LG G3 (D855 16GB) vs LG X Fast (Dual K600Y)

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Side by side comparison between LG G3 vs LG X Fast phones, differences, pros, cons and full specifications. What's the better?

11/15/2016 5:32 PM, updated: 9/13/2021 10:47 AM

Compare LG X Fast X LG G3 (D855 16GB) 06Points

Specifications Compare Models Pictures

5.5"
IPS+

1440x2392

13
MP

2.1mp

2GB
RAM

Quad-core

3000
mAh

(Removable)

11Points LG X Fast (Dual K600Y) Compare LG G3 X

Specifications Compare Models Pictures

5.5"
IPS

1440x2560

12.2
MP

8mp

3GB
RAM

Hexa-core

3000
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!

6 Advantages LG G3 (D855 16GB)	vs	11 Advantages LG X Fast (Dual K600Y)
+2.5GHz 32bit Quad-core5% More powerful processor, you can open your applications faster	vs	1.8GHz 64bit Hexa-core
+149 grams (5.22 ounces)5% Lighter	vs	156 grams (5.46 ounces)
+(back) 13MP6% Higher resolution main camera	vs	(back) 12.2MP
+Dual-LED flashAdvantage The Dual-LED flash helps in dark places or in low light	vs	LED flash
+OIS: Optical stabilizationAdvantage Image stabilization prevents blurry photos and helps in recording motion video	vs	EIS: Digital stabilization
+BSI sensorAdvantage The BSI sensor allows the entry of more light generating photos with more detail and brightness	vs	Not supported
2GB LPDDR3	vs	+3GB LPDDR350% More RAM memory. Typically more responsive and better for multitasking.
16GB (10GB available)	vs	+32GB (22GB available)120% More internal storage for applications and files
Until 128GB microSD, microSDXC	vs	+Until 256GB microSD, microSDXC100% More external storage for files using memory cards
1440x2392 pixels	vs	+1440x2560 pixels7% Higher resolution screen
508 PPI	vs	+534 PPI5% Crisper display of text, images and videos because it has more pixels per inch (ppi)
(front) 2.1MP	vs	+(front) 8MP3 times Higher resolution secondary camera to take pictures and selfies
Android 5.0 Lollipop	vs	+Android 6.0.1 MarshmallowAdvantage Android 6.0.1 Marshmallow is newer and safer
(4G LTE) 150 Mbps	vs	+(4G LTE-A) 450 Mbps2 times Faster for surfing the internet and download files
Not supported	vs	+Fingerprint sensorAdvantage Sensors help you use the device
1 slot (Single-SIM) (dedicated slot)	vs	+2 slots (Dual-SIM) (dedicated slot)Advantage You can have more mobile carriers/operators on the same device.
4.0 + A2DP	vs	+4.1 + A2DPAdvantage Bluetooth 4.1 + A2DP is newer and faster

32 Common items in both devices

8.9 millimeters (0.35 inches)

TFT Super IPS+ / TFT IPS LCD

16 million

5.5"

