Motorola Moto X4 (XT1900-02) vs LG Viper 4G LTE (LS840)
Side by side comparison between Motorola Moto X4 vs LG Viper 4G LTE phones, differences, pros, cons and full specifications. What's the better?
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5.2"
IPS
IPS
1080x1920
12
MP
MP
16mp
4GB
RAM
RAM
Octa-core
3000
mAh
mAh
(Non removable)
vs
What's the better phone? Motorola Moto X4 (XT1900-02)
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!
28 Advantages 
3 Advantages | 19 Common items in both devices |
| TFT IPS LCD / TFT NOVA IPS |
| 16 million |
| Only digital zoom |
| PDAF: phase detection autofocus / Autofocus |
| 4G LTE-A / 4G LTE |
| Capacitive |
| Multitouch |
| +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 | ||
| Moto X4 (XT1900-02) | LG Viper 4G LTE (LS840) | |
| Model | Moto X4 (XT1900-02) | Viper 4G LTE (LS840) |
| Other model names | Lenovo Moto X4 XT1900 64GB, Motorola Moto X4 Dual-Sim (2017) | Sprint LG Viper LS840 CDMA + LTE |
| Country or region available |      Australia, India, Indonesia, Japan, New Zealand |  USA |
| Brand | Motorola | LG |
| Release date | 10/1/2017 | 4/22/2012 |
| Depth | 8 millimeters (0.31 inches) | 11.7 millimeters (0.46 inches) |
| Size (width x height) | 73.4 x 148.35 millimeters (2.89 x 5.84 in) | 62 x 116.6 millimeters (2.44 x 4.59 in) |
| Weight | 163 grams (5.71 ounces) | 142 grams (4.97 ounces) |
| Build, materials | Aluminum frame, glass front/back | feature not registered |
| Protection against water and others | IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant | Not supported |
📲 Display | ||
| Moto X4 (XT1900-02) | LG Viper 4G LTE (LS840) | |
| Display type | TFT IPS LCD | TFT NOVA IPS |
| Screen size | 5.2" inches | 4" inches |
| Screen-to-body ratio | ~68.5% (screen-to-body ratio) | ~63% (screen-to-body ratio) |
| Display resolution | 1080x1920 pixels (16:9) | 480x800 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 424 PPI | 233 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 3 | Gorilla Glass |
| Refresh rate | 60Hz | feature not registered |
| Display features | Not supported | feature not registered |
🤖 Operating System | ||
| Moto X4 (XT1900-02) | LG Viper 4G LTE (LS840) | |
| System version | Android 7.1.1 Nougat | Android 2.3.6 Gingerbread |
| Firmware update | Android 9.0 Pie | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Moto X4 (XT1900-02) | LG Viper 4G LTE (LS840) | |
| Chipset | 64bit: Qualcomm Snapdragon 630 SDM630 (14nm) | 32bit: Qualcomm Snapdragon MSM8660 |
| CPU | Octa-core, 2 processors: 4x 2.2GHz ARM Cortex-A53 (Quad-core) 4x 1.8GHz ARM Cortex-A53 (Quad-core) | Dual-core, 1 processor: 2x 1.2GHz Scorpion (Dual-core) |
| GPU graphical controller | Qualcomm Adreno 508 650Mhz | Qualcomm Adreno 220 |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Moto X4 (XT1900-02) | LG Viper 4G LTE (LS840) | |
| RAM memory | 4GB LPDDR4 | 1GB LPDDR2 |
| Internal storage | 64GB (44GB available) eMMC | 4GB (1.68GB available) |
| External storage | Until 256GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot) | Until 32GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| Moto X4 (XT1900-02) | LG Viper 4G LTE (LS840) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot) | Not supported |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 1 slot (Single-SIM) Standard mini-SIM (2FF) |
| Maximum Download / Upload | 450/50 Mbps | 75/25 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 | Not supported |
| Primary 2G network | GSM 850/900/1800/1900 | CDMA 800/1900 |
| Primary 3G network | UMTS 800/850/900/1700/1900/2100 | CDMA2000 1xEV-DO |
