Samsung Galaxy A31 vs Xiaomi Redmi Note 9 - specs comparison

Display

Size:

6.4 inches

6.5 inches

Resolution:

2400 x 1080 pixels, 20:9 ratio, 411 PPI

2340 x 1080 pixels, 19.5:9 ratio, 395 PPI

Technology:

Super AMOLED

IPS LCD

Screen-to-body:

84.88 %

83.52 %

Features:

60Hz refresh rate, Ambient light sensor, Proximity sensor

Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor

Hardware

System chip:

MediaTek Helio P65 MT6768

MediaTek Helio G85

Processor:

Octa-core, 2000 MHz, Arm Cortex-A75 and Arm Cortex-A55, 64-bit, 12 nm

Octa-core, 2000 MHz, Arm Cortex-A75 and ArmCortex-A55, 64-bit, 12 nm

GPU:

Mali-G52 MC2

Mali G52 MC2

RAM:

4GB LPDDR4

3GB LPDDR4

Internal storage:

64GB (eMMC 5.1), available to use: 46.2 GB

64GB (eMMC 5.1)

Storage expansion:

microSDXC up to 512 GB

microSDXC up to 128 GB

Device type:

Smartphone

OS:

Android (10), Samsung One UI

Android (10), Xiaomi MI UI

Battery

Capacity:

5000 mAh

5020 mAh

Type:

Li - Polymer, Not user replaceable

Battery life test results:

link

Charging:

Fast charging

Fast charging, Reverse charging

Max charge speed:

Wired: 15.0W

Wired: 18.0W

Camera

Rear:

Quad camera

Main camera:

48 MP (PDAF)

Specifications:

F2.0; 26 mm; 1/2"; 0.8 μm

F1.8; 1/2"; 0.8 μm

Second camera:

8 MP (Ultra-wide)

Specifications:

Aperture size: F2.2; Sensor size: 1/4"; Pixel size: 1.12 μm

Aperture size: F2.2; Sensor size: 1/4"; Pixel size: 1.2 μm

Third camera:

5 MP (Macro)

2 MP (Macro, Autofocus)

Specifications:

Aperture size: F2.4

Aperture size: F2.4; Pixel size: 1.75 μm

Fourth camera:

5 MP (Depth information)

2 MP

Specifications:

Aperture size: F2.4

Aperture size: F2.4; Sensor size: 1/5"; Pixel size: 1.7 μm

Video recording:

1920x1080 (Full HD) (30 fps)

1920x1080 (Full HD) (30 fps), 1280x720 (HD) (120 fps)

Front:

20 MP

13 MP (HDR)

Video capture:

1920x1080 (Full HD)

Design

Dimensions:

6.27 x 2.88 x 0.34 inches (159.3 x 73.1 x 8.6 mm)

6.39 x 3.04 x 0.35 inches (162.3 x 77.2 x 8.9 mm)

Weight:

6.53 oz (185.0 g)

7.02 oz (199.0 g)

Materials:

Back: Plastic

Frame: Plastic

Resistance:

Splash

Biometrics:

In-screen fingerprint

Fingerprint (touch)

Keys:

Right: Volume control, Lock/Unlock key

Colors:

Prism Crush black, Prism Crush blue, Prism Crush red, Prism Crush white

Forest green, Polar white, Midnight gray

Cellular

LTE (FDD):

Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 20(800 DD)

Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)

LTE (TDD):

Bands 38(2600), 40(2300), 41(2600+)

UMTS:

Bands 1(2100), 2(1900), 5(850), 8(900)

Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)

Data Speed:

LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

Dual SIM:

Yes

SIM type:

Nano SIM

VoLTE:

Yes

Multimedia

Headphones:

3.5mm jack

Speakers:

Earpiece, Loudspeaker

Screen mirroring:

Wireless screen share

Additional microphone(s):

for Noise cancellation

Connectivity & Features

Bluetooth:

5.0

Wi-Fi:

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

USB:

Type-C (reversible), USB 2.0

Features:

Charging, OTG

Charging

Location:

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

Sensors:

Accelerometer, Gyroscope, Compass

Other:

NFC

NFC, Infrared

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

Price:

€ 300

In The Box:

22.5W Charger, Simple protective cover, USB Type-C cable, SIM eject tool, User guide, Warranty card

Availability

Officially announced:

Mar 24, 2020

Apr 30, 2020