LG K42 (K420YMW) vs Xiaomi 12 (256GB/12GB)

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Side by side comparison between LG K42 vs Xiaomi 12 phones, differences, pros, cons and full specifications. What's the better?

7/20/2022 8:51 AM, updated: 7/20/2022 9:21 AM

Compare Xiaomi 12 X LG K42 (K420YMW) 07Points

Specifications Compare Models Pictures

6.6"
IPS

720x1600

13
MP

8mp

3GB
RAM

Octa-core

4000
mAh

(Non removable)

29Points Xiaomi 12 (256GB/12GB) Compare LG K42 X

Specifications Compare Models Pictures

6.28"
AMOLED

1080x2400

50
MP

32mp

12GB
RAM

Octa-core

4500
mAh

(Non removable)

What's the better phone? Xiaomi 12 (256GB/12GB)

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 K42 (K420YMW)	vs	29 Advantages Xiaomi 12 (256GB/12GB)
+Until 1TB microSD, microSDXCAdvantage More external storage for files using memory cards	vs	Not supported
+6.6"5% Larger screen	vs	6.28"
+f/1.8 (aperture)6% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.	vs	f/1.9 (aperture)
+Proximity sensorAdvantage Sensors help you use the device	vs	Virtual proximity sensor
+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
+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	+3GHz 64bit Octa-core (4nm)53% More powerful processor, you can open your applications faster
3GB LPDDR4X	vs	+12GB LPDDR53 times More RAM memory. Typically more responsive and better for multitasking.
64GB (45GB available)	vs	+256GB (218GB available)4 times More internal storage for applications and files
eMMC 5.1	vs	+UFS 3.1Advantage Fastest write and read storage.
184 grams (6.44 ounces)	vs	+180 grams (6.3 ounces)2% Lighter
8.4 millimeters (0.33 inches)	vs	+8.2 millimeters (0.32 inches)2% Thinner
Plastic body, glass front	vs	+Aluminum frame, glass front/backAdvantage More resistant material
TFT IPS LCD	vs	+AMOLEDAdvantage AMOLED display is brighter and more vivid
Not supported	vs	+Dolby Vision/HDR10+Advantage The Dolby Vision/HDR10+ display provides vibrant colors and more details
60Hz	vs	+120Hz100% The display reproduces more frames per second because the frequency (Hertz) is higher, improves fluidity and tires your eyes less.
16 million	vs	+1 billion62 times More colors on the screen is better quality images and videos
720x1600 pixels	vs	+1080x2400 pixels125% Higher resolution screen
266 PPI	vs	+419 PPI58% Crisper display of text, images and videos because it has more pixels per inch (ppi)
(quad camera) 13MP + 5MP + 2MP + 2MP	vs	+(triple camera) 50MP + 13MP + 5MP2 times Higher resolution main camera
LED flash	vs	+Dual-LED flashAdvantage The Dual-LED flash helps in dark places or in low light
EIS: Digital stabilization	vs	+OIS: Optical stabilizationAdvantage Image stabilization prevents blurry photos and helps in recording motion video
1/3.1" inches	vs	+1/1.56" inches99% The larger sensor camera lets you take photos with better depth.
(front) 8MP	vs	+(front) 32MP3 times Higher resolution secondary camera to take pictures and selfies
Full HD (1920x1080)	vs	+8K UHD (7680x4320)15 times More image quality for recording videos with the primary camera
Android 10	vs	+Android 12Advantage Android 12 is newer and safer
4G LTE	vs	+5G SA/NSAAdvantage The 5G SA/NSA network is newer and faster
(4G LTE) 150 Mbps	vs	+(5G SA/NSA) 2000 Mbps12 times Faster for surfing the internet and download files
Not supported	vs	+GyroscopeAdvantage Sensors help you use the device
4000 mAh	vs	+4500 mAh13% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
10W	vs	+67W6 times More power (watts) to charge the battery faster. Sometimes, the charger that comes with the device doesn't have the same power supported by the device. Check before you buy it.
Not supported	vs	+Qi wireless chargingAdvantage Wireless charging is another way to charge the battery.
802.11 b/g/n [wifi4]	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
5.0 + A2DP/LE	vs	+5.2 + A2DP/LEAdvantage Bluetooth 5.2 + A2DP/LE is newer and faster
Not supported	vs	+Gorilla Glass VictusAdvantage Protection against scratches on the screen lets you carry your phone with your keys

