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Xiaomi Mi A3 vs Xiaomi Redmi 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.

Comparison mode:
Specs Size
Differences only
Xiaomi Mi A3
5.0
Xiaomi Redmi 9
Xiaomi Mi A3 Xiaomi Redmi 9
Released · Jul 24, 2019
Released · Jun 18, 2020
6.1-inch · 1560x720px
6.5-inch · 2340x1080px
Triple camera
Quad camera
4GB · 128GB
3GB · 32GB
4030 mAh
5020 mAh
Check prices

Design

Dimensions
6.04 x 2.83 x 0.33 inches
153.48 x 71.85 x 8.475 mm 		6.43 x 3.03 x 0.36 inches
163.32 x 77.01 x 9.1 mm
Weight
6.13 oz (173.8 g) 6.98 oz (198.0 g)
Materials
Back: Glass (Corning Gorilla Glass 5)
Frame: Plastic
Biometrics
2D Face unlock, Optical in-screen fingerprint 2D Face unlock, Fingerprint (touch)
Keys
Back: Volume control, Lock/Unlock key Right: Volume control, Lock/Unlock key
Colors
Gray, Blue, White Carbon gray, Sunset purple, Ocean green

Display

Size
6.1-inch 6.5-inch
Resolution
1560x720px, 19.5:9 ratio, 282 PPI 2340x1080px, 19.5:9 ratio, 395 PPI
Technology
Super AMOLED IPS LCD
Screen-to-body
82.56 % 83.27 %
Features
Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor Oleophobic coating, Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 665 (11 nm) MediaTek Helio G80 (12 nm)
Processor
Octa-core
2000 MHz
Kryo 260 		Octa-core
2000 MHz
Arm Cortex-A75 and Arm Cortex-A55
GPU
Adreno 610 Mali G52 MC2
RAM
4GB (LPDDR4) 3GB (LPDDR4)
Internal storage
128GB 32GB (eMMC 5.1)
Storage expansion
microSDXC up to 256 GB microSDXC
OS
Android (11, 10, 9.0 Pie) Android

Battery

Capacity
4030 mAh 5020 mAh
Charging
Qualcomm Quick Charge 3.0 Qualcomm Quick Charge 3.0
Charge speed
Wired: 18.0W
PhoneArena Battery Tests
Battery Life Estimate
Untested
Browsing
Untested
Video
Untested
Gaming
Untested
Battery Life Estimate
Untested
Browsing
Untested
Video
9h 15min
Gaming
7h 3min
Learn more on our PhoneArena Battery Test Results page

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 		13 MP (PDAF)
Aperture size: F2.2
Second camera
8 MP (Ultra-wide)
Aperture size: F2.2
Pixel size: 1.12 μm 		8 MP (Ultra-wide)
Aperture size: F2.2
Third camera
2 MP (Depth information)
Aperture size: F2.4 		5 MP (Macro)
Aperture size: F2.4
Fourth camera
2 MP (Depth information)
Flash
LED LED
Video recording
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)
EIS, Video calling, Video sharing 		1920x1080 (Full HD)
Front
32 MP, Video capture: 1920x1080 (Full HD) 8 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 b,g,n
Wi-Fi Direct, Hotspot
USB
Type-C Type-C, USB 2.0
Location
GPS, A-GPS, Glonass, BeiDou, Cell ID, Wi-Fi positioning GPS, A-GPS, Glonass, BeiDou, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Compass Accelerometer, Gyroscope, Compass
Other
Infrared, VoIP, Tethering, Computer sync, OTA sync NFC, 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 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) 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), 4(1700/2100), 2(1900), 1(2100) Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
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
HD Voice
Yes
VoLTE
Yes

Buyers information

In The Box
10W charger, USB Type-C cable, SIM eject tool, User guide, Soft case, Warranty card 10W Charger, TPU case, USB Type-C cable, SIM eject tool, Warranty card, User guide

Availability

Officially announced
Jul 17, 2019

Alternative variants

with 64 GB storage
Internal storage 64GB
with 64GB storage
RAM 4GB
Internal storage 64GB
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