LG K4 (K121) vs Samsung Galaxy J2 Pro 2018 (SM-J250M/DS)

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Side by side comparison between LG K4 vs Samsung Galaxy J2 Pro (2018) phones, differences, pros, cons and full specifications. What's the better?

5/6/2018 5:36 AM, updated: 5/2/2020 12:39 PM

Compare Samsung Galaxy J2 Pro (2018) X LG K4 (K121) 01Point

Specifications Compare Models Pictures

4.5"
IPS

480x854

5
MP

2mp

1GB
RAM

Quad-core

1940
mAh

(Removable)

21Points Samsung Galaxy J2 Pro 2018 (SM-J250M/DS) Compare LG K4 X

Specifications Compare Models Pictures

5"
AMOLED

540x960

8
MP

5mp

1.5GB
RAM

Quad-core

2600
mAh

(Removable)

What's the better phone? Samsung Galaxy J2 Pro 2018 (SM-J250M/DS)

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!

1 Advantage LG K4 (K121)	vs	21 Advantages Samsung Galaxy J2 Pro 2018 (SM-J250M/DS)
+113 grams (3.96 ounces)35% Lighter	vs	153 grams (5.36 ounces)
1.1GHz 32bit Quad-core	vs	+1.4GHz 64bit Quad-core55% More powerful processor, you can open your applications faster
1GB LPDDR3	vs	+1.5GB LPDDR350% More RAM memory. Typically more responsive and better for multitasking.
8GB (3.88GB available)	vs	+16GB (10GB available)158% More internal storage for applications and files
Until 32GB microSD, microSDHC	vs	+Until 256GB microSD, microSDXC7 times More external storage for files using memory cards
8.9 millimeters (0.35 inches)	vs	+8.4 millimeters (0.33 inches)6% Thinner
Plastic body, glass front	vs	+Aluminum body, glass front, plastic backAdvantage More resistant material
TFT IPS LCD	vs	+Super AMOLEDAdvantage Super AMOLED display is brighter and more vivid
480x854 pixels	vs	+540x960 pixels26% Higher resolution screen
218 PPI	vs	+220 PPI1% Crisper display of text, images and videos because it has more pixels per inch (ppi)
4.5"	vs	+5"11% Larger screen
(back) 5MP	vs	+(back) 8MP59% Higher resolution main camera
LED flash	vs	+LED flash on both camerasAdvantage The LED flash on both cameras helps in dark places or in low light
Not supported	vs	+HDR photo only main cameraAdvantage The HDR technology produced photos with more detail in dark areas
f/2.8 (aperture)	vs	+f/2.2 (aperture)27% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
(front) 2MP	vs	+(front) 5MP156% Higher resolution secondary camera to take pictures and selfies
HD (1280x720)	vs	+Full HD (1920x1080)125% More image quality for recording videos with the primary camera
Android 5.1.1 Lollipop	vs	+Android 8.0 OreoAdvantage Android 8.0 Oreo is newer and safer
1940 mAh	vs	+2600 mAh34% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
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.
4.1 + A2DP	vs	+4.2 + A2DPAdvantage Bluetooth 4.2 + A2DP is newer and faster
Not supported	vs	+Gorilla Glass 3Advantage Protection against scratches on the screen lets you carry your phone with your keys

19 Common items in both devices

16 million

Only digital zoom

Autofocus

EIS: Digital stabilization

(front) HD (1280x720)

4G LTE

150 Mbps

+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 K4 (K121)	Galaxy J2 Pro 2018 (SM-J250M/DS)
Change model		Choose the model
Model	LG K4 (K121)	Galaxy J2 Pro 2018 (SM-J250M/DS)
Other model names	(Bell, Rogers, Telus) LG K4 K121, LGK121	Galaxy J2 Pro J250M/Dual-Sim
Country or region available	Canada	(Latin America), Brazil
Brand	LG	Samsung
Release date	2/1/2016	1/1/2018
Depth	8.9 millimeters (0.35 inches)	8.4 millimeters (0.33 inches)
Size (width x height)	66.7 x 131.9 millimeters (2.63 x 5.19 in)	72.3 x 143.8 millimeters (2.85 x 5.66 in)
Weight	113 grams (3.96 ounces)	153 grams (5.36 ounces)
Build, materials	Plastic body, glass front	Aluminum body, glass front, plastic back
Protection against water and others	Not supported	Not supported
📲 Display
	LG K4 (K121)	Galaxy J2 Pro 2018 (SM-J250M/DS)
Display type	TFT IPS LCD	Super AMOLED
Screen size	4.5" inches	5" inches
Screen-to-body ratio	~63.4% (screen-to-body ratio)	~66.3% (screen-to-body ratio)
Display resolution	480x854 pixels	540x960 pixels
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	218 PPI	220 PPI
Colors	16 million	16 million
Scratch-resistant glass	Not supported	Gorilla Glass 3
Refresh rate	feature not registered	feature not registered
Display features	feature not registered	feature not registered
🤖 Operating System
	LG K4 (K121)	Galaxy J2 Pro 2018 (SM-J250M/DS)
System version	Android 5.1.1 Lollipop	Android 7.1.1 Nougat
Firmware update	feature not registered	Android 8.0 Oreo
User Interface	feature not registered	feature not registered
⚙️ Processor
	LG K4 (K121)	Galaxy J2 Pro 2018 (SM-J250M/DS)
Chipset	32bit: Qualcomm Snapdragon 210 MSM8909 (28nm)	64bit: Qualcomm Snapdragon 425 MSM8917 (28nm)
CPU	Quad-core, 1 processor: 4x 1.1GHz ARM Cortex-A7 (Quad-core)	Quad-core, 1 processor: 4x 1.4GHz ARM Cortex-A53 (Quad-core)
GPU graphical controller	Qualcomm Adreno 304	Qualcomm Adreno 308 500Mhz
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	LG K4 (K121)	Galaxy J2 Pro 2018 (SM-J250M/DS)
RAM memory	1GB LPDDR3	1.5GB LPDDR3
Internal storage	8GB (3.88GB available)	16GB (10GB available) eMMC 5.1
External storage	Until 32GB microSD, microSDHC (dedicated slot)	Until 256GB microSD, microSDXC (dedicated slot)
📶 Mobile networks
	LG K4 (K121)	Galaxy J2 Pro 2018 (SM-J250M/DS)
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) micro-SIM (3FF)
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 850/1700/1900	UMTS 850/900/1700/1900/2100
Primary 4G network	LTE Cat4 (Bands 2, 4, 7, 17)	LTE Cat4 (Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 28, 66)
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	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 K4 (K121)	Galaxy J2 Pro 2018 (SM-J250M/DS)
Back camera (main camera)	5 megapixels	8 megapixels
Main camera resolution	2592x1944 pixels	3264x2448 pixels
Video recording (primary)	HD (1280x720) 30 fps	Full HD (1920x1080) 30 fps
Flash	LED flash	LED flash on both cameras
Focal aperture	f/2.8 (aperture)	f/2.2 (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
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	Not supported	Not supported
HDR	Not supported	HDR photo only main camera
Camera extras	feature not registered	feature not registered
📸 Front camera
	LG K4 (K121)	Galaxy J2 Pro 2018 (SM-J250M/DS)
Front camera (secondary)	2 megapixels	5 megapixels
Front camera resolution	1600x1200 pixels	2560x1920 pixels
Video recording (secondary)	HD (1280x720)	HD (1280x720)
Front flash	Not supported	LED
Focal aperture	f/2.8 (aperture)	f/2.2 (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 K4 (K121)	Galaxy J2 Pro 2018 (SM-J250M/DS)
Loudspeaker	Supported	Supported
Active noise cancellation	Not supported	Not supported
Radio	FM (RDS)	FM
TV	Not supported	Not supported
Video formats	MP4, H.264, H.263, XviD	MP4, H.265, H.264, H.263
Audio formats	MP3, WAV, eAAC+, FLAC	MP3, OGG, eAAC+, FLAC
🔌 Connectivity
	LG K4 (K121)	Galaxy J2 Pro 2018 (SM-J250M/DS)
USB	MicroUSB 2.0	MicroUSB 2.0, USB OTG On-The-Go
Audio output	3.5mm jack	3.5mm jack
TV output	Not supported	Not supported
Bluetooth	4.1 + A2DP	4.2 + A2DP
WiFi	802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot	802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot
DLNA	Not supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS	A-GPS, GeoTagging, GLONASS, BeiDou
NFC	Not supported	Not supported
Infrared port	Not supported	Not supported
🧭 Sensors
	LG K4 (K121)	Galaxy J2 Pro 2018 (SM-J250M/DS)
Sensors	Accelerometer Ambient light sensor Proximity sensor	Accelerometer Ambient light sensor Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	LG K4 (K121)	Galaxy J2 Pro 2018 (SM-J250M/DS)
Battery type	Li-Ion: lithium-ion (Removable) BL-49JH	Li-Ion: lithium-ion (Removable)
Battery capacity	1940 mAh	2600 mAh
Charger, watts	Wired charging	Wired charging
Inductive / wireless charging	feature not registered	feature not registered
Talk time autonomy	9 hours	18 hours
Standby	500 hours (20.8 days)	feature not registered
➕ Other features
	LG K4 (K121)	Galaxy J2 Pro 2018 (SM-J250M/DS)
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: White, Blue • Flash Selfie • Knock Code	• Colors: Black, Gold, Blue, Pink
☢️ Radiation rate
	LG K4 (K121)	Galaxy J2 Pro 2018 (SM-J250M/DS)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	0.97W/kg (head), 0.56W/kg (body)
SAR 2W/kg (Europe, UK, etc.)	feature not registered	feature not registered