LG X Fast (Dual K600Y) vs Samsung Galaxy S21 FE (SM-G990E/DS 128GB/6GB)

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Side by side comparison between LG X Fast vs Samsung Galaxy S21 FE phones, differences, pros, cons and full specifications. What's the better?

1/19/2022 5:13 PM, updated: 11/21/2023 5:15 AM

Compare Samsung Galaxy S21 FE X LG X Fast (Dual K600Y) 07Points

Specifications Compare Models Pictures

5.5"
IPS

1440x2560

12.2
MP

8mp

3GB
RAM

Hexa-core

3000
mAh

(Removable)

23Points Samsung Galaxy S21 FE (SM-G990E/DS 128GB/6GB) Compare LG X Fast X

Specifications Compare Models Pictures

6.4"
AMOLED

1080x2400

12.2
MP

32mp

6GB
RAM

Octa-core

4500
mAh

(Non removable)

What's the better phone? Samsung Galaxy S21 FE (SM-G990E/DS 128GB/6GB)

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!

7 Advantages LG X Fast (Dual K600Y)	vs	23 Advantages Samsung Galaxy S21 FE (SM-G990E/DS 128GB/6GB)
+Until 256GB microSD, microSDXCAdvantage More external storage for files using memory cards	vs	Not supported
+156 grams (5.46 ounces)13% Lighter	vs	177 grams (6.2 ounces)
+1440x2560 pixels42% Higher resolution screen	vs	1080x2400 pixels
+534 PPI30% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	411 PPI
+Li-Ion: lithium-ion (Removable)Advantage Removable battery can be replaced easily	vs	LiPo: li-ion polymer (Non removable)
+3.5mm jackAdvantage Headsets with 3.5mm Jack size are more common and easy to find in stores	vs	Type-C reversible connector
+FMAdvantage The radio lets you listen to your songs and sports in general	vs	Not supported
1.8GHz 64bit Hexa-core	vs	+2.9GHz 64bit Octa-core (5nm)63% More powerful processor, you can open your applications faster
3GB LPDDR3	vs	+6GB LPDDR5100% More RAM memory. Typically more responsive and better for multitasking.
32GB (22GB available)	vs	+128GB (97GB available)3 times More internal storage for applications and files
8.9 millimeters (0.35 inches)	vs	+7.9 millimeters (0.31 inches)13% Thinner
TFT IPS LCD	vs	+Dynamic AMOLEDAdvantage Dynamic AMOLED display is brighter and more vivid
5.5"	vs	+6.4"16% Larger screen
(back) 12.2MP	vs	+(triple camera) 12.2MP + 12MP + 8MP164% Higher resolution main camera
Only digital zoom	vs	+Digital and optical zoomAdvantage The zoom allows for better focus and approach to take pictures
EIS: Digital stabilization	vs	+OIS: Optical stabilizationAdvantage Image stabilization prevents blurry photos and helps in recording motion video
HDR photo only main camera	vs	+HDR photo/video on both camerasAdvantage The HDR technology produced photos with more detail in dark areas
(front) 8MP	vs	+(front) 32MP3 times Higher resolution secondary camera to take pictures and selfies
(front) Full HD (1920x1080)	vs	+(front) 4K UHD (3840x2160)3 times More image quality for recording videos with the secondary camera
Android 6.0.1 Marshmallow	vs	+Android 14Advantage Android 14 is newer and safer
4G LTE-A	vs	+5G SA/NSAAdvantage The 5G SA/NSA network is newer and faster
(4G LTE-A) 450 Mbps	vs	+(5G SA/NSA) 2000 Mbps3 times Faster for surfing the internet and download files
Not supported	vs	+BarometerAdvantage Sensors help you use the device
Not supported	vs	+Face unlockAdvantage Sensors help you use the device
3000 mAh	vs	+4500 mAh50% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
802.11 a/b/g/n/ac [wifi5]	vs	+802.11 a/b/g/n/ac/ax [wifi6]Advantage WiFi 802.11 a/b/g/n/ac/ax [wifi6] is newer and faster
4.1 + A2DP	vs	+5.0 + A2DP/LEAdvantage Bluetooth 5.0 + A2DP/LE is newer and faster
MicroUSB 2.0	vs	+USB 3.2 Type-C, USB OTG On-The-GoAdvantage Newer and faster USB version for transferring photos, mp3 or data.
MicroUSB 2.0	vs	+Type-CAdvantage Reversible connector, you can stick in a USB-C cable any which way; either side is up.
Not supported	vs	+IP68 certifiedAdvantage Protection against water allows you talk to your friends in the rain, for example

18 Common items in both devices

16 million

LED flash

Autofocus / PDAF: phase detection autofocus

4K UHD (3840x2160)

Capacitive

Multitouch

Accelerometer

+11 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 X Fast (Dual K600Y)	Galaxy S21 FE (SM-G990E/DS 128GB/6GB)
Change model		Choose the model
Model	LG X Fast (Dual K600Y)	Galaxy S21 FE (SM-G990E/DS 128GB/6GB)
Other model names	LG X mach, LG fast K600Y, LG-K600Y, LGK600Y, LG X5	Galaxy S21 FE 5G SM-G990B/Dual-SIM (Exynos)
Country or region available	Taiwan	(Latin America), Brazil
Brand	LG	Samsung
Release date	9/1/2016	1/7/2022, Announced: 1/4/2022
Depth	8.9 millimeters (0.35 inches)	7.9 millimeters (0.31 inches)
Size (width x height)	76.5 x 149.1 millimeters (3.01 x 5.87 in)	74.5 x 155.7 millimeters (2.93 x 6.13 in)
Weight	156 grams (5.46 ounces)	177 grams (6.2 ounces)
Build, materials	feature not registered	Aluminum body, glass front, plastic back
Protection against water and others	Not supported	IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant
📲 Display
	LG X Fast (Dual K600Y)	Galaxy S21 FE (SM-G990E/DS 128GB/6GB)
Display type	TFT IPS LCD	Dynamic AMOLED
Screen size	5.5" inches	6.4" inches
Screen-to-body ratio	~73.1% (screen-to-body ratio)	~85.3% (screen-to-body ratio)
Display resolution	1440x2560 pixels	1080x2400 pixels (20:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch 10-points
Pixel density (dot pitch)	534 PPI	411 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass	Gorilla Glass Victus
Refresh rate	feature not registered	120Hz
Display features	feature not registered	1300nits[peak] HDR10+ Always-On Display
🤖 Operating System
	LG X Fast (Dual K600Y)	Galaxy S21 FE (SM-G990E/DS 128GB/6GB)
System version	Android 6.0.1 Marshmallow	Android 12
Firmware update	feature not registered	Android 14
User Interface	feature not registered	One UI 4.1 / 5.1 / 6.0
⚙️ Processor
	LG X Fast (Dual K600Y)	Galaxy S21 FE (SM-G990E/DS 128GB/6GB)
Chipset	64bit: Qualcomm Snapdragon 808 MSM8992 (20nm)	64bit: Samsung Exynos 2100 (5nm)
CPU	Hexa-core, 2 processors: 2x 1.8GHz ARM Cortex-A57 (Dual-core) 4x 1.4GHz ARM Cortex-A53 (Quad-core)	Octa-core, 3 processors: 1x 2.9GHz ARM Cortex-X1 (Single-core) 3x 2.8GHz ARM Cortex-A78 (Triple-core) 4x 2.2GHz ARM Cortex-A55 (Quad-core)
GPU graphical controller	Qualcomm Adreno 418	ARM Mali-G78 MP14 (854MHz)
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	LG X Fast (Dual K600Y)	Galaxy S21 FE (SM-G990E/DS 128GB/6GB)
RAM memory	3GB LPDDR3	6GB LPDDR5
Internal storage	32GB (22GB available)	128GB (97GB available) UFS 3.1
External storage	Until 256GB microSD, microSDXC (dedicated slot)	Not supported
📶 Mobile networks
	LG X Fast (Dual K600Y)	Galaxy S21 FE (SM-G990E/DS 128GB/6GB)
Dual-SIM	Dual-SIM Standby - Call active on one sim card (dedicated slot)	Dual-SIM Standby - Call active on one sim card
SIM card	2 slots (Dual-SIM) nano-SIM (4FF)	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum Download / Upload	450/50 Mbps	2000/1024 Mbps
Network technology	2G, 3G, 4G	2G, 3G, 4G, 5G
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 850/900/1700/1900/2100
Primary 4G network	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)	LTE Cat20 (1, 3, 3, 4, 5, 7, 8, 12, 20, 28) TD-LTE (34, 38, 39, 40, 41) VoLTE
Primary 5G network	Not supported	SA/NSA/Sub6 (1, 3, 5, 8, 28, 41, 78, 79)
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA
Secondary 2G network	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Secondary 3G network	Not supported	UMTS 850/900/1700/1900/2100
Secondary 4G network	Not supported	LTE Cat20 (1, 3, 3, 4, 5, 7, 8, 12, 20, 28) TD-LTE (34, 38, 39, 40, 41) VoLTE
Secondary data network	GPRS, EDGE	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA
📷 Camera
	LG X Fast (Dual K600Y)	Galaxy S21 FE (SM-G990E/DS 128GB/6GB)
Back camera (main camera)	12.2 megapixels	(triple camera) 12.2 megapixels 12MP ultrawide f/2.2123°13mm1/3"1.12µm 8MP telephoto f/2.476mm1/4.5"1.0µmPDAFOIS3x-optical-zoom
Main camera resolution	4032x3024 pixels	4032x3024 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	4K UHD (3840x2160) 60 fps
Flash	LED flash	LED flash
Focal aperture	feature not registered	f/1.8 (aperture)
Focal length	feature not registered	26mm lens
Sensor size	feature not registered	1/1.76" inches
Pixel size	1.55µm pixel	1.8µm pixel
Autofocus	Autofocus	PDAF: phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	EIS: Digital stabilization	OIS: Optical stabilization
Zoom	Only digital zoom	Digital and optical zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Not supported	Supported
HDR	HDR photo only main camera	HDR photo/video on both cameras
Camera extras	feature not registered	4K@30/60fps 1080p@30/60fps 1080p@240fps (slow motion) 720p@960fps (slow motion)
📸 Front camera
	LG X Fast (Dual K600Y)	Galaxy S21 FE (SM-G990E/DS 128GB/6GB)
Front camera (secondary)	8 megapixels	32 megapixels
Front camera resolution	3264x2448 pixels	6528x4896 pixels
Video recording (secondary)	Full HD (1920x1080)	4K UHD (3840x2160)
Front flash	Not supported	Not supported
Focal aperture	feature not registered	f/2.2 (aperture)
Focal length	feature not registered	26mm lens
Sensor size	feature not registered	1/2.74" inches
Pixel size	feature not registered	0.8µm pixel
🔉 Sound and multimedia
	LG X Fast (Dual K600Y)	Galaxy S21 FE (SM-G990E/DS 128GB/6GB)
Loudspeaker	Supported	Stereo sound 32-bit/384kHz Dolby Atmos Tuned by AKG
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	FM	Not supported
TV	Not supported	Not supported
Video formats	MP4, H.264, H.263, DivX, XviD, MKV	MP4, H.265, H.264, H.263, XviD, MKV
Audio formats	MP3, WAV, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	LG X Fast (Dual K600Y)	Galaxy S21 FE (SM-G990E/DS 128GB/6GB)
USB	MicroUSB 2.0	USB 3.2 Type-C, USB OTG On-The-Go
Audio output	3.5mm jack	Type-C reversible connector
TV output	Not supported	USB Type-C SlimPort®
Bluetooth	4.1 + A2DP	5.0 + A2DP/LE
WiFi	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) WiFi Direct, hotspot	802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot
DLNA	Supported	Supported
GPS	A-GPS, GeoTagging, GLONASS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
NFC	Supported	Supported
Infrared port	Not supported	Not supported
🧭 Sensors
	LG X Fast (Dual K600Y)	Galaxy S21 FE (SM-G990E/DS 128GB/6GB)
Sensors	Accelerometer Ambient light sensor Compass Fingerprint sensor Gyroscope Proximity sensor	Accelerometer Ambient light sensor Barometer Compass Face unlock Fingerprint sensor (under display) Gyroscope Hall effect Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	LG X Fast (Dual K600Y)	Galaxy S21 FE (SM-G990E/DS 128GB/6GB)
Battery type	Li-Ion: lithium-ion (Removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	3000 mAh	4500 mAh
Charger, watts	Wired charging	25W Wired fast charging Reverse charging by cable USB Power Delivery 3.0
Inductive / wireless charging	feature not registered	15W Qi wireless charging 4.5W Reverse wireless charging
Talk time autonomy	13 hours	feature not registered
Standby	300 hours (12.5 days)	feature not registered
➕ Other features
	LG X Fast (Dual K600Y)	Galaxy S21 FE (SM-G990E/DS 128GB/6GB)
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: Titan, White • USB OTG On-The-Go • LG AirDrive, KnockCode • Slow motion • Miracast • WiFi Dual-Band	• Colors: Graphite, White, Lavender, Olive
☢️ Radiation rate
	LG X Fast (Dual K600Y)	Galaxy S21 FE (SM-G990E/DS 128GB/6GB)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	0.65W/kg (head), 1.19W/kg (body)
SAR 2W/kg (Europe, UK, etc.)	0.605W/kg (head), 1.1W/kg (body)	0.93W/kg (head), 1.319W/kg (body)