Microsoft Lumia 640 XL (4G LTE) vs LG K4 2017 (Dual X230K)
Side by side comparison between Microsoft Lumia 640 XL vs LG K4 (2017) phones, differences, pros, cons and full specifications. What's the better?
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5.7"
IPS
IPS
720x1280
13
MP
MP
5mp
1GB
RAM
RAM
Quad-core
3000
mAh
mAh
(Removable)
vs
What's the better phone? Microsoft Lumia 640 XL (4G LTE)
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!
14 Advantages 
8 Advantages | 22 Common items in both devices |
| Plastic body, glass front |
| TFT IPS LCD |
| 16 million |
| LED flash |
| Only digital zoom |
| Autofocus |
| EIS: Digital stabilization |
| +15 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 | ||
| Microsoft Lumia 640 XL (4G LTE) | LG K4 2017 (Dual X230K) | |
| Model | Lumia 640 XL (4G LTE) | LG K4 2017 (Dual X230K) |
| Other model names | Microsoft Lumia 640 XL LTE RM-1075 Dual-sim | LG K4 X230K (LG K7 in Philippines), LG-X230K, LGX230K |
| Country or region available |  (Global, International) |    China, Philippines, Taiwan |
| Brand | Microsoft | LG |
| Release date | 4/1/2015 | 2/1/2017 |
| Depth | 9 millimeters (0.35 inches) | 8.1 millimeters (0.32 inches) |
| Size (width x height) | 81.5 x 157.9 millimeters (3.21 x 6.22 in) | 74.13 x 145.8 millimeters (2.92 x 5.74 in) |
| Weight | 171 grams (5.99 ounces) | 145 grams (5.08 ounces) |
| Build, materials | Plastic body, glass front | Plastic body, glass front |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Microsoft Lumia 640 XL (4G LTE) | LG K4 2017 (Dual X230K) | |
| Display type | TFT IPS LCD | TFT IPS LCD |
| Screen size | 5.7" inches | 5" inches |
| Screen-to-body ratio | ~69.6% (screen-to-body ratio) | ~63.7% (screen-to-body ratio) |
| Display resolution | 720x1280 pixels | 480x854 pixels (16:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 258 PPI | 196 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 3 | Not supported |
| Refresh rate | feature not registered | 60Hz |
| Display features | feature not registered | Not supported |
🤖 Operating System | ||
| Microsoft Lumia 640 XL (4G LTE) | LG K4 2017 (Dual X230K) | |
| System version | Windows Phone 8.1 | Android 6.0.1 Marshmallow |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | LG UX 5.0 |
⚙️ Processor | ||
| Microsoft Lumia 640 XL (4G LTE) | LG K4 2017 (Dual X230K) | |
| Chipset | 32bit: Qualcomm Snapdragon 400 MSM8226 (28nm) | 64bit: MediaTek MT6737M (28nm) |
| CPU | Quad-core, 1 processor: 4x 1.2GHz ARM Cortex-A7 (Quad-core) | Quad-core, 1 processor: 4x 1.1GHz ARM Cortex-A53 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 305 | ARM Mali-T720 MP2 550Mhz |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Microsoft Lumia 640 XL (4G LTE) | LG K4 2017 (Dual X230K) | |
| RAM memory | 1GB LPDDR2 | 1GB LPDDR3 |
| Internal storage | 8GB (3GB available) | 8GB (4GB available) eMMC 4.5 |
| External storage | Until 256GB microSD, microSDXC (dedicated slot) | Until 32GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Microsoft Lumia 640 XL (4G LTE) | LG K4 2017 (Dual X230K) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (dedicated slot) | Dual-SIM Standby - Call active on one sim card (dedicated slot) |
| SIM card | 2 slots (Dual-SIM) micro-SIM (3FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 150/50 Mbps | 150/50 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 | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/900/1700/1900/2100 | UMTS 850/900/2100 |
| Primary 4G network | LTE Cat4 700/800/850/900/1700/1800/1900/2100/2300/2600 (Bands 1,2,3,4,5,7,8,12,17,20,28,38,40) | LTE Cat4 (1, 3, 5, 7, 8, 28) |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE |
| Secondary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | GPRS, EDGE | GPRS, EDGE |
📷 Camera | ||
| Microsoft Lumia 640 XL (4G LTE) | LG K4 2017 (Dual X230K) | |
| Back camera (main camera) | 13 megapixels | 8 megapixels |
| Main camera resolution | 4128x3096 pixels | 3264x2448 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | HD (1280x720) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/2.0 (aperture) | f/2.6 (aperture) |
| Focal length | 28mm lens | feature not registered |
| Sensor size | 1/3" inches | feature not registered |
| Pixel size | feature not registered | feature not registered |
| 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 | Supported | Not supported |
| HDR | HDR photo only main camera | HDR photo on both cameras |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Microsoft Lumia 640 XL (4G LTE) | LG K4 2017 (Dual X230K) | |
| Front camera (secondary) | 5 megapixels | 5 megapixels |
| Front camera resolution | 2592x1944 pixels | 2560x1920 pixels |
| Video recording (secondary) | Full HD (1920x1080) | HD (1280x720) |
| Front flash | Not supported | Not supported |
| Focal aperture | feature not registered | f/2.7 (aperture) |
| 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 | ||
| Microsoft Lumia 640 XL (4G LTE) | LG K4 2017 (Dual X230K) | |
| Loudspeaker | Supported | Mono sound (not stereo) |
| Active noise cancellation | 2 microphones or more | Not supported |
| Radio | FM | FM (RDS) |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263, WMV | MP4, H.264, H.263, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+ | MP3, WAV, WMA, eAAC+ |
🔌 Connectivity | ||
| Microsoft Lumia 640 XL (4G LTE) | LG K4 2017 (Dual X230K) | |
| USB | MicroUSB 2.0 | MicroUSB 2.0 |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 4.0 + A2DP | 4.1 + A2DP |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot |
| DLNA | Supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, BeiDou | A-GPS, GeoTagging |
| NFC | Supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Microsoft Lumia 640 XL (4G LTE) | LG K4 2017 (Dual X230K) | |
| Sensors | Accelerometer Ambient light sensor Compass Proximity sensor | Accelerometer Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Microsoft Lumia 640 XL (4G LTE) | LG K4 2017 (Dual X230K) | |
| Battery type | Li-Ion: lithium-ion (Removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 3000 mAh | 2500 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | feature not registered | Not supported |
| Talk time autonomy | 23.7 hours | 3.2 hours |
| Standby | 936 hours (39 days) | 310 hours (12.9 days) |
➕ Other features | ||
| Microsoft Lumia 640 XL (4G LTE) | LG K4 2017 (Dual X230K) | |
| 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, White • Lumia Denim UI • Microsoft ClearBlack display • OneDrive 30GB • WiFi hotspot • Headset not included | • Colors: Black, Titan, Gold, Chocolate • Knock Code, Knock On • Quick Share, Quick Selfie |
☢️ Radiation rate | ||
| Microsoft Lumia 640 XL (4G LTE) | LG K4 2017 (Dual X230K) | |
| 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 |