LG X400 (K121S) vs Motorola Moto Z2 Force (XT1789-07)
Side by side comparison between LG X400 vs Motorola Moto Z2 Force 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
5.5"
POLED
POLED
1440x2560
12
MP
MP
5mp
6GB
RAM
RAM
Octa-core
2730
mAh
mAh
(Non removable)
What's the better phone? Motorola Moto Z2 Force (XT1789-07)
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!
6 Advantages 
27 Advantages | 21 Common items in both devices |
| 16 million |
| Only digital zoom |
| Autofocus / LDAF/PDAF: laser/phase detection autofocus |
| EIS: Digital stabilization |
| (front) 5MP |
| (front) Full HD (1920x1080) |
| 4G LTE-A |
| +14 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 (K121S) | Moto Z2 Force (XT1789-07) | |
| Model | X400 (K121S) | Moto Z2 Force (XT1789-07) |
| Other model names | SKT LG X400, LGM-K121S, LGMK121S (SK Telecom) | Lenovo Moto Z2 Force 6GB RAM XT1789-07 Dual-Sim |
| Country or region available |  South Korea |  Brazil |
| Brand | LG | Motorola |
| Release date | 2/1/2017 | 8/1/2017, Announced: 7/1/2017 |
| Depth | 8 millimeters (0.31 inches) | 6.1 millimeters (0.24 inches) |
| Size (width x height) | 75.29 x 148.7 millimeters (2.96 x 5.85 in) | 76 x 155.8 millimeters (2.99 x 6.13 in) |
| Weight | 142 grams (4.97 ounces) | 143 grams (5.01 ounces) |
| Build, materials | Plastic body, glass front | Aluminum body, glass front |
| Protection against water and others | Not supported | Water repellent nano-coating (don't immerse) |
📲 Display | ||
| LG X400 (K121S) | Moto Z2 Force (XT1789-07) | |
| Display type | TFT IPS LCD | P-OLED |
| Screen size | 5.3" inches | 5.5" inches |
| Screen-to-body ratio | ~69.2% (screen-to-body ratio) | ~70.4% (screen-to-body ratio) |
| Display resolution | 720x1280 pixels | 1440x2560 pixels (16:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 277 PPI | 534 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | ShatterShield |
| Refresh rate | feature not registered | 60Hz |
| Display features | feature not registered | Not supported |
🤖 Operating System | ||
| LG X400 (K121S) | Moto Z2 Force (XT1789-07) | |
| System version | Android 7.0 Nougat | Android 7.1.1 Nougat |
| Firmware update | Android 8.0 Oreo | Android 9.0 Pie |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| LG X400 (K121S) | Moto Z2 Force (XT1789-07) | |
| Chipset | 64bit: MediaTek MT6750 (28nm) | 64bit: Qualcomm Snapdragon 835 (MSM8998) (10nm) |
| 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 2.35GHz Kryo 280 (Quad-core) 4x 1.9GHz Kryo 280 (Quad-core) |
| GPU graphical controller | ARM Mali-T860 MP2 520Mhz | Qualcomm Adreno 540 (670-710MHz) |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| LG X400 (K121S) | Moto Z2 Force (XT1789-07) | |
| RAM memory | 2GB LPDDR3 | 6GB LPDDR4 |
| Internal storage | 32GB (22GB available) | 64GB (45GB available) UFS 2.1 |
| External storage | Until 256GB microSD, microSDXC (dedicated slot) | Until 2TB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| LG X400 (K121S) | Moto Z2 Force (XT1789-07) | |
| Dual-SIM | Not supported | Dual-SIM Standby - Call active on one sim card (dedicated slot) |
| SIM card | 1 slot (Single-SIM) nano-SIM (4FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 300/50 Mbps | 450/50 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 850/900/1700/1900/2100 |
| Primary 4G network | LTE Cat6 850/900/1800/2100/2600 (Bands 1,3,5,7,8) VoLTE | LTE Cat9 (Bands 1, 2, 3, 4, 5, 7, 8, 12, 17, 19, 20, 26, 28, 34) TD-LTE (Bands 38, 39, 40, 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, LTE-A |
| Secondary 2G network | Not supported | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | Not supported | GPRS, EDGE |
📷 Camera | ||
| LG X400 (K121S) | Moto Z2 Force (XT1789-07) | |
| Back camera (main camera) | 13 megapixels | (dual camera) 12 megapixels 12MP mono f/2.01/2.9"1.25µmPDAF |
| Main camera resolution | 4160x3120 pixels | 4000x3000 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | 4K UHD (3840x2160) 30 fps |
| Flash | LED flash | Dual-LED on both cameras |
| Focal aperture | f/2.2 (aperture) | f/2.0 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | 1/3" inches | 1/2.9" inches |
| Pixel size | 1.12µm pixel | 1.25µm pixel |
| Autofocus | Autofocus | LDAF/PDAF: laser/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 only main camera | HDR photo on both cameras |
| Camera extras | feature not registered | 4K@30fps 1080p@30/60/120fps 720p@240fps Sony IMX386 sensor |
📸 Front camera | ||
| LG X400 (K121S) | Moto Z2 Force (XT1789-07) | |
| Front camera (secondary) | 5 megapixels | 5 megapixels |
| Front camera resolution | 2560x1920 pixels | 2592x1944 pixels |
| Video recording (secondary) | Full HD (1920x1080) | Full HD (1920x1080) |
| Front flash | Not supported | Dual-LED |
| Focal aperture | f/2.4 (aperture) | f/2.2 (aperture) |
| 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 (K121S) | Moto Z2 Force (XT1789-07) | |
| 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.265, H.264, H.263 |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, OGG, eAAC+, FLAC |
🔌 Connectivity | ||
| LG X400 (K121S) | Moto Z2 Force (XT1789-07) | |
| USB | MicroUSB 2.0, USB OTG On-The-Go | USB 3.1 Type-C, USB OTG On-The-Go |
| Audio output | 3.5mm jack | Type-C jack with 3.5mm jack adapter |
| TV output | Not supported | Not supported |
| Bluetooth | 4.2 + A2DP | 5.0 + A2DP/LE |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) 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 | A-GPS, GeoTagging |
| NFC | Supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| LG X400 (K121S) | Moto Z2 Force (XT1789-07) | |
| Sensors | Accelerometer Ambient light sensor Compass Fingerprint sensor (rear-mounted) Proximity sensor | Accelerometer Ambient light sensor Barometer Compass Fingerprint sensor Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| LG X400 (K121S) | Moto Z2 Force (XT1789-07) | |
| Battery type | Li-Ion: lithium-ion (Removable) | Li-Ion: lithium-ion (Non removable) |
| Battery capacity | 2800 mAh | 2730 mAh |
| Charger, watts | Wired charging | 15W Wired fast charging |
| Inductive / wireless charging | feature not registered | Not supported |
| Talk time autonomy | 9 hours | feature not registered |
| Standby | 390 hours (16.3 days) | feature not registered |
➕ Other features | ||
| LG X400 (K121S) | Moto Z2 Force (XT1789-07) | |
| 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: Black, Black/Grey, White/Gold |
☢️ Radiation rate | ||
| LG X400 (K121S) | Moto Z2 Force (XT1789-07) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | 0.87W/kg (head), 1.1W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.41W/kg (head), 1.45W/kg (body) |