LG Stylo 4 vs LG K40S

Display

Display size

6.2 inches
6.1 inches

Resolution

1080 x 2160 pixels
720 x 1560 pixels

Pixel density

390 ppi
282 ppi

Technology

TFT
IPS LCD

Screen-to-body ratio

79.63 %
79.11 %

Features

Ambient light sensor, Proximity sensor
Ambient light sensor, Proximity sensor

Camera

Rear

Single camera
Dual camera

Main camera

13 megapixels
13 megapixels

Hardware Features

Phase detection autofocus
Phase detection autofocus

Specifications

Aperture size: F2.2
Aperture size: F2.2; Focal length: 26 mm

Second camera

 
5 megapixels

Hardware Features

 
Ultra-wide

Flash

LED
LED

Video recording

1920x1080 (Full HD) (30 fps)
1920x1080 (Full HD) (30 fps)

Features

Picture-taking during video recording, Video light, Digital image stabilization, Video calling, Video sharing
 

Front

5 megapixels
13 megapixels

Features

Autofocus, High Dynamic Range mode (HDR)
 

Design

Dimensions

6.30 x 3.06 x 0.32 inches (160 x 77.7 x 8.1 mm)
6.15 x 2.91 x 0.34 inches (156.3 x 73.9 x 8.6 mm)

Weight

6.07 oz (172 g)
the average is 6.1 oz (174 g)
 

Materials

Back: Metal
Back: Plastic

Resistance

 
MIL-STD-810 certified

Biometrics

2D Face unlock, Fingerprint (touch)
Fingerprint (touch)

Features

Stylus, Notification light
 

Colors

Black
 

Colors

 
Aurora black, Moroccan blue

Multimedia

Headphones

3.5 mm jack
3.5 mm jack

Speakers

Earpiece, Loudspeaker
Earpiece, Loudspeaker

Features

Album art cover, Background playback
DTS:X Virtual Surround

Screen mirroring

DLNA, Wireless screen share
DLNA, Wireless screen share

Radio

FM
 

Additional microphone(s)

for Noise cancellation
for Noise cancellation

Hardware & Performance

System chip

Qualcomm Snapdragon 450 SDM450
Mediatek Helio P22 MT6762

Processor

Octa-core, 1800 MHz, ARM Cortex-A53, 64-bit, 14 nm
Octa-core, 2000 MHz, ARM Cortex-A53, 64-bit, 12 nm

GPU

Adreno 506
IMG PowerVR GE8320

RAM

3 GB
3 GB

Internal storage

32 GB
32 GB

Available to use

21.38 GB
 

Storage expansion

microSDXC up to 2000 GB
microSDXC up to 2000 GB

OS

Android (8.1 Oreo), LG UX UI
Android (9.0 Pie)

Connectivity & Features

Bluetooth

4.2
5.0

Wi-Fi

802.11 a, b, g, n, ac, dual-band; Hotspot, Wi-Fi Direct
802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot

USB

USB Type-C (reversible), USB 2.0
microUSB, USB 2.0

Features

Mass storage device
USB OTG

Location

GPS, A-GPS
GPS, A-GPS, Glonass, Cell ID, Wi-Fi positioning

Sensors

Accelerometer, Compass
Accelerometer

Other

NFC, UMA (Wi-Fi Calling), VoIP, Tethering, Computer sync, OTA sync
 

Cellular

LTE (FDD)

Bands 2, 3, 4, 5, 7, 12, 13, 17, 20, 25, 26, 66, 71
Bands 1, 3, 7, 8, 20

LTE (TDD)

Bands 38, 41
 

UMTS

850, 900, 1700/2100, 1900, 2100 MHz
850, 900, 1900, 2100 MHz

Data

LTE-A Cat 6 (300/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSPA, HSUPA, UMTS
LTE-A Cat 6 (300/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

SIM type

Nano SIM
Nano SIM

HD Voice

Yes
 

Battery

Capacity

3300 mAh
3500 mAh

Type

Li - Polymer, Not user replaceable
Not user replaceable

Charging

Qualcomm Quick Charge 2.0, Qualcomm Quick Charge 3.0
 

Talk time

14.00 hours
the average is 20 h (1205 min)
 

Stand-by time

20.0 days (480 hours)
the average is 21 days (509 h)
 

Phone features

Notifications

Haptic feedback, Music ringtones, Vibration, Flight mode, Silent mode, Speakerphone
 

Other features

Voice dialing, Voice commands, Voice recording, TTY/TDD
 

Shopping information

In The Box

USB Cable, Charger, Quick Start Guide, SIM Ejection tool
 

MSRP price

$ 300
 
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