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Xiaomi Redmi Note 9S vs LG K31 Specs Comparison

Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.

Comparison mode:
Specs Size
Differences only
Xiaomi Redmi Note 9S
LG K31
Xiaomi Redmi Note 9S LG K31
Released · Apr 07, 2020
Released · Aug 21, 2020
6.7-inch
5.7-inch
Quad camera
Dual camera
4GB · 64GB
2GB · 32GB
5020 mAh
3000 mAh

Availability

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

Design

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

Display

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

Hardware

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

Battery

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

Camera

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

Connectivity & Features

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

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
38, 40 41
3G Bands
5, 8, 4, 2, 1 1, 2, 4, 5, 8
Data Speed
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s LTE-A Cat 7 (300/100 Mbit/s), 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
FCC OKs Cingular\'s purchase of AT&T Wireless