LG K42 (K420HM) vs Asus Zenfone 2 (ZE551ML 64GB)

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Side by side comparison between LG K42 vs Asus Zenfone 2 phones, differences, pros, cons and full specifications. What's the better?

3/7/2021 7:31 PM, updated: 3/7/2021 7:42 PM

Compare Asus Zenfone 2 X LG K42 (K420HM) 16Points

Specifications Compare Models Pictures

6.6"
IPS

720x1600

13
MP

8mp

3GB
RAM

Octa-core

4000
mAh

(Non removable)

12Points Asus Zenfone 2 (ZE551ML 64GB) Compare LG K42 X

Specifications Compare Models Pictures

5.5"
IPS

1080x1920

13
MP

5mp

4GB
RAM

Quad-core

3000
mAh

(Non removable)

What's the better phone? LG K42 (K420HM)

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!

16 Advantages LG K42 (K420HM)	vs	12 Advantages Asus Zenfone 2 (ZE551ML 64GB)
+Until 1TB microSD, microSDXC15 times More external storage for files using memory cards	vs	Until 64GB microSD, microSDXC
+8.4 millimeters (0.33 inches)30% Thinner	vs	10.9 millimeters (0.43 inches)
+6.6"20% Larger screen	vs	5.5"
+(quad camera) 13MP + 5MP + 2MP + 2MP70% Higher resolution main camera	vs	(back) 13MP
+HDR photo on both camerasAdvantage The HDR technology produced photos with more detail in dark areas	vs	HDR photo only main camera
+f/1.8 (aperture)11% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.	vs	f/2.0 (aperture)
+(front) 8MP63% Higher resolution secondary camera to take pictures and selfies	vs	(front) 5MP
+(front) Full HD (1920x1080)125% More image quality for recording videos with the secondary camera	vs	(front) HD (1280x720)
+Android 10Advantage Android 10 is newer and safer	vs	Android 6.0 Marshmallow
+Face unlock 2DAdvantage Sensors help you use the device	vs	Not supported
+Fingerprint sensor (side-mounted)Advantage Sensors help you use the device	vs	Not supported
+4000 mAh33% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use	vs	3000 mAh
+Active noise cancellationAdvantage More noise-canceling microphones allow for better quality in calls and audio for recorded videos	vs	Not supported
+5.0 + A2DP/LEAdvantage Bluetooth 5.0 + A2DP/LE is newer and faster	vs	4.0 + A2DP
+Type-CAdvantage Reversible connector, you can stick in a USB-C cable any which way; either side is up.	vs	MicroUSB 2.0
+MIL-STD-810G military certifiedAdvantage Protection against water allows you talk to your friends in the rain, for example	vs	Not supported
2GHz 64bit Octa-core (12nm)	vs	+2.3GHz 64bit Quad-core6% More powerful processor, you can open your applications faster
3GB LPDDR4X	vs	+4GB LPDDR333% More RAM memory. Typically more responsive and better for multitasking.
64GB (45GB available)	vs	+64GB (60GB available)33% More internal storage for applications and files
184 grams (6.44 ounces)	vs	+170 grams (5.95 ounces)8% Lighter
720x1600 pixels	vs	+1080x1920 pixels80% Higher resolution screen
266 PPI	vs	+401 PPI51% Crisper display of text, images and videos because it has more pixels per inch (ppi)
LED flash	vs	+Dual-LED flashAdvantage The Dual-LED flash helps in dark places or in low light
Not supported	vs	+GyroscopeAdvantage 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.
802.11 b/g/n [wifi4]	vs	+802.11 a/b/g/n/ac [wifi5]Advantage WiFi 802.11 a/b/g/n/ac [wifi5] is newer and faster
Not supported	vs	+NFCAdvantage NFC allows you to make payments by approach quickly and securely
Not supported	vs	+Gorilla Glass 3Advantage Protection against scratches on the screen lets you carry your phone with your keys

22 Common items in both devices

TFT IPS LCD

16 million

Only digital zoom

PDAF: phase detection autofocus / Autofocus

Full HD (1920x1080)

