LG K31 vs Xiaomi Redmi Note 9S Specs Comparison

Availability

Officially announced
	Mar 23, 2020
Prices (MSRP)
$150	$249

Design

Dimensions
5.82 x 2.8 x 0.34 inches 147.8 x 71.1 x 8.6 mm	6.53 x 3.02 x 0.35 inches 165.75 x 76.68 x 8.8 mm
Weight
5.15 oz / 146.0 g	7.37 oz / 209.0 g
Materials
Back: Plastic Frame: Plastic	Back: Glass (Corning Gorilla Glass 5)
Resistance
Yes; MIL-STD-810 certified
Biometrics
Fingerprint (touch)	Fingerprint (touch)
Keys
Left: Volume control; Right: Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Silver	Interstellar grey, Aurora blue, Glacier white

Display

Size
5.7-inch, 77.13% screen-to-body	6.7-inch, 84.42% screen-to-body
Type
IPS LCD	IPS LCD, HDR
Resolution
1520x720px, 19:9 ratio, 295 PPI	2400x1080px, 20:9 ratio, 395 PPI
Protection
	Corning Gorilla Glass 5

Hardware

System chip
MediaTek Helio P22 MT6762 (12 nm)	Snapdragon 720G SM7125 (8 nm)
Processor
Octa-core 2000 MHz Arm Cortex-A53	Octa-core 2300 MHz Kryo 465
GPU
IMG PowerVR GE8320	Adreno 618
Memory
2GB/32GB	4GB (LPDDR4)/64GB 6GB/128GB
Storage expansion
microSDXC up to 32 GB	microSDXC up to 512 GB
OS
Android (10)	Android (11, 10)

Battery

Type
3000 mAh	5020 mAh, Li - Polymer
Charging
	Fast charging

Camera

Rear
Dual camera	Quad camera
Main camera
13 MP (PDAF) Aperture size: F1.8 Sensor size: 1/3" Pixel size: 1.12 μm	48 MP (PDAF) Aperture size: F1.8 Sensor size: 1/2" Pixel size: 0.8 μm
Second camera
5 MP (Ultra-wide) Aperture size: F2.2 Sensor size: 1/5" Pixel size: 1.12 μm	8 MP (Ultra-wide) Aperture size: F2.2 Pixel size: 1.12 μm
Third camera
	5 MP (Macro, Autofocus) Aperture size: F2.4 Pixel size: 1.12 μm
Fourth camera
	2 MP (Depth information) Aperture size: F2.4 Pixel size: 1.75 μm
Flash
LED	Dual LED
Video recording
1080p (30 fps)	4K UHD (30 fps), 1080p (120 fps), 720p (960 fps)
Front
5 MP Video capture: 1080p	16 MP (HDR, Slow-motion videos) Video capture: 1080p

Connectivity & Features

Bluetooth
5.0	5.0
WLAN
b,g,n Wi-Fi Direct, Hotspot 802.11 b, g, n	a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac
USB
microUSB, USB 2.0	Type-C
Sensors
Accelerometer, Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor
Hearing aid compatible
M3/T3
Location
GPS, A-GPS, Cell ID, Wi-Fi positioning	GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Other
UMA (Wi-Fi Calling)	Infrared

Multimedia

Headphones
3.5mm jack	3.5mm jack
Speakers
Earpiece, Loudspeaker	Earpiece, Loudspeaker
Screen mirroring
Wireless screen share	Wireless screen share
Radio
FM
Additional microphone(s)
Noise cancellation	Noise cancellation

Cellular

4G (FDD) Bands
2, 4, 5, 12, 13, 25, 26, 66, 71
4G (TDD) Bands
41	38, 40
3G Bands
1, 2, 4, 5, 8	5, 8, 4, 2, 1
Data Speed
LTE-A Cat 7 (300/100 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s	LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
	Yes
SIM type
Nano SIM	Nano SIM
HD Voice
Yes
VoLTE
	Yes

Regulatory Approval

FCC approval
Date approved: Sep 14, 2020 FCC ID value: ZNFK300AM
Measured SAR
Head: 0.47 W/kg Body: 0.91 W/kg Simultaneous Transmission: 1.26 W/kg Wireless Router: 1.02 W/kg

Alternative variants

with 128GB storage

Memory	6GB/128GB
Prices (MSRP)	$279

Discover more

Full Specs LG K31 Specs

Full Specs Xiaomi Redmi Note 9S Specs