LG K42 (K420HMW) vs Xiaomi Mi Mix 3 (128GB/6GB)

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Side by side comparison between LG K42 vs Xiaomi Mi Mix 3 phones, differences, pros, cons and full specifications. What's the better?

3/7/2021 7:41 PM, updated: 12/15/2022 6:34 PM

Compare Xiaomi Mi Mix 3 X LG K42 (K420HMW) 09Points

Specifications Compare Models Pictures

6.6"
IPS

720x1600

13
MP

8mp

3GB
RAM

Octa-core

4000
mAh

(Non removable)

24Points Xiaomi Mi Mix 3 (128GB/6GB) Compare LG K42 X

Specifications Compare Models Pictures

6.39"
AMOLED

1080x2340

12
MP

24mp

6GB
RAM

Octa-core

3200
mAh

(Non removable)

What's the better phone? Xiaomi Mi Mix 3 (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!

9 Advantages LG K42 (K420HMW)	vs	24 Advantages Xiaomi Mi Mix 3 (128GB/6GB)
+Until 1TB microSD, microSDXCAdvantage More external storage for files using memory cards	vs	Not supported
+184 grams (6.44 ounces)18% Lighter	vs	218 grams (7.63 ounces)
+8.4 millimeters (0.33 inches)1% Thinner	vs	8.5 millimeters (0.33 inches)
+6.6"3% Larger screen	vs	6.39"
+Proximity sensorAdvantage Sensors help you use the device	vs	Virtual proximity sensor
+4000 mAh25% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use	vs	3200 mAh
+3.5mm jackAdvantage Headsets with 3.5mm Jack size are more common and easy to find in stores	vs	Type-C jack with 3.5mm jack adapter
+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	+2.8GHz 64bit Octa-core (10nm)49% More powerful processor, you can open your applications faster
3GB LPDDR4X	vs	+6GB LPDDR4X100% More RAM memory. Typically more responsive and better for multitasking.
64GB (45GB available)	vs	+128GB (110GB available)144% More internal storage for applications and files
eMMC 5.1	vs	+UFS 2.1Advantage Fastest write and read storage.
Plastic body, glass front	vs	+Aluminum body, glass front, ceramic backAdvantage More resistant material
TFT IPS LCD	vs	+Super AMOLEDAdvantage Super AMOLED display is brighter and more vivid
Not supported	vs	+HDR8Advantage The HDR8 display provides vibrant colors and more details
720x1600 pixels	vs	+1080x2340 pixels119% Higher resolution screen
266 PPI	vs	+403 PPI52% Crisper display of text, images and videos because it has more pixels per inch (ppi)
(quad camera) 13MP + 5MP + 2MP + 2MP	vs	+(dual camera) 12MP + 12MP10% 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
Only digital zoom	vs	+Digital and optical zoomAdvantage The zoom allows for better focus and approach to take pictures
EIS: Digital stabilization	vs	+OIS (4-axis): Optical stabilizationAdvantage Image stabilization prevents blurry photos and helps in recording motion video
Not supported	vs	+BSI sensorAdvantage The BSI sensor allows the entry of more light generating photos with more detail and brightness
1/3.1" inches	vs	+1/2.55" inches22% The larger sensor camera lets you take photos with better depth.
(front) 8MP	vs	+(dual front camera) 24MP + 2MP2 times Higher resolution secondary camera to take pictures and selfies
Full HD (1920x1080)	vs	+4K UHD (3840x2160)3 times More image quality for recording videos with the primary camera
(4G LTE) 150 Mbps	vs	+(4G LTE-A) 600 Mbps3 times Faster for surfing the internet and download files
Not supported	vs	+GyroscopeAdvantage Sensors help you use the device
10W	vs	+18W80% 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 [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

25 Common items in both devices

60Hz

16 million

PDAF: phase detection autofocus

HDR photo on both cameras

f/1.8 (aperture)

(front) Full HD (1920x1080)

