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LG X Fast (Dual K600Y) vs LG G4 (Dual H818N)

Side by side comparison between LG X Fast vs LG G4 phones, differences, pros, cons and full specifications. What's the better?

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Compare LG G4 X LG X Fast (Dual K600Y) 04Points
5.5"
IPS

1440x2560

12.2
MP

8mp

3GB
RAM

Hexa-core

3000
mAh

(Removable)

vs
06Points LG G4 (Dual H818N) Compare LG X Fast X
5.5"
IPS

1440x2560

16
MP

8mp

3GB
RAM

Hexa-core

3000
mAh

(Removable)

What's the better phone? LG G4 (Dual H818N)

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!


39 Common items in both devices
1.8GHz 64bit Hexa-core
3GB LPDDR3
TFT IPS LCD
16 million
1440x2560 pixels
534 PPI
5.5"
+32 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 X Fast (Dual K600Y)LG G4 (Dual H818N)
Change model 
ModelLG X Fast (Dual K600Y)LG G4 (Dual H818N)
Other model namesLG X mach, LG fast K600Y, LG-K600Y, LGK600Y, LG X5LG G4 Dual-SIM H818N, LG-H818N, LG P1
Country or region availableTaiwan
Taiwan
ChinaHong KongIndia
China, Hong Kong, India
BrandLGLG
Release date9/1/20165/1/2015, Announced: 4/28/2015
Depth8.9 millimeters (0.35 inches)9.8 millimeters (0.39 inches)
Size (width x height)76.5 x 149.1 millimeters (3.01 x 5.87 in)76.1 x 148.9 millimeters (3 x 5.86 in)
Weight156 grams (5.46 ounces)155 grams (5.43 ounces)
Build, materialsfeature not registeredPlastic body, glass front
Protection against water and othersNot supportedNot supported

📲 Display

LG X Fast (Dual K600Y)LG G4 (Dual H818N)
Display typeTFT IPS LCDTFT IPS LCD
Screen size5.5" inches5.5" inches
Screen-to-body ratio~73.1% (screen-to-body ratio)~73.6% (screen-to-body ratio)
Display resolution1440x2560 pixels1440x2560 pixels (16:9)
TouchscreenCapacitive MultitouchCapacitive Multitouch
Pixel density (dot pitch)534 PPI534 PPI
Colors16 million16 million
Scratch-resistant glassGorilla GlassGorilla Glass 3
Refresh ratefeature not registered60Hz
Display featuresfeature not registeredNot supported

🤖 Operating System

LG X Fast (Dual K600Y)LG G4 (Dual H818N)
System versionAndroid 6.0.1 MarshmallowAndroid 5.1 Lollipop
Firmware updatefeature not registeredAndroid 7.0 Nougat
User Interfacefeature not registeredLG UX 4.0 UI

⚙️ Processor

LG X Fast (Dual K600Y)LG G4 (Dual H818N)
Chipset64bit: Qualcomm Snapdragon 808 MSM8992 (20nm)64bit: Qualcomm Snapdragon 808 (MSM8992) (20nm)
CPUHexa-core, 2 processors:
2x 1.8GHz ARM Cortex-A57 (Dual-core)
4x 1.4GHz ARM Cortex-A53 (Quad-core)
Hexa-core, 2 processors:
2x 1.8GHz ARM Cortex-A57 (Dual-core)
4x 1.4GHz ARM Cortex-A53 (Quad-core)
GPU graphical controllerQualcomm Adreno 418Qualcomm Adreno 418 (600MHz)
Performance (benchmark)feature not registeredBasemark OS II: 1584 (v2)

💽 Memory and storage

LG X Fast (Dual K600Y)LG G4 (Dual H818N)
RAM memory3GB LPDDR33GB LPDDR3
Internal storage32GB (22GB available)32GB (25GB available)
eMMC 5.0
External storageUntil 256GB microSD, microSDXC
(dedicated slot)
Until 128GB microSD, microSDXC
(dedicated slot)

📶 Mobile networks

LG X Fast (Dual K600Y)LG G4 (Dual H818N)
Dual-SIMDual-SIM Standby - Call active on one sim card
(dedicated slot)
Dual-SIM Standby - Call active on one sim card
(dedicated slot)
SIM card2 slots (Dual-SIM)
nano-SIM (4FF)
2 slots (Dual-SIM)
micro-SIM (3FF)
Maximum Download / Upload450/50 Mbps300/50 Mbps
Network technology2G, 3G, 4G2G, 3G, 4G
Frequency, bands Expand band details Collapse details
GSM MHz bandQuad-Band 850/900/1800/1900Quad-Band 850/900/1800/1900
Primary 2G networkGSM 850/900/1800/1900GSM 850/900/1800/1900
Primary 3G networkUMTS 850/900/1900/2100TD-SCDMA 1900/2000
UMTS 850/900/1900/2100
Primary 4G networkLTE 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)
LTE Cat6 (1, 3, 7)
TD-LTE (38, 39, 40, 41)
Primary 5G networkNot supportedNot supported
Primary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-AGPRS, EDGE, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
Secondary 2G networkGSM 850/900/1800/1900GSM 850/900/1800/1900
Secondary 3G networkNot supportedUMTS 850/900/1900/2100
Secondary 4G networkNot supportedLTE Cat6 (1, 3, 7)
TD-LTE (38, 39, 40, 41)
Secondary data networkGPRS, EDGEGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A

