Xiaomi Redmi Note 9S vs Samsung Galaxy A31 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.

Xiaomi Redmi Note 9S Samsung Galaxy A31
Released · Apr 07, 2020
Released · Apr 27, 2020
6.7-inch · 2400x1080px
6.4-inch · 2400x1080px
Quad camera
Quad camera
4GB · 64GB
4GB · 64GB
5020 mAh
5000 mAh
Check prices Check prices

Design

Dimensions
6.53 x 3.02 x 0.35 inches
165.75 x 76.68 x 8.8 mm
6.27 x 2.88 x 0.34 inches
159.3 x 73.1 x 8.6 mm
Weight
7.37 oz (209.0 g) 6.53 oz (185.0 g)
Materials
Back: Glass (Corning Gorilla Glass 5) Back: Plastic
Biometrics
Fingerprint (touch) Optical in-screen fingerprint
Keys
Right: Volume control, Lock/Unlock key Right: Volume control, Lock/Unlock key
Colors
Interstellar grey, Aurora blue, Glacier white Prism Crush black, Prism Crush blue, Prism Crush red, Prism Crush white

Display

Size
6.7-inch 6.4-inch
Resolution
2400x1080px, 20:9 ratio, 395 PPI 2400x1080px, 20:9 ratio, 411 PPI
Technology
IPS LCD Super AMOLED
Refresh rate
60Hz
Screen-to-body
84.42 % 84.88 %
Features
HDR support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor Ambient light sensor, Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 720G SM7125 (8 nm) MediaTek Helio P65 MT6768 (12 nm)
Processor
Octa-core
2300 MHz
Kryo 465
Octa-core
2x 2.0GHz Cortex-A75 + 6x 2.0GHz Cortex-A55
GPU
Adreno 618 Mali-G52 MC2
RAM
4GB (LPDDR4) 4GB (LPDDR4)
Internal storage
64GB 64GB (eMMC 5.1), available to use: 46.2 GB
Storage expansion
microSDXC up to 512 GB microSDXC up to 512 GB
OS
Android (11, 10) Android (10), Samsung One UI

Battery

Capacity
5020 mAh 5000 mAh
Type
Li - Polymer Li - Polymer
Charging
Fast charging Fast charging
Charge speed
Wired: 15.0W

Camera

Rear
Quad camera Quad camera
Main camera
48 MP (PDAF)
Aperture size: F1.8
Sensor size: 1/2"
Pixel size: 0.8 μm
48 MP (PDAF)
Aperture size: F2.0
Focal length: 26 mm
Sensor size: 1/2"
Pixel size: 0.8 μm
Second camera
8 MP (Ultra-wide)
Aperture size: F2.2
Pixel size: 1.12 μm
8 MP (Ultra-wide)
Aperture size: F2.2
Sensor size: 1/4"
Pixel size: 1.12 μm
Third camera
5 MP (Macro, Autofocus)
Aperture size: F2.4
Pixel size: 1.12 μm
5 MP (Macro)
Aperture size: F2.4
Fourth camera
2 MP (Depth information)
Aperture size: F2.4
Pixel size: 1.75 μm
5 MP (Depth information)
Aperture size: F2.4
Flash
Dual LED LED
Video recording
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (960 fps) 1920x1080 (Full HD) (30 fps)
Front
16 MP (HDR, Slow-motion videos), Video capture: 1920x1080 (Full HD) 20 MP, Video capture: 1920x1080 (Full HD)

Connectivity & Features

Bluetooth
5.0 5.0
WLAN
802.11 a,b,g,n,ac,dual-band
Wi-Fi Direct, Hotspot
802.11 a,b,g,n,ac,dual-band
Wi-Fi Direct, Hotspot
USB
Type-C Type-C, USB 2.0
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Compass Accelerometer, Gyroscope, Compass
Other
Infrared NFC

Multimedia

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

Cellular

4G (FDD)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 20(800 DD)
4G (TDD)
Bands 38(2600), 40(2300) Bands 38(2600), 40(2300), 41(2600+)
3G
Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100) Bands 1(2100), 2(1900), 5(850), 8(900)
Data Speed
LTE-A, 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 Yes
SIM type
Nano SIM Nano SIM
VoLTE
Yes

Regulatory Approval

FCC approval
Date approved: Mar 08, 2020
FCC ID value: A3LSMA315GL
Measured SAR
Head: 0.53 W/kg
Body: 0.56 W/kg
Simultaneous Transmission: 1.42 W/kg
Wireless Router: 0.65 W/kg
Phablet: 0.89 W/kg

Buyers information

MSRP
$ 249 € 300
In The Box
22.5W Wire charger, Simple protective cover, USB Type-C cable, SIM eject tool, User guide, Warranty card

Availability

Officially announced
Mar 23, 2020 Mar 24, 2020

Alternative variants

with 128GB storage
RAM 6GB
Internal storage 128GB
MSRP $ 279
with 128GB storage
RAM 6GB
Internal storage 128GB
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