LG K7i (X230i) vs LG X400 (K121L)
Side by side comparison between LG K7i vs LG X400 phones, differences, pros, cons and full specifications. What's the better?
,
vs
5.3"
IPS
IPS
720x1280
13
MP
MP
5mp
2GB
RAM
RAM
Octa-core
2800
mAh
mAh
(Removable)
What's the better phone? LG X400 (K121L)
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!
2 Advantages 
21 Advantages | 25 Common items in both devices |
| 2GB LPDDR3 |
| Until 256GB microSD, microSDXC |
| Plastic body, glass front |
| TFT IPS LCD |
| 16 million |
| LED flash |
| Only digital zoom |
| +18 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 K7i (X230i) | LG X400 (K121L) | |
| Change model | ||
| Model | K7i (X230i) | X400 (K121L) |
| Other model names | LG K4 2017 (LG K7i Mosquito Away), LG-X230i, LGX230i | LG U+ X400, LGM-K121L, LGMK121L (LG Uplus) |
| Country or region available |  India |  South Korea |
| Brand | LG | LG |
| Release date | 2/1/2017 | 2/1/2017 |
| Depth | 8.1 millimeters (0.32 inches) | 8 millimeters (0.31 inches) |
| Size (width x height) | 74.13 x 145.8 millimeters (2.92 x 5.74 in) | 75.29 x 148.7 millimeters (2.96 x 5.85 in) |
| Weight | 154 grams (5.39 ounces) | 142 grams (4.97 ounces) |
| Build, materials | Plastic body, glass front | Plastic body, glass front |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| LG K7i (X230i) | LG X400 (K121L) | |
| Display type | TFT IPS LCD | TFT IPS LCD |
| Screen size | 5" inches | 5.3" inches |
| Screen-to-body ratio | ~63.7% (screen-to-body ratio) | ~69.2% (screen-to-body ratio) |
| Display resolution | 480x854 pixels (16:9) | 720x1280 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 196 PPI | 277 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Not supported |
| Refresh rate | 60Hz | feature not registered |
| Display features | Not supported | feature not registered |
🤖 Operating System | ||
| LG K7i (X230i) | LG X400 (K121L) | |
| System version | Android 6.0.1 Marshmallow | Android 7.0 Nougat |
| Firmware update | feature not registered | Android 8.0 Oreo |
| User Interface | LG UX 5.0 | feature not registered |
⚙️ Processor | ||
| LG K7i (X230i) | LG X400 (K121L) | |
| Chipset | 64bit: MediaTek MT6737M (28nm) | 64bit: MediaTek MT6750 (28nm) |
| CPU | Quad-core, 1 processor: 4x 1.1GHz ARM Cortex-A53 (Quad-core) | Octa-core, 2 processors: 4x 1.5GHz ARM Cortex-A53 (Quad-core) 4x 1GHz ARM Cortex-A53 (Quad-core) |
| GPU graphical controller | ARM Mali-T720 MP2 550Mhz | ARM Mali-T860 MP2 520Mhz |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| LG K7i (X230i) | LG X400 (K121L) | |
| RAM memory | 2GB LPDDR3 | 2GB LPDDR3 |
| Internal storage | 16GB (10GB available) eMMC 4.5 | 32GB (22GB available) |
| External storage | Until 256GB microSD, microSDXC (dedicated slot) | Until 256GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| LG K7i (X230i) | LG X400 (K121L) | |
| 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 | 150/50 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 | Tri-Band 900/1800/1900 |
| Primary 2G network | GSM 850/900/1800/1900 | GSM 900/1800/1900 |
| Primary 3G network | UMTS 900/1900/2100 | UMTS 2100 |
| Primary 4G network | LTE Cat4 (3, 5) TD-LTE (40) VoLTE | LTE Cat6 850/900/1800/2100/2600 (Bands 1,3,5,7,8) VoLTE |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE | 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 | ||
| LG K7i (X230i) | LG X400 (K121L) | |
| Back camera (main camera) | 8 megapixels | 13 megapixels |
| Main camera resolution | 3264x2448 pixels | 4160x3120 pixels |
| Video recording (primary) | HD (1280x720) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/2.6 (aperture) | f/2.2 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | 1/3" inches |
| Pixel size | feature not registered | 1.12µm pixel |
| Autofocus | Autofocus | 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 only main camera |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| LG K7i (X230i) | LG X400 (K121L) | |
| Front camera (secondary) | 5 megapixels | 5 megapixels |
| Front camera resolution | 2560x1920 pixels | 2560x1920 pixels |
| Video recording (secondary) | HD (1280x720) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.7 (aperture) | f/2.4 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | 1/5" inches |
| Pixel size | feature not registered | 1.12µm pixel |
🔉 Sound and multimedia | ||
| LG K7i (X230i) | LG X400 (K121L) | |
| Loudspeaker | Mono sound (not stereo) | Supported |
| Active noise cancellation | Not supported | 2 microphones or more |
| Radio | FM (RDS) | FM (RDS) |
| TV | Not supported | Digital TV |
| Video formats | MP4, H.264, H.263, MKV | MP4, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+ | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| LG K7i (X230i) | LG X400 (K121L) | |
| USB | MicroUSB 2.0 | MicroUSB 2.0, USB OTG On-The-Go |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 4.1 + A2DP | 4.2 + A2DP |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging | A-GPS, GeoTagging, GLONASS |
| NFC | Not supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| LG K7i (X230i) | LG X400 (K121L) | |
| Sensors | Accelerometer Proximity sensor | Accelerometer Ambient light sensor Compass Fingerprint sensor (rear-mounted) Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| LG K7i (X230i) | LG X400 (K121L) | |
| Battery type | Li-Ion: lithium-ion (Removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 2500 mAh | 2800 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | Not supported | feature not registered |
| Talk time autonomy | 3.2 hours | 9 hours |
| Standby | 310 hours (12.9 days) | 390 hours (16.3 days) |
➕ Other features | ||
| LG K7i (X230i) | LG X400 (K121L) | |
| 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: Brown • Knock Code, Knock On • Quick Share, Quick Selfie • Mosquito Away (mosquito repellent) | • Colors: Black, Gold • 2.5D Arc Glass screen • LG UX 5.0 • Wide-angle 120° front camera • KnockOn, Knock Code • DMB-TV (Korea) |
☢️ Radiation rate | ||
| LG K7i (X230i) | LG X400 (K121L) | |
| 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 |