Android 10

+18 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 (K420HMW)	Xiaomi Mi Mix 3 (128GB/6GB)
Change model		Choose the model
Model	K42 (K420HMW)	Xiaomi Mi Mix 3 (128GB/6GB)
Other model names	LG K42 LMK420HMW, LM-K420HMW Dual-SIM	小米MIX 3, Xiaomi Mix 3 M1810E5A
Country or region available	(Latin America), Colombia, Costa Rica, Guatemala, Honduras, Nicaragua, Panama	(Global, International), China
Brand	LG	Xiaomi
Release date	9/21/2020	11/1/2018, Announced: 10/1/2018
Depth	8.4 millimeters (0.33 inches)	8.5 millimeters (0.33 inches)
Size (width x height)	76.7 x 165 millimeters (3.02 x 6.5 in)	74.69 x 157.89 millimeters (2.94 x 6.22 in)
Weight	184 grams (6.44 ounces)	218 grams (7.63 ounces)
Build, materials	Plastic body, glass front	Aluminum body, glass front, ceramic 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 (K420HMW)	Xiaomi Mi Mix 3 (128GB/6GB)
Display type	TFT IPS LCD	Super AMOLED
Screen size	6.6" inches	6.39" inches
Screen-to-body ratio	~83.1% (screen-to-body ratio)	~85% (screen-to-body ratio)
Display resolution	720x1600 pixels (20:9)	1080x2340 pixels (19.5:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	266 PPI	403 PPI
Colors	16 million	16 million
Scratch-resistant glass	Not supported	Gorilla Glass 3
Refresh rate	60Hz	60Hz
Display features	Not supported	600nits[typ] HDR8
🤖 Operating System
	LG K42 (K420HMW)	Xiaomi Mi Mix 3 (128GB/6GB)
System version	Android 10	Android 9.0 Pie
Firmware update	feature not registered	Android 10
User Interface	feature not registered	MIUI 10 / 12
⚙️ Processor
	LG K42 (K420HMW)	Xiaomi Mi Mix 3 (128GB/6GB)
Chipset	64bit: MediaTek Helio P22 (MT6762) (12nm)	64bit: Qualcomm Snapdragon 845 (SDM845) (10nm)
CPU	Octa-core, 2 processors: 4x 2GHz ARM Cortex-A53 (Quad-core) 4x 1.5GHz ARM Cortex-A53 (Quad-core)	Octa-core, 2 processors: 4x 2.8GHz Kryo 385 Gold (Quad-core) 4x 1.7GHz Kryo 385 Silver (Quad-core)
GPU graphical controller	PowerVR GE8320 (650MHz)	Qualcomm Adreno 630 (710MHz)
Performance (benchmark)	feature not registered	AnTuTu: 292353 (v7), 352130 (v8) Geekbench: 9065 (v4.4), 2170 (v5.1) GFXBench: 30fps (ES 3.1 onscreen)
💽 Memory and storage
	LG K42 (K420HMW)	Xiaomi Mi Mix 3 (128GB/6GB)
RAM memory	3GB LPDDR4X	6GB LPDDR4X
Internal storage	64GB (45GB available) eMMC 5.1	128GB (110GB available) UFS 2.1
External storage	Until 1TB microSD, microSDXC (dedicated slot)	Not supported
📶 Mobile networks
	LG K42 (K420HMW)	Xiaomi Mi Mix 3 (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	150/50 Mbps	600/50 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	CDMA 800/1900, GSM 850/900/1800/1900
Primary 3G network	UMTS 850/900/1700/1900/2100	Global version: UMTS 800/850/900/1700/1800/1900/2100 China version: CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/1700/1900/2100
Primary 4G network	LTE Cat4 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 28, 66) TD-LTE (38) VoLTE	LTE Cat11 VoLTE Global version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29, 30, 66) TD-LTE (34, 38, 39, 40, 41) China version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 20) TD-LTE (34, 38, 39, 40, 41)
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE	GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
Secondary 2G network	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Secondary 3G network	Not supported	Global version: UMTS 800/850/900/1700/1800/1900/2100 China version: UMTS 850/900/1700/1900/2100
