In depth comparison and review of ASUS ZenFone 5Z (ZS620KL) and LG K51S. 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 | ASUS ZenFone 5Z (ZS620KL) | LG K51S |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | ZS620KL | LM-K510EMW | |
| Form Factor | Touch | Touch | |
| Height | 153 mm | 165.2 mm | LG K51S has greater height than ASUS ZenFone 5Z (ZS620KL). |
| Width | 75.65 mm | 76.7 mm | LG K51S has greater width than ASUS ZenFone 5Z (ZS620KL). |
| Depth | 7.7 mm | 8.26 mm | ASUS ZenFone 5Z (ZS620KL) is narrower than ASUS ZenFone 5Z (ZS620KL). |
| Weight | 155 g | 194 g | ASUS ZenFone 5Z (ZS620KL) is lighter than ASUS ZenFone 5Z (ZS620KL). |
| Body Colour | Midnight blue | Meteor silver | Pink | Titan | |
| Body Material | Aluminium | - | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | - | 1.335 W/kg (body), 0.501 W/kg (head) | |
| Integrated Components | FM radio | - | |
| Connector Type | Headset jack - mini-phone 3.5mm USB Type-C - 24 pin USB-C |
Headset jack - mini-phone 3.5mm USB Type-C - 24 pin USB-C |
|
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM | |
| SIM Card Configuration Details | Nano SIM + nano SIM/microSD | - |
| DISPLAY | ASUS ZenFone 5Z (ZS620KL) | LG K51S |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | IPS+ | IPS | |
| Screen Size (Display Size) | 6.2" | 6.55" | LG K51S has larger screen size than ASUS ZenFone 5Z (ZS620KL). |
| Screen Resolution (Display Resolution) | 2246 x 1080 pixels | 1600 x 720 pixels | ASUS ZenFone 5Z (ZS620KL) has better screen resolution than LG K51S. |
| Display Format | - | HD+ | |
| Pixel Density | 402 ppi | 268 ppi | ASUS ZenFone 5Z (ZS620KL) has better pixel density than LG K51S. |
| Aspect Ratio | 18:5:9 | 20:9 | |
| Max Brightness | 550 cd/m² | 400 cd/m² | ASUS ZenFone 5Z (ZS620KL) has better display brightness than LG K51S. |
| Display Enhancement Technology | Bluelight Filter for Eye Care | - | |
| Display Features | DCI-P3 Wide colour gamut, Auto Colour Temperature, Smart Screen On | Reading mode, FullVision display, night mode, hole in display | |
| Display Protection (Screen Protector) | Corning Gorilla Glass (scratch resistant glass), smudge-resistant oleophobic coating | Tempered glass |
| PROCESSOR | ASUS ZenFone 5Z (ZS620KL) | LG K51S |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 845 | MediaTek | |
|---|---|---|---|
| Processor Number | - | MT6765 | |
| Clock Speed | - | 2.3 GHz | |
| 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 630 | IMG PowerVR GE8320 |
| MEMORY | ASUS ZenFone 5Z (ZS620KL) | LG K51S |
|---|
| RAM | LPDDR4X SDRAM - 4 GB | 3 GB | ASUS ZenFone 5Z (ZS620KL) has more RAM than LG K51S. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 64 GB | Both phones have the same internal memory capacity. |
| User Memory | - | 50.2 GB | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 2 TB | microSDHC, microSDXC - up to 2 TB |
| CAMERA | ASUS ZenFone 5Z (ZS620KL) | LG K51S |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 4 | |
|---|---|---|---|
| Sensor Resolution | 12 Megapixel | 32 Megapixel | LG K51S has better camera resolution than ASUS ZenFone 5Z (ZS620KL). |
| Sensor Size | 1/2.55" | - | |
| Sensor Name | Sony Exmor RS IMX363 sensor | - | |
| Lens Aperture | F/1.8 | F/1.8 | Both phones have the same camera lens aperture. |
| Lens Construction | 6-element | - | |
| Field of View (FoV) | - | 76.3 degree(s) | |
| Optical Image Stabiliser (OIS) | 4 Stop OIS (Optical Image Stabilisation) | - | ASUS ZenFone 5Z (ZS620KL) has optical stabilisation. |
| Focus Adjustment | - | Automatic | |
| Minimum Focal Length (Focal Distance) | - | 24 mm | |
| Digital Zoom | - | 8x | |
| Self-Timer Delay | - | Yes | |
| Special Effects | Night HDR | HDR | |
| HDR Mode | Auto HDR mode | - | |
| Camera Modes | Panorama, Pro mode, Beauty mode, Auto mode, super resolution mode, GIF animation function, Real-Time Beautification, Real-time Protrait, Time Lapse (with power saving mode) | Burst mode, portrait mode, Flowers, Animals, Food, Person, Sunset, Sunrise, City, Landscape | |
| Face Recognition (Face ID) | - | Face detection | LG K51S has face detection. |
| White Balance | - | Automatic | |
| 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, Slo-mo video 1920 x 1080 (1080p) at 120 fps, Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps | 1920 x 1080 (1080p) at 30 fps | |