4G LTE

150 Mbps

+15 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 K42 (K420HM)	Asus Zenfone 2 (ZE551ML 64GB)
Change model		Choose the model
Model	K42 (K420HM)	Zenfone 2 (ZE551ML 64GB)
Other model names	LG K42 LMK420HM, LM-K420HM Single-SIM	Asus Zenfone 2 ZE551ML Dual-sim (64GB + 4GB RAM)
Country or region available	(Latin America), Chile, Ecuador, Mexico, Peru	feature not registered
Brand	LG	Asus
Release date	9/21/2020	3/1/2015
Depth	8.4 millimeters (0.33 inches)	10.9 millimeters (0.43 inches)
Size (width x height)	76.7 x 165 millimeters (3.02 x 6.5 in)	77.2 x 152.5 millimeters (3.04 x 6 in)
Weight	184 grams (6.44 ounces)	170 grams (5.95 ounces)
Build, materials	Plastic body, glass front	feature not registered
Protection against water and others	MIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant.	Not supported
📲 Display
	LG K42 (K420HM)	Asus Zenfone 2 (ZE551ML 64GB)
Display type	TFT IPS LCD	TFT IPS LCD
Screen size	6.6" inches	5.5" inches
Screen-to-body ratio	~83.1% (screen-to-body ratio)	~70.8% (screen-to-body ratio)
Display resolution	720x1600 pixels (20:9)	1080x1920 pixels
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	266 PPI	401 PPI
Colors	16 million	16 million
Scratch-resistant glass	Not supported	Gorilla Glass 3
Refresh rate	60Hz	feature not registered
Display features	Not supported	feature not registered
🤖 Operating System
	LG K42 (K420HM)	Asus Zenfone 2 (ZE551ML 64GB)
System version	Android 10	Android 5.0 Lollipop
Firmware update	feature not registered	Android 6.0 Marshmallow
User Interface	feature not registered	feature not registered
⚙️ Processor
	LG K42 (K420HM)	Asus Zenfone 2 (ZE551ML 64GB)
Chipset	64bit: MediaTek Helio P22 (MT6762) (12nm)	64bit: Intel Atom Z3580
CPU	Octa-core, 2 processors: 4x 2GHz ARM Cortex-A53 (Quad-core) 4x 1.5GHz ARM Cortex-A53 (Quad-core)	Quad-core, 1 processor: 4x 2.3GHz Intel Silvermont (Quad-core)
GPU graphical controller	PowerVR GE8320 (650MHz)	PowerVR G6430 MP4
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	LG K42 (K420HM)	Asus Zenfone 2 (ZE551ML 64GB)
RAM memory	3GB LPDDR4X	4GB LPDDR3
Internal storage	64GB (45GB available) eMMC 5.1	64GB (60GB available)
External storage	Until 1TB microSD, microSDXC (dedicated slot)	Until 64GB microSD, microSDXC (dedicated slot)
📶 Mobile networks
	LG K42 (K420HM)	Asus Zenfone 2 (ZE551ML 64GB)
Dual-SIM	Not supported	Dual-SIM Standby - Call active on one sim card (dedicated slot)
SIM card	1 slot (Single-SIM) nano-SIM (4FF)	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 850/900/1700/1900/2100	UMTS 850/900/1900/2100
Primary 4G network	LTE Cat4 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 28, 66) TD-LTE (38) VoLTE	LTE Cat4 800/850/900/1700/1800/1900/2100/2600 Bands (1,2,3,4,5,7,8,20) - USA: 700/800/850/900/1700/1800/1900/2100/2600 (Bands 1,2,3,4,5,7,8,17,20)
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, 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 K42 (K420HM)	Asus Zenfone 2 (ZE551ML 64GB)
Back camera (main camera)	(quad camera) 13 megapixels 5MP ultrawide f/2.2115°1/5.0"1.12µm 2MP macro f/2.41.75μm 2MP depth f/2.41.75μm	13 megapixels
Main camera resolution	4128x3096 pixels	4128x3096 pixels
Video recording (primary)	Full HD (1920x1080) 30 fps	Full HD (1920x1080) 30 fps
Flash	LED flash	Dual-LED flash
Focal aperture	f/1.8 (aperture)	f/2.0 (aperture)
Focal length	27mm (lens)	feature not registered
Sensor size	1/3.1" inches	feature not registered
Pixel size	1.12µm pixel	feature not registered
Autofocus	PDAF: phase detection autofocus	Autofocus
Touch focus	Supported	Supported
Image stabilization	EIS: Digital stabilization	feature not registered
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	HDR photo on both cameras	HDR photo only main camera
Camera extras	feature not registered	feature not registered
📸 Front camera
	LG K42 (K420HM)	Asus Zenfone 2 (ZE551ML 64GB)
Front camera (secondary)	8 megapixels	5 megapixels
Front camera resolution	3264x2448 pixels	2560x1920 pixels
Video recording (secondary)	Full HD (1920x1080)	HD (1280x720)
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 K42 (K420HM)	Asus Zenfone 2 (ZE551ML 64GB)
Loudspeaker	Supported	Supported
Active noise cancellation	2 microphones or more	Not supported
Radio	FM	FM (RDS)
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263, XviD, MKV	MP4, H.264, H.263
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, WAV, eAAC+
🔌 Connectivity
	LG K42 (K420HM)	Asus Zenfone 2 (ZE551ML 64GB)
USB	USB 2.0 Type-C, USB OTG On-The-Go	MicroUSB 2.0
Audio output	3.5mm jack	3.5mm jack
TV output	USB Type-C (reversible)	Not supported
Bluetooth	5.0 + A2DP/LE	4.0 + A2DP
WiFi	802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) WiFi Direct, hotspot
DLNA	Not supported	Not supported
GPS	A-GPS, GeoTagging	A-GPS, GeoTagging, GLONASS
NFC	Not supported	Supported
Infrared port	Not supported	Not supported
🧭 Sensors
	LG K42 (K420HM)	Asus Zenfone 2 (ZE551ML 64GB)
Sensors	Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (side-mounted) Proximity sensor	Accelerometer Ambient light sensor Compass Gyroscope Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	LG K42 (K420HM)	Asus Zenfone 2 (ZE551ML 64GB)
Battery type	LiPo: li-ion polymer (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	4000 mAh	3000 mAh
Charger, watts	10W (5V/2A) Wired charging	Wired charging
Inductive / wireless charging	Not supported	feature not registered
Talk time autonomy	16 hours	feature not registered
Standby	180 hours (7.5 days)	feature not registered
➕ Other features
	LG K42 (K420HM)	Asus Zenfone 2 (ZE551ML 64GB)
Call control	Voice dialing, Voice recorder, Voice commands	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: Titan, Green, Red • Silicon case included • LG 3D Sound Engine	• Colors: Black, Gold, Gray, Red, White • Asus ZenUI • Fast battery charging: 60% in 40min • 5GB free ASUS WebStorage • OpenGL 3.0 • Asus BoostMaster 18W adapter included
☢️ Radiation rate
	LG K42 (K420HM)	Asus Zenfone 2 (ZE551ML 64GB)
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