LG X400 (K121K) vs Meizu MX4 (Ubuntu edition)
Side by side comparison between LG X400 vs Meizu MX4 phones, differences, pros, cons and full specifications. What's the better?
,
5.3"
IPS
IPS
720x1280
13
MP
MP
5mp
2GB
RAM
RAM
Octa-core
2800
mAh
mAh
(Removable)
vs
5.36"
IPS
IPS
1152x1920
20.7
MP
MP
2.1mp
2GB
RAM
RAM
Octa-core
3100
mAh
mAh
(Non removable)
What's the better phone? LG X400 (K121K)
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!
12 Advantages 
12 Advantages | 24 Common items in both devices |
| 2GB LPDDR3 |
| TFT IPS LCD |
| 16 million |
| Only digital zoom |
| Autofocus |
| HDR photo only main camera |
| f/2.2 (aperture) |
| +17 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 | ||
| LG X400 (K121K) | Meizu MX4 (Ubuntu edition) | |
| Model | X400 (K121K) | MX4 (Ubuntu edition) |
| Other model names | KT LG X400, LGM-K121K, LGMK121K (Korea Telecom) | Meizu MX4 Ubuntu Touch |
| Country or region available |  South Korea | feature not registered |
| Brand | LG | Meizu |
| Release date | 2/1/2017 | 5/1/2015 |
| Depth | 8 millimeters (0.31 inches) | 8.9 millimeters (0.35 inches) |
| Size (width x height) | 75.29 x 148.7 millimeters (2.96 x 5.85 in) | 75.2 x 144 millimeters (2.96 x 5.67 in) |
| Weight | 142 grams (4.97 ounces) | 147 grams (5.15 ounces) |
| Build, materials | Plastic body, glass front | feature not registered |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| LG X400 (K121K) | Meizu MX4 (Ubuntu edition) | |
| Display type | TFT IPS LCD | TFT IPS LCD |
| Screen size | 5.3" inches | 5.36" inches |
| Screen-to-body ratio | ~69.2% (screen-to-body ratio) | ~75.5% (screen-to-body ratio) |
| Display resolution | 720x1280 pixels | 1152x1920 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 277 PPI | 418 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Gorilla Glass 3 |
| Refresh rate | feature not registered | feature not registered |
| Display features | feature not registered | feature not registered |
🤖 Operating System | ||
| LG X400 (K121K) | Meizu MX4 (Ubuntu edition) | |
| System version | Android 7.0 Nougat | Ubuntu Touch 1.0 |
| Firmware update | Android 8.0 Oreo | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| LG X400 (K121K) | Meizu MX4 (Ubuntu edition) | |
| Chipset | 64bit: MediaTek MT6750 (28nm) | 32bit: MediaTek MT6595 (28nm) |
| CPU | Octa-core, 2 processors: 4x 1.5GHz ARM Cortex-A53 (Quad-core) 4x 1GHz ARM Cortex-A53 (Quad-core) | Octa-core, 2 processors: 4x 2.2GHz ARM Cortex-A17 (Quad-core) 4x 1.7GHz ARM Cortex-A7 (Quad-core) |
| GPU graphical controller | ARM Mali-T860 MP2 520Mhz | PowerVR G6200 MP4 |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| LG X400 (K121K) | Meizu MX4 (Ubuntu edition) | |
| RAM memory | 2GB LPDDR3 | 2GB LPDDR3 |
| Internal storage | 32GB (22GB available) | 16GB (13GB available) |
| External storage | Until 256GB microSD, microSDXC (dedicated slot) | Not supported |
📶 Mobile networks | ||
| LG X400 (K121K) | Meizu MX4 (Ubuntu edition) | |
| Dual-SIM | Not supported | Not supported |
| SIM card | 1 slot (Single-SIM) nano-SIM (4FF) | 1 slot (Single-SIM) micro-SIM (3FF) |
| 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 | Tri-Band 900/1800/1900 | Quad-Band 850/900/1800/1900 |
| Primary 2G network | GSM 900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 2100 | UMTS 850/900/1900/2100 |
| Primary 4G network | LTE Cat6 850/900/1800/2100/2600 (Bands 1,3,5,7,8) VoLTE | LTE Cat4 1800/2100/2600 (Bands 1,3,7) TD-LTE 2500 (Bands 41) |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE, LTE-A | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE |
| Secondary 2G network | Not supported | Not supported |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | Not supported | Not supported |
📷 Camera | ||
| LG X400 (K121K) | Meizu MX4 (Ubuntu edition) | |
| Back camera (main camera) | 13 megapixels | 20.7 megapixels |
| Main camera resolution | 4160x3120 pixels | 5248x3936 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | 4K UHD (3840x2160) 30 fps |
| Flash | LED flash | Dual-LED flash |
| Focal aperture | f/2.2 (aperture) | f/2.2 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | 1/3" inches | 1/2.3" inches |
| Pixel size | 1.12µm pixel | feature not registered |
| Autofocus | Autofocus | Autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | EIS: Digital stabilization | feature not registered |
| 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 only main camera | HDR photo only main camera |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| LG X400 (K121K) | Meizu MX4 (Ubuntu edition) | |
| Front camera (secondary) | 5 megapixels | 2.1 megapixels |
| Front camera resolution | 2560x1920 pixels | 1920x1080 pixels |
| Video recording (secondary) | Full HD (1920x1080) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.4 (aperture) | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | 1/5" inches | feature not registered |
| Pixel size | 1.12µm pixel | feature not registered |
🔉 Sound and multimedia | ||
| LG X400 (K121K) | Meizu MX4 (Ubuntu edition) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | FM (RDS) | Not supported |
| TV | Digital TV | Not supported |
| Video formats | MP4, H.264, H.263, XviD, MKV | MP4, H.264, H.263 |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, eAAC+ |
🔌 Connectivity | ||
| LG X400 (K121K) | Meizu MX4 (Ubuntu edition) | |
| USB | MicroUSB 2.0, USB OTG On-The-Go | MicroUSB 2.0 |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Micro-B USB MHL |
| Bluetooth | 4.2 + A2DP | 4.0 + A2DP |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS | A-GPS, GeoTagging, GLONASS, BeiDou |
| NFC | Supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| LG X400 (K121K) | Meizu MX4 (Ubuntu edition) | |
| Sensors | Accelerometer Ambient light sensor Compass Fingerprint sensor (rear-mounted) Proximity sensor | Accelerometer Ambient light sensor Compass Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| LG X400 (K121K) | Meizu MX4 (Ubuntu edition) | |
| Battery type | Li-Ion: lithium-ion (Removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 2800 mAh | 3100 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | feature not registered | feature not registered |
| Talk time autonomy | 9 hours | 33 hours (1.4 days) |
| Standby | 390 hours (16.3 days) | feature not registered |
➕ Other features | ||
| LG X400 (K121K) | Meizu MX4 (Ubuntu edition) | |
| 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: Black, Gold • 2.5D Arc Glass screen • LG UX 5.0 • Wide-angle 120° front camera • KnockOn, Knock Code • DMB-TV (Korea) | • Colors: White, Gold • USB OTG On-The-Go • Nega LCD • BeiDou GPS • WiFi direct |
☢️ Radiation rate | ||
| LG X400 (K121K) | Meizu MX4 (Ubuntu edition) | |
| 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 |