| Primary 4G network | LTE Cat9 (Bands 1, 3, 5, 7, 8, 19, 20, 28) TD-LTE (Bands 38, 40, 41) Japan version: LTE Cat9 (Bands 1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 28) TD-LTE (Bands 38, 40, 41) | LTE 1900 |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | CDMA2000 EV-DO Rev A, LTE |
| 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 | ||
| Moto X4 (XT1900-02) | LG Viper 4G LTE (LS840) | |
| Back camera (main camera) | (dual camera) 12 megapixels 8MP ultrawide f/2.213mm | 5 megapixels |
| Main camera resolution | 4000x3000 pixels | 2560x1920 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | Full HD (1920x1080) 24 fps |
| Flash | Dual-LED on main camera and LED on front camera | LED flash |
| Focal aperture | f/2.0 (aperture) | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | 1/2.55" inches | feature not registered |
| Pixel size | 1.4µm pixel | feature not registered |
| Autofocus | PDAF: phase detection autofocus | Autofocus |
| Touch focus | Supported | Not 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 |
| BSI sensor | Not supported | Not supported |
| HDR | HDR photo on both cameras | Not supported |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Moto X4 (XT1900-02) | LG Viper 4G LTE (LS840) | |
| Front camera (secondary) | 16 megapixels | 0.3 megapixels |
| Front camera resolution | 4608x3456 pixels | 640x480 pixels |
| Video recording (secondary) | Full HD (1920x1080) | VGA (640x480) |
| Front flash | LED | Not supported |
| Focal aperture | f/2.0 (aperture) | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | 1/3.1" inches | feature not registered |
| Pixel size | 1µm pixel | feature not registered |
🔉 Sound and multimedia | ||
| Moto X4 (XT1900-02) | LG Viper 4G LTE (LS840) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 2 microphones or more | Not supported |
| Radio | FM | Not supported |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263 | MP4, H.264, H.263, WMV |
| Audio formats | MP3, WAV, OGG, eAAC+, FLAC | MP3, WAV, WMA, eAAC+ |
🔌 Connectivity | ||
| Moto X4 (XT1900-02) | LG Viper 4G LTE (LS840) | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | MicroUSB 2.0 |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 5.0 + A2DP/LE | 3.0 + 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) WiFi Direct, hotspot |
| DLNA | Not supported | Supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO | A-GPS, GeoTagging |
| NFC | Supported | Supported |
| Infrared port | Not supported | feature not registered |
🧭 Sensors | ||
| Moto X4 (XT1900-02) | LG Viper 4G LTE (LS840) | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (front-mounted) Gyroscope Proximity sensor | Accelerometer Ambient light sensor Compass Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Moto X4 (XT1900-02) | LG Viper 4G LTE (LS840) | |
| Battery type | Li-Ion: lithium-ion (Non removable) | Li-Ion: lithium-ion (Removable) BL-44JS |
| Battery capacity | 3000 mAh | 1700 mAh |
| Charger, watts | 15W Wired fast charging | Wired charging |
| Inductive / wireless charging | feature not registered | feature not registered |
| Talk time autonomy | feature not registered | 4.8 hours |
| Standby | feature not registered | 290 hours (12.1 days) |
➕ Other features | ||
| Moto X4 (XT1900-02) | LG Viper 4G LTE (LS840) | |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, Voice recorder |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (Swype), 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, Flash player |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Super Black, Sterling Blue, Silver • Android One • 3D glass back panel • TurboPower charging: 6h in 15min | • Colors: Black • 4GB microSD included • Java framework |
☢️ Radiation rate | ||
| Moto X4 (XT1900-02) | LG Viper 4G LTE (LS840) | |
| 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 |