Xiaomi Mi A2 vs Xiaomi Redmi Note 9

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$190 VIEW ON ebay
$178 VIEW ON amazon

Display

Size

6.0 inches
6.5 inches

Resolution

2160 x 1080 pixels, 18:9 ratio,
403 PPI
2340 x 1080 pixels, 19.5:9 ratio,
395 PPI

Technology

IPS LCD
IPS LCD

Screen-to-body

77.32 %
83.52 %

Features

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

Hardware

System chip

Qualcomm Snapdragon 660 SDM660
MediaTek Helio G85

Processor

Octa-core, 2200 MHz, Kryo 260, 64-bit, 14 nm
Octa-core, 2000 MHz, Arm Cortex-A75 and ArmCortex-A55, 64-bit, 12 nm

GPU

Adreno 512
Mali G52 MC2

RAM

6GB LPDDR4
3GB LPDDR4

Internal storage

128GB
64GB (eMMC 5.1)

Storage expansion

 
microSDXC up to 128 GB

Device type

Smartphone
Smartphone

OS

Android (10, 8.1 Oreo)
Android (10), Xiaomi MI UI

Battery

Capacity

3010 mAh
5020 mAh

Type

Li - Polymer, Not user replaceable
Li - Polymer, Not user replaceable

Battery life test results

 

Charging

Qualcomm Quick Charge 3.0
Fast charging, Reverse charging

Max charge speed

 
Wired: 18.0W

Camera

Rear

Dual camera
Quad camera

Main camera

12 MP (PDAF)
48 MP (PDAF)

Specifications

Aperture size: F1.8; Sensor size: 1/2.9"; Pixel size: 1.25 μm
Aperture size: F1.8; Sensor size: 1/2"; Pixel size: 0.8 μm

Second camera

20 MP
8 MP (Ultra-wide)

Specifications

Aperture size: F1.8; Sensor size: 1/2.8"; Pixel size: 1 μm
Aperture size: F2.2; Sensor size: 1/4"; Pixel size: 1.2 μm

Third camera

 
2 MP (Macro, Autofocus)

Specifications

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

Fourth camera

 
2 MP

Specifications

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

Video recording

3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (30 fps), 1280x720 (HD) (120 fps)
1920x1080 (Full HD) (30 fps), 1280x720 (HD) (120 fps)

Features

Video calling, Video sharing
 

Front

20 MP (Flash, HDR)
13 MP (HDR)

Design

Dimensions

6.25 x 2.97 x 0.29 inches (158.7 x 75.4 x 7.3 mm)
6.39 x 3.04 x 0.35 inches (162.3 x 77.2 x 8.9 mm)

Weight

5.93 oz (168.0 g)
the average is 6.3 oz (179 g)
7.02 oz (199.0 g)
the average is 6.3 oz (179 g)

Materials

Back: Aluminum
Frame: Plastic

Resistance

 
Splash

Biometrics

Fingerprint (touch)
Fingerprint (touch)

Keys

Right: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key

Colors

Black, Gold, Pink, Blue, Red
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)
Bands 38(2600), 40(2300), 41(2600+)

UMTS

850, 900, 1800, 1900 MHz
850, 900, 1700/2100, 1900, 2100 MHz

Data Speed

LTE-A, HSPA, HSUPA
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

Multimedia

Headphones

No 3.5mm jack
3.5mm jack

Speakers

Earpiece, Loudspeaker
Earpiece, Loudspeaker

Features

Album art cover, Background playback
 

Screen mirroring

Wireless screen share
Wireless screen share

Radio

FM
 

Additional microphone(s)

for Noise cancellation
for Noise cancellation

Connectivity & Features

Bluetooth

5.0
5.0

Wi-Fi

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

Features

Charging, Headphones port, Mass storage device
Charging

Location

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

Sensors

Accelerometer, Gyroscope, Compass, Hall (for flip covers)
Accelerometer, Gyroscope, Compass

Other

Infrared, VoIP, Tethering, Computer sync, OTA sync
NFC, Infrared

Buyers information

In The Box

Power adapter, USB cable, SIM eject too, Type-C to Audio adapter, User guide, Clear soft case
22.5W Charger, Simple protective cover, USB Type-C cable, SIM eject tool, User guide, Warranty card

Availability

Officially announced

Jul 24, 2018
Apr 30, 2020
This copy is for your personal, non-commercial use only. You can order presentation-ready copies for distribution to your colleagues, clients or customers at https://www.parsintl.com/phonearena or use the Reprints & Permissions tool that appears at the bottom of each web page. Visit https://www.parsintl.com/ for samples and additional information.
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