Only digital zoom

LDAF/PDAF: laser/phase detection autofocus / Autofocus

HDR photo/video only main camera / HDR photo only main camera

+25 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

📱 Model features
	LG G3 (D855 16GB)	LG X Fast (Dual K600Y)
Change model
Model	LG G3 (D855 16GB)	LG X Fast (Dual K600Y)
Other model names	LG G3 4G LTE D855 for Europe, LG Optimus G3, LG B2	LG X mach, LG fast K600Y, LG-K600Y, LGK600Y, LG X5
Country or region available	(Europe), (Global, International), South Africa, Australia, Brazil, Philippines, Hong Kong, India, Panama, Sri Lanka	Taiwan
Brand	LG	LG
Release date	6/1/2014	9/1/2016
Depth	8.9 millimeters (0.35 inches)	8.9 millimeters (0.35 inches)
Size (width x height)	74.6 x 146.3 millimeters (2.94 x 5.76 in)	76.5 x 149.1 millimeters (3.01 x 5.87 in)
Weight	149 grams (5.22 ounces)	156 grams (5.46 ounces)
Build, materials	feature not registered	feature not registered
Protection against water and others	Not supported	Not supported
📲 Display
	LG G3 (D855 16GB)	LG X Fast (Dual K600Y)
Display type	TFT Super IPS+	TFT IPS LCD
Screen size	5.5" inches	5.5" inches
Screen-to-body ratio	~79% (screen-to-body ratio)	~73.1% (screen-to-body ratio)
Display resolution	1440x2392 pixels	1440x2560 pixels
Touchscreen	Capacitive Multitouch 10-points	Capacitive Multitouch
Pixel density (dot pitch)	508 PPI	534 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 3	Gorilla Glass
Refresh rate	feature not registered	feature not registered
Display features	feature not registered	feature not registered
🤖 Operating System
	LG G3 (D855 16GB)	LG X Fast (Dual K600Y)
System version	Android 4.4.2 KitKat	Android 6.0.1 Marshmallow
Firmware update	Android 5.0 Lollipop	feature not registered
User Interface	feature not registered	feature not registered
⚙️ Processor
	LG G3 (D855 16GB)	LG X Fast (Dual K600Y)
Chipset	32bit: Qualcomm Snapdragon 801 MSM8974-AC (28nm)	64bit: Qualcomm Snapdragon 808 MSM8992 (20nm)
CPU	Quad-core, 1 processor: 4x 2.5GHz Krait 400 (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 330 578Mhz	Qualcomm Adreno 418
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	LG G3 (D855 16GB)	LG X Fast (Dual K600Y)
RAM memory	2GB LPDDR3	3GB LPDDR3
Internal storage	16GB (10GB available)	32GB (22GB available)
External storage	Until 128GB microSD, microSDXC (dedicated slot)	Until 256GB microSD, microSDXC (dedicated slot)
📶 Mobile networks
	LG G3 (D855 16GB)	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	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Primary 3G network	UMTS 850/900/1900/2100	UMTS 850/900/1900/2100
Primary 4G network	LTE Cat4 800/900/1800/2100/2600	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, UMTS, HSDPA, HSUPA, HSPA+, 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 G3 (D855 16GB)	LG X Fast (Dual K600Y)
Back camera (main camera)	13 megapixels	12.2 megapixels
Main camera resolution	4160x3120 pixels	4032x3024 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	4K UHD (3840x2160) 30 fps
Flash	Dual-LED flash	LED flash
Focal aperture	f/2.4 (aperture)	feature not registered
Focal length	29mm (lens)	feature not registered
Sensor size	1/3" inches	feature not registered
Pixel size	1.12µm pixel	1.55µm pixel
Autofocus	LDAF/PDAF: laser/phase detection autofocus	Autofocus
Touch focus	Supported	Supported
Image stabilization	OIS: Optical 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/video only main camera	HDR photo only main camera
Camera extras	feature not registered	feature not registered
📸 Front camera
	LG G3 (D855 16GB)	LG X Fast (Dual K600Y)
Front camera (secondary)	2.1 megapixels	8 megapixels
Front camera resolution	1920x1080 pixels	3264x2448 pixels
Video recording (secondary)	Full HD (1920x1080)	Full HD (1920x1080)
Front flash	Not supported	Not supported
Focal aperture	f/2.0 (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 G3 (D855 16GB)	LG X Fast (Dual K600Y)
Loudspeaker	Supported	Supported
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	FM (RDS)	FM
TV	Not supported	Not supported
Video formats	MP4, H.264, H.263, DivX, XviD, WMV	MP4, H.264, H.263, DivX, XviD, MKV
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, WAV, eAAC+, FLAC
🔌 Connectivity
	LG G3 (D855 16GB)	LG X Fast (Dual K600Y)
USB	MicroUSB 2.0	MicroUSB 2.0
Audio output	3.5mm jack	3.5mm jack
TV output	Micro-B USB SlimPort	Not supported
Bluetooth	4.0 + A2DP	4.1 + A2DP
WiFi	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) WiFi Direct, hotspot
DLNA	Supported	Supported
GPS	A-GPS, GeoTagging, GLONASS	A-GPS, GeoTagging, GLONASS
NFC	Supported	Supported
Infrared port	Supported	Not supported
🧭 Sensors
	LG G3 (D855 16GB)	LG X Fast (Dual K600Y)
Sensors	Accelerometer Ambient light sensor Compass Gyroscope Proximity sensor	Accelerometer Ambient light sensor Compass Fingerprint sensor Gyroscope Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	LG G3 (D855 16GB)	LG X Fast (Dual K600Y)
Battery type	Li-Ion: lithium-ion (Removable) BL-53YH	Li-Ion: lithium-ion (Removable)
Battery capacity	3000 mAh	3000 mAh
Charger, watts	Wired charging	Wired charging
Inductive / wireless charging	feature not registered	feature not registered
Talk time autonomy	20 hours	13 hours
Standby	500 hours (20.8 days)	300 hours (12.5 days)
➕ Other features
	LG G3 (D855 16GB)	LG X Fast (Dual K600Y)
Call control	Voice dialing, Voice recorder, Voice commands	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, White, Gold, Violet, Red • USB OTG On-The-Go 1.3 • Notification LED • Dolby mobile sound • 1W Speaker with Boost AMP • Knock Code, Quick Memo, QRemote • Plastic body • MiraCast • Wireless Charging	• Colors: Titan, White • USB OTG On-The-Go • LG AirDrive, KnockCode • Slow motion • Miracast • WiFi Dual-Band
☢️ Radiation rate
	LG G3 (D855 16GB)	LG X Fast (Dual K600Y)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	feature not registered
SAR 2W/kg (Europe, UK, etc.)	feature not registered	0.605W/kg (head), 1.1W/kg (body)