Asus 6z (128GB) vs LG K40 (X420HM)
Side by side comparison between Asus 6z vs LG K40 phones, differences, pros, cons and full specifications. What's the better?
,
6.4"
IPS
IPS
1080x2340
48
MP
MP
48mp
6GB
RAM
RAM
Octa-core
5000
mAh
mAh
(Non removable)
vs
5.7"
IPS
IPS
720x1440
16
MP
MP
8mp
2GB
RAM
RAM
Octa-core
3000
mAh
mAh
(Non removable)
What's the better phone? Asus 6z (128GB)
The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!
24 Advantages 
4 Advantages | 22 Common items in both devices |
| Until 1TB microSD, microSDXC |
| TFT IPS LCD |
| 16 million |
| Only digital zoom |
| LDAF/PDAF: laser/phase detection autofocus / PDAF: phase detection autofocus |
| EIS: Digital stabilization |
| HDR photo on both cameras |
| +15 specs and more in the table below |
Check the comparison table below for more items that are not evaluated in comparison score above.
Highlight differences Clear highlight📱 Model features | ||
| Asus 6z (128GB) | LG K40 (X420HM) | |
| Model | Asus 6z (128GB) | K40 (X420HM) |
| Other model names | Asus Zenfone 6z 2019 (6GB RAM) ZS630KL | LG K40 LMX420HM, LM-X420HM, LG-LMX420HM |
| Country or region available |  India |   (Latin America), Colombia |
| Brand | Asus | LG |
| Release date | 5/16/2019 | 3/31/2019 |
| Depth | 9.2 millimeters (0.36 inches) | 8.3 millimeters (0.33 inches) |
| Size (width x height) | 75.4 x 159.1 millimeters (2.97 x 6.26 in) | 71.9 x 153 millimeters (2.83 x 6.02 in) |
| Weight | 190 grams (6.65 ounces) | 150 grams (5.25 ounces) |
| Build, materials | Aluminum frame, glass front/back | Plastic body, glass front |
| Protection against water and others | Not supported | MIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant. |
📲 Display | ||
| Asus 6z (128GB) | LG K40 (X420HM) | |
| Display type | TFT IPS LCD | TFT IPS LCD |
| Screen size | 6.4" inches | 5.7" inches |
| Screen-to-body ratio | ~83.8% (screen-to-body ratio) | ~76.2% (screen-to-body ratio) |
| Display resolution | 1080x2340 pixels (19.5:9) | 720x1440 pixels |
| Touchscreen | Capacitive Multitouch 10-points | Capacitive Multitouch |
| Pixel density (dot pitch) | 403 PPI | 282 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 6 | Not supported |
| Refresh rate | 60Hz | feature not registered |
| Display features | 600nits[peak] HDR10 | feature not registered |
🤖 Operating System | ||
| Asus 6z (128GB) | LG K40 (X420HM) | |
| System version | Android 9.0 Pie | Android 8.1 Oreo |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Asus 6z (128GB) | LG K40 (X420HM) | |
| Chipset | 64bit: Qualcomm Snapdragon 855 (SM8150) (7nm) | 64bit: MediaTek Helio P22 (MT6762) (12nm) |
| CPU | Octa-core, 3 processors: 1x 2.84GHz Kryo 485 (Single-core) 3x 2.42GHz Kryo 485 (Triple-core) 4x 1.78GHz Kryo 485 (Quad-core) | Octa-core, 2 processors: 4x 2GHz ARM Cortex-A53 (Quad-core) 4x 1.5GHz ARM Cortex-A53 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 640 (585MHz) | PowerVR GE8320 (650MHz) |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Asus 6z (128GB) | LG K40 (X420HM) | |
| RAM memory | 6GB LPDDR4X | 2GB LPDDR3 |
| Internal storage | 128GB (110GB available) UFS 2.1 | 32GB (20GB available) eMMC 5.1 |
| External storage | Until 1TB microSD, microSDXC (dedicated slot) | Until 1TB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Asus 6z (128GB) | LG K40 (X420HM) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (dedicated slot) | Not supported |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 1 slot (Single-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 1024/150 Mbps | 300/50 Mbps |
| Network technology | 2G, 3G, 4G | 2G, 3G, 4G |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Quad-Band 850/900/1800/1900 | Quad-Band 850/900/1800/1900 |
| Primary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/900/1900/2100 | UMTS 850/900/1700/1900/2100 |