Secondary 4G network	Not supported	LTE Cat11 VoLTE Global version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29, 30, 66) TD-LTE (34, 38, 39, 40, 41) China version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 20) TD-LTE (34, 38, 39, 40, 41)
Secondary data network	GPRS, EDGE	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
📷 Camera
	LG K42 (K420HMW)	Xiaomi Mi Mix 3 (128GB/6GB)
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	(dual camera) 12 megapixels 12MP telephoto 1/3.4"1.0µm
Main camera resolution	4128x3096 pixels	4000x3000 pixels
Video recording (primary)	Full HD (1920x1080) 30 fps	4K UHD (3840x2160) 60 fps
Flash	LED flash	LED flash on both cameras
Focal aperture	f/1.8 (aperture)	f/1.8 (aperture)
Focal length	27mm (lens)	feature not registered
Sensor size	1/3.1" inches	1/2.55" inches
Pixel size	1.12µm pixel	1.4µm pixel
Autofocus	PDAF: phase detection autofocus	PDAF: phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	EIS: Digital stabilization	OIS (4-axis): 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 on both cameras	HDR photo on both cameras
Camera extras	feature not registered	4K@30/60fps 1080p@30/60/960fps
📸 Front camera
	LG K42 (K420HMW)	Xiaomi Mi Mix 3 (128GB/6GB)
Front camera (secondary)	8 megapixels	(dual front camera) 24 megapixels 2MP depth
Front camera resolution	3264x2448 pixels	5656x4224 pixels
Video recording (secondary)	Full HD (1920x1080)	Full HD (1920x1080)
Front flash	Not supported	LED
Focal aperture	f/2.0 (aperture)	f/2.0 (aperture)
Focal length	feature not registered	26mm (lens)
Sensor size	feature not registered	1/2.8" inches
Pixel size	feature not registered	0.9µm pixel
🔉 Sound and multimedia
	LG K42 (K420HMW)	Xiaomi Mi Mix 3 (128GB/6GB)
Loudspeaker	Supported	Mono sound (not stereo)
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 (K420HMW)	Xiaomi Mi Mix 3 (128GB/6GB)
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 jack with 3.5mm jack adapter
TV output	USB Type-C (reversible)	USB Type-C (reversible)
Bluetooth	5.0 + A2DP/LE	5.0 + A2DP/LE
WiFi	802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot
DLNA	Not supported	Not supported
GPS	A-GPS, GeoTagging	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS
NFC	Not supported	Supported
Infrared port	Not supported	Not supported
🧭 Sensors
	LG K42 (K420HMW)	Xiaomi Mi Mix 3 (128GB/6GB)
Sensors	Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (side-mounted) Proximity sensor	Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (rear-mounted) Gyroscope Virtual proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	LG K42 (K420HMW)	Xiaomi Mi Mix 3 (128GB/6GB)
Battery type	LiPo: li-ion polymer (Non removable)	Li-Ion: lithium-ion (Non removable)
Battery capacity	4000 mAh	3200 mAh
Charger, watts	10W (5V/2A) Wired charging	18W Wired fast charging Quick Charge 4
Inductive / wireless charging	Not supported	10W Qi wireless charging
Talk time autonomy	16 hours	feature not registered
Standby	180 hours (7.5 days)	feature not registered
➕ Other features
	LG K42 (K420HMW)	Xiaomi Mi Mix 3 (128GB/6GB)
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: Onyx Black, Jade Green, Sapphire Blue • Mechanical pop-up front camera
☢️ Radiation rate
	LG K42 (K420HMW)	Xiaomi Mi Mix 3 (128GB/6GB)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	1.45W/kg (head), 1.57W/kg (body)
SAR 2W/kg (Europe, UK, etc.)	feature not registered	feature not registered