17 Common items in both devices

Only digital zoom

PDAF: phase detection autofocus

HDR photo on both cameras / HDR photo/video on both cameras

(front) Full HD (1920x1080)

Capacitive

Multitouch

Accelerometer

+10 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 (K420YMW)	Xiaomi 12 (256GB/12GB)
Change model		Choose the model
Model	K42 (K420YMW)	Xiaomi 12 (256GB/12GB)
Other model names	LG K42 LMK420YMW, LM-K420YMW Dual-SIM	Xiaomi 12 5G 2201123G (Global), 2201123C (China)
Country or region available	(Global, International), United Arab Emirates, India, Israel, Taiwan	China
Brand	LG	Xiaomi
Release date	9/21/2020	12/31/2021, Announced: 12/28/2011
Depth	8.4 millimeters (0.33 inches)	8.2 millimeters (0.32 inches)
Size (width x height)	76.7 x 165 millimeters (3.02 x 6.5 in)	69.9 x 152.7 millimeters (2.75 x 6.01 in)
Weight	184 grams (6.44 ounces)	180 grams (6.3 ounces)
Build, materials	Plastic body, glass front	Aluminum frame, glass front/back
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 (K420YMW)	Xiaomi 12 (256GB/12GB)
Display type	TFT IPS LCD	AMOLED
Screen size	6.6" inches	6.28" inches
Screen-to-body ratio	~83.1% (screen-to-body ratio)	~89.2% (screen-to-body ratio)
Display resolution	720x1600 pixels (20:9)	1080x2400 pixels (20:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch 10-points
Pixel density (dot pitch)	266 PPI	419 PPI
Colors	16 million	1 billion
Scratch-resistant glass	Not supported	Gorilla Glass Victus
Refresh rate	60Hz	120Hz
Display features	Not supported	1100nits[peak] Dolby Vision/HDR10+
🤖 Operating System
	LG K42 (K420YMW)	Xiaomi 12 (256GB/12GB)
System version	Android 10	Android 12
Firmware update	feature not registered	feature not registered
User Interface	feature not registered	MIUI 13
⚙️ Processor
	LG K42 (K420YMW)	Xiaomi 12 (256GB/12GB)
Chipset	64bit: MediaTek Helio P22 (MT6762) (12nm)	64bit: Qualcomm Snapdragon 8 Gen 1 (SM8450) (4nm)
CPU	Octa-core, 2 processors: 4x 2GHz ARM Cortex-A53 (Quad-core) 4x 1.5GHz ARM Cortex-A53 (Quad-core)	Octa-core, 3 processors: 1x 3GHz ARM Cortex-X2 (Single-core) 3x 2.5GHz ARM Cortex-A710 (Triple-core) 4x 1.79GHz ARM Cortex-A510 (Quad-core)
GPU graphical controller	PowerVR GE8320 (650MHz)	Qualcomm Adreno 730 (818MHz)
Performance (benchmark)	feature not registered	AnTuTu: 985115 (v9) Geekbench: 3652 (v5.1) GFXBench: 75fps (ES 3.1 onscreen)
💽 Memory and storage
	LG K42 (K420YMW)	Xiaomi 12 (256GB/12GB)
RAM memory	3GB LPDDR4X	12GB LPDDR5
Internal storage	64GB (45GB available) eMMC 5.1	256GB (218GB available) UFS 3.1
External storage	Until 1TB microSD, microSDXC (dedicated slot)	Not supported
📶 Mobile networks
	LG K42 (K420YMW)	Xiaomi 12 (256GB/12GB)
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	150/50 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	CDMA 800, GSM 850/900/1800/1900
Primary 3G network	UMTS 850/900/1900/2100	CDMA2000 1xEV-DO UMTS 800/850/900/1700/1900/2100
Primary 4G network	LTE Cat4 (1, 3, 5, 7, 8, 20, 28) TD-LTE (38, 39, 40) VoLTE	LTE Cat20 VoLTE Global version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66) TD-LTE (38, 39, 40, 41, 42, 48) China version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 26) TD-LTE (34, 38, 39, 40, 41, 42)
Primary 5G network	Not supported	Global version: SA/NSA (1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78, 79) China version: SA/NSA (1, 3, 5, 8, 28, 41, 77, 78, 79)
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE	GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, 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 800/850/900/1700/1900/2100
Secondary 4G network	Not supported	LTE Cat20 VoLTE Global version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66) TD-LTE (38, 39, 40, 41, 42, 48) China version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 26) TD-LTE (34, 38, 39, 40, 41, 42)