| Primary 4G network | LTE Cat16/13 (Bands 1, 2, 3, 5, 7, 8, 20, 28) TD-LTE (Bands 38, 40, 41) VoLTE | LTE Cat6 (Bands 1, 2, 3, 4, 5, 7, 8, 12, 17, 28, 66) |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE, LTE-A |
| Secondary 2G network | GSM 850/900/1800/1900 | Not supported |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | GPRS, EDGE | Not supported |
📷 Camera | ||
| Asus 6z (128GB) | LG K40 (X420HM) | |
| Back camera (main camera) | (dual camera) 48 megapixels 13MP ultrawide f/2.411mm | 16 megapixels |
| Main camera resolution | 8000x6000 pixels | 4608x3456 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 60 fps | Full HD (1920x1080) 30 fps |
| Flash | Dual-LED flash | LED flash on both cameras |
| Focal aperture | f/1.8 (aperture) | f/2.0 (aperture) |
| Focal length | 26mm lens | feature not registered |
| Sensor size | 1/2" inches | 1/3" inches |
| Pixel size | 0.8µm pixel | 1µm pixel |
| Autofocus | LDAF/PDAF: laser/phase detection autofocus | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | EIS: Digital stabilization | EIS: Digital stabilization |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Not supported | Not supported |
| HDR | HDR photo on both cameras | HDR photo on both cameras |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Asus 6z (128GB) | LG K40 (X420HM) | |
| Front camera (secondary) | Uses the back motorized camera (flip-up/rotating) | 8 megapixels |
| Front camera resolution | 8000x6000 pixels | 3264x2448 pixels |
| Video recording (secondary) | 4K UHD (3840x2160) | Full HD (1920x1080) |
| Front flash | Dual-LED flash | LED |
| Focal aperture | f/1.8 (aperture) | f/2.0 (aperture) |
| Focal length | 26mm lens | feature not registered |
| Sensor size | 1/2" inches | feature not registered |
| Pixel size | 0.8µm pixel | feature not registered |
🔉 Sound and multimedia | ||
| Asus 6z (128GB) | LG K40 (X420HM) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | FM | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Asus 6z (128GB) | LG K40 (X420HM) | |
| USB | USB 2.0 Type-C reversible connector | MicroUSB 2.0, USB OTG On-The-Go |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 5.0 + A2DP/LE | 5.0 + A2DP/LE |
| WiFi | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS | A-GPS, GeoTagging |
| NFC | Supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Asus 6z (128GB) | LG K40 (X420HM) | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Hall effect Proximity sensor | Accelerometer Ambient light sensor Fingerprint sensor (rear-mounted) Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Asus 6z (128GB) | LG K40 (X420HM) | |
| Battery type | LiPo: li-ion polymer (Non removable) | Li-Ion: lithium-ion (Non removable) |
| Battery capacity | 5000 mAh | 3000 mAh |
| Charger, watts | 18W (9V/2A) Wired fast charging | Wired charging |
| Inductive / wireless charging | feature not registered | feature not registered |
| Talk time autonomy | 33 hours (1.4 days) | 8 hours |
| Standby | 624 hours (26 days) | 100 hours (4.2 days) |
➕ Other features | ||
| Asus 6z (128GB) | LG K40 (X420HM) | |
| Call control | Voice dialing, Voice recorder | Voice dialing, Voice recorder |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (T9), MMS, E-mail, Push mail |
| Hands-free calling | Supported | Supported |
| Video calling | Supported | Supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML, HTML5 | HTML, XHTML, HTML5 |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Midnight Black, Twilight Silver • 19.5:9, HDR10, DCI-P3 100% display • Quick Charge 4.0 • 24-bit/192kHz audio • DTS Headphone X • Motorized flip-up main/selfie camera • Google Pay | • Colors: Black, Moroccan Blue, Platinum Gray • 18:9 ratio FullVision display • LED notification • DTS-X Surround sound |
☢️ Radiation rate | ||
| Asus 6z (128GB) | LG K40 (X420HM) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |