LG G Flex (F340S) vs LG K51S (K510EMW)

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Side by side comparison between LG G Flex vs LG K51S phones, differences, pros, cons and full specifications. What's the better?

7/8/2020 11:12 PM, updated: 8/6/2020 1:57 PM

Compare LG K51S X LG G Flex (F340S) 09Points

Specifications Compare Models Pictures

6"
POLED

720x1280

13
MP

2.1mp

2GB
RAM

Quad-core

3500
mAh

(Non removable)

19Points LG K51S (K510EMW) Compare LG G Flex X

Specifications Compare Models Pictures

6.55"
IPS

720x1600

32
MP

13mp

3GB
RAM

Octa-core

4000
mAh

(Non removable)

What's the better phone? LG K51S (K510EMW)

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!

9 Advantages LG G Flex (F340S)	vs	19 Advantages LG K51S (K510EMW)
+177 grams (6.2 ounces)10% Lighter	vs	194 grams (6.79 ounces)
+P-OLEDAdvantage P-OLED display is brighter and more vivid	vs	TFT IPS LCD
+4K UHD (3840x2160)3 times More image quality for recording videos with the primary camera	vs	Full HD (1920x1080)
+GyroscopeAdvantage Sensors help you use the device	vs	Not supported
+FM (RDS)Advantage The radio lets you listen to your songs and sports in general	vs	Not supported
+Digital TVAdvantage Watch your favorite TV shows anywhere	vs	Not supported
+802.11 a/b/g/n/ac [wifi5]Advantage WiFi 802.11 a/b/g/n/ac [wifi5] is newer and faster	vs	802.11 a/b/g/n [wifi4]
+MicroUSB 3.0Advantage Newer and faster USB version for transferring photos, mp3 or data.	vs	USB 2.0 Type-C, USB OTG On-The-Go
+Gorilla Glass 2Advantage Protection against scratches on the screen lets you carry your phone with your keys	vs	Not supported
2.26GHz 32bit Quad-core	vs	+2.3GHz 64bit Octa-core (12nm)30% More powerful processor, you can open your applications faster
2GB LPDDR3	vs	+3GB LPDDR350% More RAM memory. Typically more responsive and better for multitasking.
32GB (25GB available)	vs	+64GB (47GB available)88% More internal storage for applications and files
Not supported	vs	+Until 1TB microSD, microSDXCAdvantage More external storage for files using memory cards
8.7 millimeters (0.34 inches)	vs	+8.26 millimeters (0.33 inches)5% Thinner
720x1280 pixels	vs	+720x1600 pixels25% Higher resolution screen
245 PPI	vs	+268 PPI9% Crisper display of text, images and videos because it has more pixels per inch (ppi)
6"	vs	+6.55"9% Larger screen
(back) 13MP	vs	+(quad camera) 32MP + 5MP + 2MP + 2MP2 times Higher resolution main camera
HDR photo/video only main camera	vs	+HDR photo on both camerasAdvantage The HDR technology produced photos with more detail in dark areas
(front) 2.1MP	vs	+(front) 13MP5 times Higher resolution secondary camera to take pictures and selfies
Android 4.2.2 Jelly Bean	vs	+Android 9.0 PieAdvantage Android 9.0 Pie is newer and safer
(4G LTE) 150 Mbps	vs	+(4G LTE-A) 300 Mbps100% Faster for surfing the internet and download files
Not supported	vs	+Fingerprint sensor (rear-mounted)Advantage Sensors help you use the device
3500 mAh	vs	+4000 mAh14% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
1 slot (Single-SIM)	vs	+2 slots (Dual-SIM) (dedicated slot)Advantage You can have more mobile carriers/operators on the same device.
4.0 + A2DP	vs	+5.0 + A2DP/LEAdvantage Bluetooth 5.0 + A2DP/LE is newer and faster
MicroUSB 3.0	vs	+Type-CAdvantage Reversible connector, you can stick in a USB-C cable any which way; either side is up.
Not supported	vs	+MIL-STD-810G military certifiedAdvantage Protection against water allows you talk to your friends in the rain, for example

19 Common items in both devices

Plastic body, glass front

16 million

LED flash

Only digital zoom

Autofocus / PDAF: phase detection autofocus

(front) Full HD (1920x1080)