| Camera Features (Functions) | Dual Pixel technology, Phase Detect Auto-Focus (PDAF), 3-axis electronic image stabilisation, RAW image capture, 4-axis optical image stabilisation, Instant cameras switching, Live Emoji, 8 filters, AI Photo Learning, 32s long exposure | Phase Detect Auto-Focus (PDAF), geotagging, Big Pixels technology, Quad Pixel technology |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 8 Megapixel | 5 Megapixel | ASUS ZenFone 5Z (ZS620KL) has better second camera resolution than LG K51S. |
|---|---|---|---|
| Lens Type (2nd Camera) | Wide-angle lens | Super wide-angle lens | |
| Lens Aperture (2nd Camera) | - | F/2.2 | |
| Field of View (2nd Camera) | - | 115 degree(s) | |
| Minimum Focal Length (2nd Camera) | - | 16 mm | |
| Camera Features (2nd Camera) | 3-axis electronic image stabilisation | - |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Lens Aperture (3rd Camera) | - | F/2.4 | |
| Field of View (3rd Camera) | - | 88.9 degree(s) | |
| Camera Functions (3rd Camera) | - | Depth camera |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Lens Aperture (4th Camera) | - | F/2.4 | |
| Field of View (4th Camera) | - | 88.6 degree(s) | |
| Camera Functions (4th Camera) | - | Macro camera | |
| Camera Features (4th Camera) | - | 4cm macro photography |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 8 Megapixel | 13 Megapixel | LG K51S has better front camera resolution than ASUS ZenFone 5Z (ZS620KL). |
| Lens Type (Front) | Wide-angle lens | - | |
| Lens Aperture (Front) | F/2.0 | - | |
| Special Effects (Front) | Night HDR | - | |
| HDR Mode (Front) | Auto HDR mode | - | |
| Camera Modes (Front) | Beauty mode, Auto mode, selfie panorama, GIF animation function | Gesture Shot, Selfie portrait | |
| Face Recognition (Face ID) | - | Face detection | LG K51S has face detection. |
| Camera Features (Front) | PixelMaster camera, Electronic Image Stabiliser (EIS), 8 filters | 17 filters |
| BATTERY AND CHARGING | ASUS ZenFone 5Z (ZS620KL) | LG K51S |
|---|
| Battery Capacity (Battery Size) | 3300 mAh | 4000 mAh | LG K51S has larger battery capacity than ASUS ZenFone 5Z (ZS620KL). |
|---|---|---|---|
| Fast Charging Technology | BoostMaster Fast Charging | - | ASUS ZenFone 5Z (ZS620KL) 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 5Z (ZS620KL) | LG K51S |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 9.0 Pie | Android 9.0 Pie | |
| User Interface | ASUS ZenUI 5.0 | LG UX 9 | |
| Intelligent Assistant | - | Google Assistant | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS |
| COMMUNICATIONS | ASUS ZenFone 5Z (ZS620KL) | LG K51S |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, FDD-LTE, TDD-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 3, Band 7, Band 8, Band 20, Band 38 | |
| 4G LTE Frequency | - | FDD 2100, FDD 1800+, FDD 2600, FDD 900, FDD 800 DD, TDD 2600 | |
| Wireless Interface | IEEE 802.11ac | IEEE 802.11a/b/g/n | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.0 BLE | |
| Bluetooth Profiles | A2DP | HFP, HSP, OPP, PAN, SPP, GOEP, A2DP, AVRCP, HID, SAP, GAVDP, PBAP, MAP, GATT, HDP, HOGP, ScPP | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | ASUS ZenFone 5Z (ZS620KL) | LG K51S |
|---|
| Supported Digital Audio Standards | - | WMA, AAC, PCM, MP3, FLAC, AAC +, eAAC+, OPUS, AMR-WB, AMR-NB, Vorbis | |
|---|---|---|---|
| Supported Digital Video Standards | - | MKV, FLV, AVI, WMV, ASF, 3GP, TS, WebM, OGM, MP4 | |
| Sound Enhancements | ASUS BoostMaster technology, Hi-Res audio, DTS Headphone:X | DTS: X 3D Surround Sound |
| FEATURES | ASUS ZenFone 5Z (ZS620KL) | LG K51S |
|---|
| 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 | Ambient light sensor, proximity sensor, digital compass, gyro sensor, G-sensor, hall sensor, RGB sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass | |
| Security Devices | Face recognition, fingerprint reader | Fingerprint reader | |
| Additional Phone Features | Face Unlock, AudioWizard, NXP Smart AMP technology, ASUS Noise Reduction technology, Google Drive Storage (100 GB) (free for 1 year), Dual Smart AMP, Dual noise-cancelling microphones, AI Charging, AI Boost, ZeniMoji | DLNA Certified, Dual microphones, KnockON, QuickMemo+ function, Mini View function, Capture+, EasyHome, Clip Tray, Google Lens, AI Cam, Game Tools, Google Assistant Button |
| OTHERS | ASUS ZenFone 5Z (ZS620KL) | LG K51S |
|---|
| Included Accessories | Power adapter, USB-C cable, ASUS ZenEar S Hi-Res earphone with microphone | Power adapter, SIM card removal tool, USB-C cable | |
|---|---|---|---|
| Compliant Standards | - | MIL-STD 810G |
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