📷 Camera

LG X Fast (Dual K600Y)LG G4 (Dual H818N)
Back camera (main camera)12.2 megapixels16 megapixels
Main camera resolution4032x3024 pixels5312x2988 pixels
Video recording (primary)4K UHD (3840x2160) 30 fps4K UHD (3840x2160) 30 fps
FlashLED flashLED flash
Focal aperturefeature not registeredf/1.8 (aperture)
Focal lengthfeature not registered28mm (lens)
Sensor sizefeature not registered1/2.6" inches
Pixel size1.55µm pixel1.12µm pixel
AutofocusAutofocusLDAF: laser detection autofocus
Touch focusSupportedSupported
Image stabilizationEIS: Digital stabilizationOIS (3-axis): Optical stabilization
ZoomOnly digital zoomOnly digital zoom
Face/smile detectionFace detection, Smile detectionFace detection, Smile detection
BSI sensorNot supportedNot supported
HDRHDR photo only main cameraHDR photo/video only main camera
Camera extrasfeature not registered4K@30fps
1080p@30fps

📸 Front camera

LG X Fast (Dual K600Y)LG G4 (Dual H818N)
Front camera (secondary)8 megapixels8 megapixels
Front camera resolution3264x2448 pixels3264x2448 pixels
Video recording (secondary)Full HD (1920x1080)Full HD (1920x1080)
Front flashNot supportedNot supported
Focal aperturefeature not registeredf/2.0 (aperture)
Focal lengthfeature not registeredfeature not registered
Sensor sizefeature not registered1/4" inches
Pixel sizefeature not registered1.12µm pixel

🔉 Sound and multimedia

LG X Fast (Dual K600Y)LG G4 (Dual H818N)
LoudspeakerSupportedMono sound (not stereo)
24-bit/192kHz
Active noise cancellation2 microphones or more2 microphones or more
RadioFMFM (RDS)
TVNot supportedNot supported
Video formatsMP4, H.264, H.263, DivX, XviD, MKVMP4, H.264, H.263, DivX, XviD, WMV
Audio formatsMP3, WAV, eAAC+, FLACMP3, WAV, WMA, eAAC+, FLAC

🔌 Connectivity

LG X Fast (Dual K600Y)LG G4 (Dual H818N)
USBMicroUSB 2.0MicroUSB 2.0, USB OTG On-The-Go
Audio output3.5mm jack3.5mm jack
TV outputNot supportedMicro-B USB SlimPort
Bluetooth4.1 + A2DP4.1 + A2DP
WiFi802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz)
WiFi Direct, hotspot
802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO
WiFi Direct, hotspot
DLNASupportedSupported
GPSA-GPS, GeoTagging, GLONASSA-GPS, GeoTagging, GLONASS
NFCSupportedSupported
Infrared portNot supportedSupported

🧭 Sensors

LG X Fast (Dual K600Y)LG G4 (Dual H818N)
SensorsAccelerometer
Ambient light sensor
Compass
Fingerprint sensor
Gyroscope
Proximity sensor
Accelerometer
Ambient light sensor
Barometer
Compass
Gyroscope
Proximity sensor
Vibrating alertSupportedSupported

🔋 Battery

LG X Fast (Dual K600Y)LG G4 (Dual H818N)
Battery typeLi-Ion: lithium-ion (Removable)Li-Ion: lithium-ion (Removable)
Battery capacity3000 mAh3000 mAh
Charger, wattsWired charging18W Wired fast charging
Quick Charge 2
Inductive / wireless chargingfeature not registeredNot supported
Talk time autonomy13 hours12 hours
Standby300 hours (12.5 days)315 hours (13.1 days)

➕ Other features

LG X Fast (Dual K600Y)LG G4 (Dual H818N)
Call controlVoice dialing, Voice recorder, Voice commandsVoice dialing, Voice recorder
MessagingSMS (T9), MMS, E-mail, Push mailSMS (T9), MMS, E-mail, Push mail
Hands-free callingSupportedSupported
Video callingSupportedSupported
RingtonesPolyphonic and customizedPolyphonic and customized
Web browserHTML, XHTML, HTML5HTML, XHTML, HTML5
AntennaInternal antennaInternal antenna
Qwerty physical keyboardNot supportedNot supported
Miscellaneous• Colors: Titan, White
• USB OTG On-The-Go
• LG AirDrive, KnockCode
• Slow motion
• Miracast
• WiFi Dual-Band
• Colors: Grey, White, Gold, Leather Black, Leather Brown, Leather Red
• Knock Code
• Quick Remote

☢️ Radiation rate

LG X Fast (Dual K600Y)LG G4 (Dual H818N)
SAR 1.6W/kg (USA, Mexico, etc.)feature not registeredfeature not registered
SAR 2W/kg (Europe, UK, etc.)0.605W/kg (head), 1.1W/kg (body)0.62W/kg (head)
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