Asus Zenfone 4 (ZE554KL 64GB/6GB) vs LG K20 (X120EMW)
Side by side comparison between Asus Zenfone 4 vs LG K20 phones, differences, pros, cons and full specifications. What's the better?
,
5.5"
IPS
IPS
1080x1920
12.2
MP
MP
8mp
6GB
RAM
RAM
Octa-core
3300
mAh
mAh
(Non removable)
vs
5.45"
IPS
IPS
480x960
8
MP
MP
5mp
1GB
RAM
RAM
Quad-core
3000
mAh
mAh
(Non removable)
What's the better phone? Asus Zenfone 4 (ZE554KL 64GB/6GB)
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 
5 Advantages | 19 Common items in both devices |
| Until 256GB microSD, microSDXC |
| TFT IPS LCD |
| 16 million |
| Only digital zoom |
| PDAF: phase detection autofocus / Autofocus |
| HDR photo on both cameras |
| (front) Full HD (1920x1080) |
| +12 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 Zenfone 4 (ZE554KL 64GB/6GB) | LG K20 (X120EMW) | |
| Model | Zenfone 4 (ZE554KL 64GB/6GB) | K20 (X120EMW) |
| Other model names | Asus Zenfone 4 (NFC not available) Snapdragon 630 (6GB RAM) | LG K20 2019 LMX120EMW, LM-X120EMW |
| Country or region available |      (Latin America), (Global, International), Brazil, India, Indonesia |    (Europe), (Global, International), Iran, Tunisia |
| Brand | Asus | LG |
| Release date | 10/1/2017 | 8/7/2019 |
| Depth | 7.5 millimeters (0.3 inches) | 8.3 millimeters (0.33 inches) |
| Size (width x height) | 75.2 x 155.4 millimeters (2.96 x 6.12 in) | 71.9 x 148.6 millimeters (2.83 x 5.85 in) |
| Weight | 165 grams (5.78 ounces) | 152 grams (5.32 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 Zenfone 4 (ZE554KL 64GB/6GB) | LG K20 (X120EMW) | |
| Display type | TFT IPS LCD | TFT IPS LCD |
| Screen size | 5.5" inches | 5.45" inches |
| Screen-to-body ratio | ~71.4% (screen-to-body ratio) | ~71.7% (screen-to-body ratio) |
| Display resolution | 1080x1920 pixels | 480x960 pixels (18:9) |
| Touchscreen | Capacitive Multitouch 10-points | Capacitive Multitouch |
| Pixel density (dot pitch) | 401 PPI | 197 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 3 | Not supported |
| Refresh rate | feature not registered | 60Hz |
| Display features | feature not registered | Not supported |
🤖 Operating System | ||
| Asus Zenfone 4 (ZE554KL 64GB/6GB) | LG K20 (X120EMW) | |
| System version | Android 7.1.1 Nougat | Android 9.0 Pie |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Asus Zenfone 4 (ZE554KL 64GB/6GB) | LG K20 (X120EMW) | |
| Chipset | 64bit: Qualcomm Snapdragon 630 SDM630 (14nm) | 64bit: MediaTek MT6739 (28nm) |
| CPU | Octa-core, 2 processors: 4x 2.2GHz ARM Cortex-A53 (Quad-core) 4x 1.8GHz ARM Cortex-A53 (Quad-core) | Quad-core, 1 processor: 4x 1.5GHz ARM Cortex-A53 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 508 | PowerVR GE8100 MP1 (570MHz) |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Asus Zenfone 4 (ZE554KL 64GB/6GB) | LG K20 (X120EMW) | |
| RAM memory | 6GB LPDDR4 | 1GB LPDDR3 |
| Internal storage | 64GB (52GB available) | 16GB (11GB available) eMMC 5.1 |
| External storage | Until 256GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot) | Until 256GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Asus Zenfone 4 (ZE554KL 64GB/6GB) | LG K20 (X120EMW) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot) | Dual-SIM Standby - Call active on one sim card (dedicated slot) |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 300/50 Mbps | 150/50 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 | Brazil version: UMTS 800/850/900/1700/1900/2100 Global/India/Indonesia version: UMTS 850/900/2100 | UMTS 850/900/1900/2100 |
