LTE, TDD-LTE, DC-HSPA+, Gigabit 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 3, Band 4, Band 5, Band 6, Band 8, Band 19 | |
| 3G UMTS Frequency | - | 2100, 1900, 1800, 1700, 850, 800, 900, 800 | |
| 4G LTE Band | - | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 17, Band 18, Band 19, Band 20, Band 26, Band 28, Band 34, Band 38, Band 39, Band 40, Band 41, Band 42 | |
| 4G LTE Frequency | - | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 850+, FDD 700 APT, TDD 2000, TDD 2600, TDD 1900, TDD 2300, TDD 2500, TDD 3500 | |
| 5G NR Band | - | N1, n2, n3, n5, n7, n8, n20, n28, n38, n77, n78, n12 | |
| 5G NR Frequency | - | FDD 2100, FDD 1900PCS, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 800, FDD 700APT, TDD TD 2600, TDD TD 3700, TDD TD 3500, n12 | |
| Wireless Interface | IEEE 802.11b/g/n | IEEE 802.11a/b/g/n/ac/ax | |
| Bluetooth | Bluetooth 4.2 | Bluetooth 5.2 EDR | |
| Bluetooth Profiles | - | HFP, OPP, PAN, A2DP, AVRCP, HID | |
| NFC | - | Yes | ASUS Zenfone 8 has NFC reader for mobile payments. |
| Modem | - | Snapdragon X60 5G | |
| Messaging Services | SMS, MMS | - |
| MEDIA | LG K9 | ASUS Zenfone 8 |
|---|
| Sound Enhancements | - | Dirac HD Sound, ASUS Audio Wizard, Hi-Res audio certified, OZO Audio, Qualcomm aptX audio, Qualcomm aptX HD audio, Qualcomm aptX Adaptive | |
|---|---|---|---|
| Audio Amplifier | - | Dual Cirrus Logic CS35L45 |
| FEATURES | LG K9 | ASUS Zenfone 8 |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | - | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass, G-sensor, gyroscope | |
| Security Devices | - | Fingerprint reader (under display), face recognition | |
| Additional Phone Features | KnockON, Knock Code function, Smart Keyboard, Easy Home mode, QuickMemo+ function, Smart Lock, Shortcut Keys | MIMO technology, AudioWizard, One Hand Mode, ARCore, Triple internal microphones with ASUS Noise Reduction Technology, Multi-Magnet Stereo Speakers |
| OTHERS | LG K9 | ASUS Zenfone 8 |
|---|
| Included Accessories | USB cable, power adapter | SIM card removal tool, USB-C to USB-C cable, protective case, power adapter (30 W) | |
|---|---|---|---|
| Compliant Standards | HAC (Hearing Aid Compatible) | IP68, IP65, SGS Eye Care Display Certification, SGS Seamless Pro 120Hz Certification | |
| Max Height of Shock Resistance | - | 2 m |
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