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www.phonearena.com

Xiaomi Mi A2 vs Xiaomi Redmi Note 9S

Compare phone and tablet specifications of up to three devices at once.

Display

Size:

6.0 inches
6.7 inches

Resolution:

2160 x 1080 pixels, 18:9 ratio, 403 PPI
2400 x 1080 pixels, 20:9 ratio, 395 PPI

Technology:

IPS LCD
IPS LCD

Screen-to-body:

77.32 %
84.42 %

Features:

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

Hardware

System chip:

Qualcomm Snapdragon 660 SDM660
Qualcomm Snapdragon 720G SM7125

Processor:

Octa-core, 2200 MHz, Kryo 260, 64-bit, 14 nm
Octa-core, 2300 MHz, Kryo 465, 64-bit, 8 nm

GPU:

Adreno 512
Adreno 618

RAM:

6GB LPDDR4
4GB LPDDR4

Internal storage:

128GB
64GB

Storage expansion:

microSDXC up to 512 GB

Device type:

Smartphone
Smartphone

OS:

Android (10, 8.1 Oreo)
Android (11, 10)

Battery

Capacity:

3010 mAh
5020 mAh

Type:

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

Charging:

Qualcomm Quick Charge 3.0
Fast charging

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; Pixel size: 1.12 μm

Third camera:

5 MP (Macro, Autofocus)

Specifications:

Aperture size: F2.4; Pixel size: 1.12 μm

Fourth camera:

2 MP (Depth information)

Specifications:

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

Video recording:

3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (30 fps), 1280x720 (HD) (120 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (960 fps)

Features:

Video calling, Video sharing

Front:

20 MP (Flash, HDR)
16 MP (HDR, Slow-motion videos)

Video capture:

1920x1080 (Full HD)
1920x1080 (Full HD)

Design

Dimensions:

6.25 x 2.97 x 0.29 inches (158.7 x 75.4 x 7.3 mm)
6.53 x 3.02 x 0.35 inches (165.75 x 76.68 x 8.8 mm)

Weight:

5.93 oz (168.0 g)
7.37 oz (209.0 g)

Materials:

Back: Aluminum
Back: Glass (Corning Gorilla Glass 5)

Biometrics:

Fingerprint (touch)
Fingerprint (touch)

Keys:

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

Colors:

Black, Gold, Pink, Blue, Red
Interstellar grey, Aurora blue, Glacier white

Cellular

LTE (FDD):

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

LTE (TDD):

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

UMTS:

Bands 5(850), 8(900), 3(1800), 2(1900)
Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)

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)

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
Infrared

Buyers information

Price:

$ 249

In The Box:

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

Availability

Officially announced:

Jul 24, 2018
Mar 23, 2020
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