Xiaomi Mi A2 vs Xiaomi Redmi Note 9
Compare phone and tablet specifications of up to three devices. Type a model name in the search field of our phone specs comparison tool or pick a popular device from the ones below.
Display
Size
Resolution
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
GPU
Adreno 512
Mali G52 MC2
RAM
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
Charging
Qualcomm Quick Charge 3.0
Fast charging, Reverse charging
Max charge speed
Wired: 18.0W
Camera
Rear
Dual camera
Quad camera
Main camera
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
Weight
the average is 6.3 oz (179 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
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