| Primary 4G network | LTE Cat6 Brazil version: LTE (Bands 1,2,3,4,5,7,8,12,17,28) Global/India/Indonesia version: LTE (Bands 1,3,5,7,8,20) TD-LTE (Bands 40) | LTE Cat4 (1, 3, 7, 8, 20) TD-LTE (38) VoLTE |
| 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+, TD-LTE, LTE |
| Secondary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | GPRS, EDGE | GPRS, EDGE |
📷 Camera | ||
| Asus Zenfone 4 (ZE554KL 64GB/6GB) | LG K20 (X120EMW) | |
| Back camera (main camera) | (dual camera) 12.2 megapixels 8MP 12mm | 8 megapixels |
| Main camera resolution | 4032x3024 pixels | 3264x2448 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | LED flash | LED flash on both cameras |
| Focal aperture | f/1.8 (aperture) | f/2.0 (aperture) |
| Focal length | 25mm lens | 27mm lens |
| Sensor size | 1/2.55" inches | 1/4" inches |
| Pixel size | 1.4µm pixel | 1.12µm pixel |
| Autofocus | PDAF: phase detection autofocus | Autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | OIS (4-axis): Optical 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 Zenfone 4 (ZE554KL 64GB/6GB) | LG K20 (X120EMW) | |
| Front camera (secondary) | 8 megapixels | 5 megapixels |
| Front camera resolution | 3264x2448 pixels | 2560x1920 pixels |
| Video recording (secondary) | Full HD (1920x1080) | Full HD (1920x1080) |
| Front flash | Not supported | LED |
| Focal aperture | f/2.0 (aperture) | f/2.2 (aperture) |
| Focal length | 24mm lens | 24mm lens |
| Sensor size | feature not registered | 1/5" inches |
| Pixel size | feature not registered | 1.12µm pixel |
🔉 Sound and multimedia | ||
| Asus Zenfone 4 (ZE554KL 64GB/6GB) | LG K20 (X120EMW) | |
| 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 | MP4, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, OGG, eAAC+ | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Asus Zenfone 4 (ZE554KL 64GB/6GB) | LG K20 (X120EMW) | |
| USB | USB 2.0 Type-C reversible connector | MicroUSB 2.0 |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 5.0 + A2DP/LE | 4.2 + A2DP |
| WiFi | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | 802.11 b/g/n [wifi4] (2.4GHz) |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, BeiDou | A-GPS, GeoTagging, GLONASS |
| NFC | Not supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Asus Zenfone 4 (ZE554KL 64GB/6GB) | LG K20 (X120EMW) | |
| Sensors | Accelerometer Ambient light sensor Compass Fingerprint sensor Gyroscope Hall effect Proximity sensor | Accelerometer Ambient light sensor Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Asus Zenfone 4 (ZE554KL 64GB/6GB) | LG K20 (X120EMW) | |
| Battery type | LiPo: li-ion polymer (Non removable) | Li-Ion: lithium-ion (Non removable) BL-01 |
| Battery capacity | 3300 mAh | 3000 mAh |
| Charger, watts | 10W (5V/2A) Wired charging | 6W (5V/1.2A) Wired charging |
| Inductive / wireless charging | feature not registered | feature not registered |
| Talk time autonomy | 30 hours (1.3 days) | 17 hours |
| Standby | 552 hours (23 days) | 600 hours (25 days) |
➕ Other features | ||
| Asus Zenfone 4 (ZE554KL 64GB/6GB) | LG K20 (X120EMW) | |
| 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: Moonlight white, Mint green, Midnight black • Asus ZenUI 4.0 • 2.5D glass screen • Sony IMX362 back camera sensor • Fast battery charging: 50% in 36min • 24-bit/192kHz audio • DTS surround sound • VoLTE | • Colors: Black, Blue, Platinum • Android Go edition • Google assistant • WiFi hotspot |
☢️ Radiation rate | ||
| Asus Zenfone 4 (ZE554KL 64GB/6GB) | LG K20 (X120EMW) | |
| 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 |