Xiaomi Mi A2 vs Xiaomi Redmi Note 9 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.

8.5	8.5
Xiaomi Mi A2	Xiaomi Redmi Note 9
Released · Jul 27, 2018	Released · May 12, 2020
6.0-inch · 2160x1080px	6.5-inch · 2340x1080px
Dual camera	Quad camera
6GB · 128GB	3GB · 64GB
3010 mAh	5020 mAh

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)	7.02 oz (199.0 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

Display

Size
6.0-inch	6.5-inch
Resolution
2160x1080px, 18:9 ratio, 403 PPI	2340x1080px, 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 (14 nm)	MediaTek Helio G85 (12 nm)
Processor
Octa-core 2200 MHz Kryo 260	Octa-core 2000 MHz Arm Cortex-A75 and ArmCortex-A55
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
OS
Android (10, 8.1 Oreo)	Android (10), Xiaomi MI UI

Battery

Capacity
3010 mAh	5020 mAh
Type
Li - Polymer	Li - Polymer
Charging
Qualcomm Quick Charge 3.0	Fast charging, Reverse wired charging
Charge speed
	Wired: 18.0W

Battery Life Estimate

Untested

Browsing

Untested

Video

Untested

Gaming

Untested

Battery Life Estimate

Untested

Browsing

Untested

Video

10h 43min

Gaming

7h 34min

Camera

Rear
Dual camera	Quad camera
Main camera
12 MP (PDAF) Aperture size: F1.8 Sensor size: 1/2.9" Pixel size: 1.25 μm	48 MP (PDAF) Aperture size: F1.8 Sensor size: 1/2" Pixel size: 0.8 μm
Second camera
20 MP Aperture size: F1.8 Sensor size: 1/2.8" Pixel size: 1 μm	8 MP (Ultra-wide) Aperture size: F2.2 Sensor size: 1/4" Pixel size: 1.2 μm
Third camera
	2 MP (Macro, Autofocus) Aperture size: F2.4 Pixel size: 1.75 μm
Fourth camera
	2 MP Aperture size: F2.4 Sensor size: 1/5" Pixel size: 1.7 μm
Flash
LED	LED
Video recording
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (30 fps), 1280x720 (HD) (120 fps) Video calling, Video sharing	1920x1080 (Full HD) (30 fps), 1280x720 (HD) (120 fps)
Front
20 MP (Flash, HDR), Video capture: 1920x1080 (Full HD)	13 MP (HDR), 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, USB 2.0	Type-C, USB 2.0
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

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)
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)	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), 41(2600+)
3G
Bands 5(850), 8(900), 3(1800), 2(1900)	Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
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

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

Alternative variants

with 32 GB of storage


RAM	4GB
Internal storage	32GB

with 128GB storage


RAM	4GB
Internal storage	128GB

with 64 GB of storage


RAM	4GB
Internal storage	64GB

Links

Full specifications
Xiaomi Mi A2 Specs	Xiaomi Redmi Note 9 Specs
PhoneArena Review
Xiaomi Mi A2 Review	Xiaomi Redmi Note 9 Review
User Reviews
Xiaomi Mi A2 User Reviews	Xiaomi Redmi Note 9 User Reviews