Xiaomi Mi A3 vs Xiaomi Redmi Note 9S Specs Comparison

Design

Dimensions
6.04 x 2.83 x 0.33 inches 153.48 x 71.85 x 8.475 mm	6.53 x 3.02 x 0.35 inches 165.75 x 76.68 x 8.8 mm
Weight
6.13 oz (173.8 g)	7.37 oz (209.0 g)
Materials
Back: Glass (Corning Gorilla Glass 5) Frame: Plastic	Back: Glass (Corning Gorilla Glass 5)
Biometrics
2D Face unlock, Optical in-screen fingerprint	Fingerprint (touch)
Keys
Back: Volume control, Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Gray, Blue, White	Interstellar grey, Aurora blue, Glacier white

Display

Size
6.1-inch	6.7-inch
Resolution
1560x720px, 19.5:9 ratio, 282 PPI	2400x1080px, 20:9 ratio, 395 PPI
Technology
Super AMOLED	IPS LCD
Screen-to-body
82.56 %	84.42 %
Features
Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor	HDR support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 665 (11 nm)	Qualcomm Snapdragon 720G SM7125 (8 nm)
Processor
Octa-core 2000 MHz Kryo 260	Octa-core 2300 MHz Kryo 465
GPU
Adreno 610	Adreno 618
RAM
4GB (LPDDR4)	4GB (LPDDR4)
Internal storage
128GB	64GB
Storage expansion
microSDXC up to 256 GB	microSDXC up to 512 GB
OS
Android (11, 10, 9.0 Pie)	Android (11, 10)

Battery

Capacity
4030 mAh	5020 mAh
Type
	Li - Polymer
Charging
Qualcomm Quick Charge 3.0	Fast charging

Camera

Rear
Triple camera	Quad camera
Main camera
48 MP (PDAF) Aperture size: F1.8 Sensor size: 1/2.3" Pixel size: 0.8 μm	48 MP (PDAF) Aperture size: F1.8 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 Pixel size: 1.12 μm
Third camera
2 MP (Depth information) Aperture size: F2.4	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
LED	Dual LED
Video recording
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps) EIS, Video calling, Video sharing	3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (960 fps)
Front
32 MP, Video capture: 1920x1080 (Full HD)	16 MP (HDR, Slow-motion videos), 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
Location
GPS, A-GPS, Glonass, 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, VoIP, Tethering, Computer sync, OTA sync	Infrared

Multimedia

Headphones
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)
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), 28(700 APT)
4G (TDD)
Bands 38(2600), 40(2300)	Bands 38(2600), 40(2300)
3G
Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)	Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)
Data Speed
LTE-A Cat 9 (450/50 Mbit/s), 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

Buyers information

MSRP
	$ 249
In The Box
10W charger, USB Type-C cable, SIM eject tool, User guide, Soft case, Warranty card	22.5W Wire charger, Simple protective cover, USB Type-C cable, SIM eject tool, User guide, Warranty card

Availability

Officially announced
Jul 17, 2019	Mar 23, 2020

Alternative variants

with 64 GB storage

Internal storage	64GB

with 128GB storage

RAM	6GB
Internal storage	128GB
MSRP	$ 279

Links

Full specifications
Xiaomi Mi A3 Specs	Xiaomi Redmi Note 9S Specs