4G LTE / 4G LTE-A

+12 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 G Flex (F340S)	LG K51S (K510EMW)
Change model		Choose the model
Model	LG G Flex (F340S)	K51S (K510EMW)
Other model names	LG Flex F340S, LG-F340S	LG K51s LM-K510EMW, LMK510EMW (Dual-Sim + NFC)
Country or region available	South Korea	(Europe), (Global, International)
Brand	LG	LG
Release date	11/1/2013	4/1/2020
Depth	8.7 millimeters (0.34 inches)	8.26 millimeters (0.33 inches)
Size (width x height)	81.6 x 160.5 millimeters (3.21 x 6.32 in)	76.7 x 165.2 millimeters (3.02 x 6.5 in)
Weight	177 grams (6.2 ounces)	194 grams (6.79 ounces)
Build, materials	Plastic body, glass front	Plastic body, glass front
Protection against water and others	Not supported	MIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant.
📲 Display
	LG G Flex (F340S)	LG K51S (K510EMW)
Display type	P-OLED	TFT IPS LCD
Screen size	6" inches	6.55" inches
Screen-to-body ratio	~75.8% (screen-to-body ratio)	~81.7% (screen-to-body ratio)
Display resolution	720x1280 pixels	720x1600 pixels (20:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	245 PPI	268 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 2	Not supported
Refresh rate	feature not registered	60Hz
Display features	feature not registered	400nits[typ]
🤖 Operating System
	LG G Flex (F340S)	LG K51S (K510EMW)
System version	Android 4.2.2 Jelly Bean	Android 9.0 Pie
Firmware update	feature not registered	feature not registered
User Interface	feature not registered	feature not registered
⚙️ Processor
	LG G Flex (F340S)	LG K51S (K510EMW)
Chipset	32bit: Qualcomm Snapdragon 800 MSM8974A	64bit: MediaTek Helio P35 (MT6765) (12nm)
CPU	Quad-core, 1 processor: 4x 2.26GHz Krait 400 (Quad-core)	Octa-core, 2 processors: 4x 2.3GHz ARM Cortex-A53 (Quad-core) 4x 1.8GHz ARM Cortex-A53 (Quad-core)
GPU graphical controller	Qualcomm Adreno 330	PowerVR GE8320 MP2 (680MHz)
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	LG G Flex (F340S)	LG K51S (K510EMW)
RAM memory	2GB LPDDR3	3GB LPDDR3
Internal storage	32GB (25GB available)	64GB (47GB available) eMMC 5.1
External storage	Not supported	Until 1TB microSD, microSDXC (dedicated slot)
📶 Mobile networks
	LG G Flex (F340S)	LG K51S (K510EMW)
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	300/50 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 850/1900/2100	UMTS 850/900/1900/2100
Primary 4G network	LTE Cat4 850/1800/2100	LTE Cat6 (1, 3, 7, 8, 20) TD-LTE (38)
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 G Flex (F340S)	LG K51S (K510EMW)
Back camera (main camera)	13 megapixels	(quad camera) 32 megapixels 5MP ultrawide f/2.216mm1.12μm115° 2MP macro f/2.422mm1.75μm88.6° 2MP depth f/2.41.75μm
Main camera resolution	4128x3096 pixels	6528x4896 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	Full HD (1920x1080) 30 fps
Flash	LED flash	LED flash
Focal aperture	feature not registered	f/1.8 (aperture)
Focal length	feature not registered	24mm lens
Sensor size	feature not registered	feature not registered
Pixel size	feature not registered	0.8µm pixel
Autofocus	Autofocus	PDAF: phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	feature not registered	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 on both cameras
Camera extras	feature not registered	feature not registered
📸 Front camera
	LG G Flex (F340S)	LG K51S (K510EMW)
Front camera (secondary)	2.1 megapixels	13 megapixels
Front camera resolution	1920x1080 pixels	4128x3096 pixels
Video recording (secondary)	Full HD (1920x1080)	Full HD (1920x1080)
Front flash	Not supported	Not supported
Focal aperture	feature not registered	f/2.0 (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
	LG G Flex (F340S)	LG K51S (K510EMW)
Loudspeaker	Supported	Supported
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	FM (RDS)	Not supported
TV	Digital TV	Not supported
Video formats	MP4, DivX, XviD, H.264, H.263, WMV	MP4, H.265, H.264, H.263, XviD, MKV
Audio formats	MP3, WAV, WMA, eAAC+, AC3, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	LG G Flex (F340S)	LG K51S (K510EMW)
USB	MicroUSB 3.0	USB 2.0 Type-C, USB OTG On-The-Go
Audio output	3.5mm jack	3.5mm jack
TV output	Micro-B USB SlimPort	Not supported
Bluetooth	4.0 + 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 [wifi4] (2.4GHz, 5GHz) WiFi Direct, hotspot
DLNA	Supported	Supported
GPS	A-GPS, GeoTagging, GLONASS	A-GPS, GeoTagging
NFC	Supported	Supported
Infrared port	Supported	Not supported
🧭 Sensors
	LG G Flex (F340S)	LG K51S (K510EMW)
Sensors	Accelerometer Ambient light sensor Compass Gyroscope Proximity sensor	Accelerometer Ambient light sensor Compass Fingerprint sensor (rear-mounted) Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	LG G Flex (F340S)	LG K51S (K510EMW)
Battery type	LiPo: li-ion polymer (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	3500 mAh	4000 mAh
Charger, watts	Wired charging	10W (5V/2A) Wired charging
Inductive / wireless charging	feature not registered	Not supported
Talk time autonomy	15 hours	10.5 hours
Standby	700 hours (29.2 days)	370 hours (15.4 days)
➕ Other features
	LG G Flex (F340S)	LG K51S (K510EMW)
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	External retractable antenna	Internal antenna
Qwerty physical keyboard	Not supported	Not supported
Miscellaneous	• Colors: Titan silver • Curved body and display • Self-healing back panel coating • Dolby mobile sound enhancement • Java framework	• Colors: Titanium, Blue, Pink/Red • Silicone case included • Google Assistant (dedicated side button) • DTS:X 3D audio
☢️ Radiation rate
	LG G Flex (F340S)	LG K51S (K510EMW)
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