Secondary data network	GPRS, EDGE	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA
📷 Camera
	LG K42 (K420YMW)	Xiaomi 12 (256GB/12GB)
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	(triple camera) 50 megapixels 13MP ultrawide f/2.412mm123°1/3.06"1.12µm 5MP telephoto macro f/2.450mmAF
Main camera resolution	4128x3096 pixels	8160x6120 pixels
Video recording (primary)	Full HD (1920x1080) 30 fps	8K UHD (7680x4320) 24 fps
Flash	LED flash	Dual-LED flash
Focal aperture	f/1.8 (aperture)	f/1.9 (aperture)
Focal length	27mm lens	26mm lens
Sensor size	1/3.1" inches	1/1.56" inches
Pixel size	1.12µm pixel	1µm pixel
Autofocus	PDAF: phase detection autofocus	PDAF: phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	EIS: Digital stabilization	OIS: Optical stabilization
Zoom	Only digital zoom	Only digital zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Not supported	Supported
HDR	HDR photo on both cameras	HDR photo/video on both cameras
Camera extras	feature not registered	4K@60fps 1080p@960fps Sony IMX707 Leica optics
📸 Front camera
	LG K42 (K420YMW)	Xiaomi 12 (256GB/12GB)
Front camera (secondary)	8 megapixels	32 megapixels
Front camera resolution	3264x2448 pixels	6528x4896 pixels
Video recording (secondary)	Full HD (1920x1080)	Full HD (1920x1080)
Front flash	Not supported	Not supported
Focal aperture	f/2.0 (aperture)	f/2.5 (aperture)
Focal length	feature not registered	26mm lens
Sensor size	feature not registered	feature not registered
Pixel size	feature not registered	0.7µm pixel
🔉 Sound and multimedia
	LG K42 (K420YMW)	Xiaomi 12 (256GB/12GB)
Loudspeaker	Supported	Stereo sound with dual speakers 24-bit/192kHz Dolby Atmos Tuned by Harman Kardon
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	FM	Not supported
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263, XviD, MKV	MP4, H.265, H.264, H.263, XviD, MKV
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	LG K42 (K420YMW)	Xiaomi 12 (256GB/12GB)
USB	USB 2.0 Type-C, USB OTG On-The-Go	USB 2.0 Type-C, USB OTG On-The-Go
Audio output	3.5mm jack	Type-C reversible connector
TV output	USB Type-C (reversible)	USB Type-C (reversible)
Bluetooth	5.0 + A2DP/LE	5.2 + A2DP/LE
WiFi	802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot	802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot
DLNA	Not supported	Not supported
GPS	A-GPS, GeoTagging	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS, NavIC
NFC	Supported	Supported
Infrared port	Not supported	Supported
🧭 Sensors
	LG K42 (K420YMW)	Xiaomi 12 (256GB/12GB)
Sensors	Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (side-mounted) Proximity sensor	Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (under display) Gyroscope Virtual proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	LG K42 (K420YMW)	Xiaomi 12 (256GB/12GB)
Battery type	LiPo: li-ion polymer (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	4000 mAh	4500 mAh
Charger, watts	10W (5V/2A) Wired charging	67W Wired fast charging Reverse charging by cable Quick Charge 4 USB Power Delivery 3.0
Inductive / wireless charging	Not supported	50W Qi wireless charging 10W Reverse wireless charging
Talk time autonomy	16 hours	feature not registered
Standby	180 hours (7.5 days)	feature not registered
➕ Other features
	LG K42 (K420YMW)	Xiaomi 12 (256GB/12GB)
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, Green, Red • Silicon case included • LG 3D Sound Engine	• Colors: Gray, Blue, Purple, Green • LiquidCool
☢️ Radiation rate
	LG K42 (K420YMW)	Xiaomi 12 (256GB/12GB)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	1.09W/kg (head), 0.91W/kg (body)
SAR 2W/kg (Europe, UK, etc.)	feature not registered	0.6W/kg (head), 1W/kg (body)