LG K4 (VS425) vs LG X Fast (Dual K600Y)
Side by side comparison between LG K4 vs LG X Fast phones, differences, pros, cons and full specifications. What's the better?
,
4.5"
IPS
IPS
480x854
5
MP
MP
2mp
1.5GB
RAM
RAM
Quad-core
1940
mAh
mAh
(Removable)
vs
5.5"
IPS
IPS
1440x2560
12.2
MP
MP
8mp
3GB
RAM
RAM
Hexa-core
3000
mAh
mAh
(Removable)
What's the better phone? LG X Fast (Dual K600Y)
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!
1 Advantage 
24 Advantages | 23 Common items in both devices |
| 8.9 millimeters (0.35 inches) |
| TFT IPS LCD |
| 16 million |
| LED flash |
| Only digital zoom |
| Autofocus |
| EIS: Digital stabilization |
| +16 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 K4 (VS425) | LG X Fast (Dual K600Y) | |
| Model | LG K4 (VS425) | LG X Fast (Dual K600Y) |
| Other model names | Verizon LG K4 LTE (16GB) VS425, LG-VS425 | LG X mach, LG fast K600Y, LG-K600Y, LGK600Y, LG X5 |
| Country or region available |  USA |  Taiwan |
| Brand | LG | LG |
| Release date | 3/26/2016, Announced: 2/1/2016 | 9/1/2016 |
| Depth | 8.9 millimeters (0.35 inches) | 8.9 millimeters (0.35 inches) |
| Size (width x height) | 66.7 x 131.9 millimeters (2.63 x 5.19 in) | 76.5 x 149.1 millimeters (3.01 x 5.87 in) |
| Weight | 113 grams (3.96 ounces) | 156 grams (5.46 ounces) |
| Build, materials | Plastic body, glass front | feature not registered |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| LG K4 (VS425) | LG X Fast (Dual K600Y) | |
| Display type | TFT IPS LCD | TFT IPS LCD |
| Screen size | 4.5" inches | 5.5" inches |
| Screen-to-body ratio | ~63.4% (screen-to-body ratio) | ~73.1% (screen-to-body ratio) |
| Display resolution | 480x854 pixels | 1440x2560 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 218 PPI | 534 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Gorilla Glass |
| Refresh rate | 60Hz | feature not registered |
| Display features | Not supported | feature not registered |
🤖 Operating System | ||
| LG K4 (VS425) | LG X Fast (Dual K600Y) | |
| System version | Android 5.1.1 Lollipop | Android 6.0.1 Marshmallow |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| LG K4 (VS425) | LG X Fast (Dual K600Y) | |
| Chipset | 32bit: Qualcomm Snapdragon 210 MSM8909 (28nm) | 64bit: Qualcomm Snapdragon 808 MSM8992 (20nm) |
| CPU | Quad-core, 1 processor: 4x 1.1GHz ARM Cortex-A7 (Quad-core) | Hexa-core, 2 processors: 2x 1.8GHz ARM Cortex-A57 (Dual-core) 4x 1.4GHz ARM Cortex-A53 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 304 | Qualcomm Adreno 418 |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| LG K4 (VS425) | LG X Fast (Dual K600Y) | |
| RAM memory | 1.5GB LPDDR3 | 3GB LPDDR3 |
| Internal storage | 16GB (10GB available) | 32GB (22GB available) |
| External storage | Until 32GB microSD, microSDHC (dedicated slot) | Until 256GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| LG K4 (VS425) | LG X Fast (Dual K600Y) | |
| Dual-SIM | Not supported | Dual-SIM Standby - Call active on one sim card (dedicated slot) |
| SIM card | 1 slot (Single-SIM) micro-SIM (3FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 150/50 Mbps | 450/50 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 | CDMA 800/1900, GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | CDMA2000 1xEV-DO | UMTS 850/900/1900/2100 |
| Primary 4G network | LTE Cat4 (Bands 2, 4, 5, 13) | LTE Cat9 700/800/850/900/1700/1800/1900/2100/2600 (Bands 1,2,3,4,5,7,8,12,17,20,28) TD-LTE 1900/2300/2500/2600 (Bands 38,39,40,41) |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, LTE | 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 K4 (VS425) | LG X Fast (Dual K600Y) | |
| Back camera (main camera) | 5 megapixels | 12.2 megapixels |
| Main camera resolution | 2592x1944 pixels | 4032x3024 pixels |
| Video recording (primary) | HD (1280x720) 30 fps | 4K UHD (3840x2160) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/2.8 (aperture) | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | 1.55µm 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 | Not supported | HDR photo only main camera |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| LG K4 (VS425) | LG X Fast (Dual K600Y) | |
| Front camera (secondary) | 2 megapixels | 8 megapixels |
| Front camera resolution | 1600x1200 pixels | 3264x2448 pixels |
| Video recording (secondary) | HD (1280x720) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.8 (aperture) | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | feature not registered |
🔉 Sound and multimedia | ||
| LG K4 (VS425) | LG X Fast (Dual K600Y) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | Not supported | 2 microphones or more |
| Radio | FM (RDS) | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263, XviD | MP4, H.264, H.263, DivX, XviD, MKV |
| Audio formats | MP3, WAV, eAAC+, FLAC | MP3, WAV, eAAC+, FLAC |
🔌 Connectivity | ||
| LG K4 (VS425) | LG X Fast (Dual K600Y) | |
| USB | MicroUSB 2.0 | MicroUSB 2.0 |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 4.1 + A2DP | 4.1 + A2DP |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) WiFi Direct, hotspot |
| DLNA | Not supported | Supported |
| GPS | A-GPS, GeoTagging, GLONASS | A-GPS, GeoTagging, GLONASS |
| NFC | Not supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| LG K4 (VS425) | LG X Fast (Dual K600Y) | |
| Sensors | Accelerometer Ambient light sensor Proximity sensor | Accelerometer Ambient light sensor Compass Fingerprint sensor Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| LG K4 (VS425) | LG X Fast (Dual K600Y) | |
| Battery type | Li-Ion: lithium-ion (Removable) BL-49JH | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 1940 mAh | 3000 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | Not supported | feature not registered |
| Talk time autonomy | 10 hours | 13 hours |
| Standby | 500 hours (20.8 days) | 300 hours (12.5 days) |
➕ Other features | ||
| LG K4 (VS425) | LG X Fast (Dual K600Y) | |
| Call control | Voice dialing, Voice recorder | Voice dialing, Voice recorder, Voice commands |
| 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 Knock Code | • Colors: Titan, White • USB OTG On-The-Go • LG AirDrive, KnockCode • Slow motion • Miracast • WiFi Dual-Band |
☢️ Radiation rate | ||
| LG K4 (VS425) | LG X Fast (Dual K600Y) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 1.22W/kg (head), 1.29W/kg (body) | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.605W/kg (head), 1.1W/kg (body) |